This repository contains the source code, documentation, and resources for Galactic Chain, a high-performance, interoperable blockchain network designed for scalability and security.
Issue summary: The POLY1305 MAC (message authentication code) implementation
contains a bug that might corrupt the internal state of applications on the
Windows 64 platform when running on newer X86_64 processors supporting the
AVX512-IFMA instructions.
Impact summary: If in an application that uses the OpenSSL library an attacker
can influence whether the POLY1305 MAC algorithm is used, the application
state might be corrupted with various application dependent consequences.
The POLY1305 MAC (message authentication code) implementation in OpenSSL does
not save the contents of non-volatile XMM registers on Windows 64 platform
when calculating the MAC of data larger than 64 bytes. Before returning to
the caller all the XMM registers are set to zero rather than restoring their
previous content. The vulnerable code is used only on newer x86_64 processors
supporting the AVX512-IFMA instructions.
The consequences of this kind of internal application state corruption can
be various - from no consequences, if the calling application does not
depend on the contents of non-volatile XMM registers at all, to the worst
consequences, where the attacker could get complete control of the application
process. However given the contents of the registers are just zeroized so
the attacker cannot put arbitrary values inside, the most likely consequence,
if any, would be an incorrect result of some application dependent
calculations or a crash leading to a denial of service.
The POLY1305 MAC algorithm is most frequently used as part of the
CHACHA20-POLY1305 AEAD (authenticated encryption with associated data)
algorithm. The most common usage of this AEAD cipher is with TLS protocol
versions 1.2 and 1.3 and a malicious client can influence whether this AEAD
cipher is used by the server. This implies that server applications using
OpenSSL can be potentially impacted. However we are currently not aware of
any concrete application that would be affected by this issue therefore we
consider this a Low severity security issue.
As a workaround the AVX512-IFMA instructions support can be disabled at
runtime by setting the environment variable OPENSSL_ia32cap:
OPENSSL_ia32cap=:~0x200000
The FIPS provider is not affected by this issue.
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CVE-2023-50782
### Vulnerable Library - cryptography-3.4.7-cp36-abi3-manylinux2014_x86_64.whl
cryptography is a package which provides cryptographic recipes and primitives to Python developers.
A flaw was found in the python-cryptography package. This issue may allow a remote attacker to decrypt captured messages in TLS servers that use RSA key exchanges, which may lead to exposure of confidential or sensitive data.
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CVE-2023-38325
### Vulnerable Library - cryptography-3.4.7-cp36-abi3-manylinux2014_x86_64.whl
cryptography is a package which provides cryptographic recipes and primitives to Python developers.
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CVE-2023-0286
### Vulnerable Library - cryptography-3.4.7-cp36-abi3-manylinux2014_x86_64.whl
cryptography is a package which provides cryptographic recipes and primitives to Python developers.
There is a type confusion vulnerability relating to X.400 address processing
inside an X.509 GeneralName. X.400 addresses were parsed as an ASN1_STRING but
the public structure definition for GENERAL_NAME incorrectly specified the type
of the x400Address field as ASN1_TYPE. This field is subsequently interpreted by
the OpenSSL function GENERAL_NAME_cmp as an ASN1_TYPE rather than an
ASN1_STRING.
When CRL checking is enabled (i.e. the application sets the
X509_V_FLAG_CRL_CHECK flag), this vulnerability may allow an attacker to pass
arbitrary pointers to a memcmp call, enabling them to read memory contents or
enact a denial of service. In most cases, the attack requires the attacker to
provide both the certificate chain and CRL, neither of which need to have a
valid signature. If the attacker only controls one of these inputs, the other
input must already contain an X.400 address as a CRL distribution point, which
is uncommon. As such, this vulnerability is most likely to only affect
applications which have implemented their own functionality for retrieving CRLs
over a network.
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CVE-2023-2650
### Vulnerable Library - cryptography-3.4.7-cp36-abi3-manylinux2014_x86_64.whl
cryptography is a package which provides cryptographic recipes and primitives to Python developers.
Issue summary: Processing some specially crafted ASN.1 object identifiers or
data containing them may be very slow.
Impact summary: Applications that use OBJ_obj2txt() directly, or use any of
the OpenSSL subsystems OCSP, PKCS7/SMIME, CMS, CMP/CRMF or TS with no message
size limit may experience notable to very long delays when processing those
messages, which may lead to a Denial of Service.
An OBJECT IDENTIFIER is composed of a series of numbers - sub-identifiers -
most of which have no size limit. OBJ_obj2txt() may be used to translate
an ASN.1 OBJECT IDENTIFIER given in DER encoding form (using the OpenSSL
type ASN1_OBJECT) to its canonical numeric text form, which are the
sub-identifiers of the OBJECT IDENTIFIER in decimal form, separated by
periods.
When one of the sub-identifiers in the OBJECT IDENTIFIER is very large
(these are sizes that are seen as absurdly large, taking up tens or hundreds
of KiBs), the translation to a decimal number in text may take a very long
time. The time complexity is O(n^2) with 'n' being the size of the
sub-identifiers in bytes (*).
With OpenSSL 3.0, support to fetch cryptographic algorithms using names /
identifiers in string form was introduced. This includes using OBJECT
IDENTIFIERs in canonical numeric text form as identifiers for fetching
algorithms.
Such OBJECT IDENTIFIERs may be received through the ASN.1 structure
AlgorithmIdentifier, which is commonly used in multiple protocols to specify
what cryptographic algorithm should be used to sign or verify, encrypt or
decrypt, or digest passed data.
Applications that call OBJ_obj2txt() directly with untrusted data are
affected, with any version of OpenSSL. If the use is for the mere purpose
of display, the severity is considered low.
In OpenSSL 3.0 and newer, this affects the subsystems OCSP, PKCS7/SMIME,
CMS, CMP/CRMF or TS. It also impacts anything that processes X.509
certificates, including simple things like verifying its signature.
The impact on TLS is relatively low, because all versions of OpenSSL have a
100KiB limit on the peer's certificate chain. Additionally, this only
impacts clients, or servers that have explicitly enabled client
authentication.
In OpenSSL 1.1.1 and 1.0.2, this only affects displaying diverse objects,
such as X.509 certificates. This is assumed to not happen in such a way
that it would cause a Denial of Service, so these versions are considered
not affected by this issue in such a way that it would be cause for concern,
and the severity is therefore considered low.
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CVE-2023-49083
### Vulnerable Library - cryptography-3.4.7-cp36-abi3-manylinux2014_x86_64.whl
cryptography is a package which provides cryptographic recipes and primitives to Python developers.
cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Calling `load_pem_pkcs7_certificates` or `load_der_pkcs7_certificates` could lead to a NULL-pointer dereference and segfault. Exploitation of this vulnerability poses a serious risk of Denial of Service (DoS) for any application attempting to deserialize a PKCS7 blob/certificate. The consequences extend to potential disruptions in system availability and stability. This vulnerability has been patched in version 41.0.6.
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CVE-2023-3446
### Vulnerable Library - cryptography-3.4.7-cp36-abi3-manylinux2014_x86_64.whl
cryptography is a package which provides cryptographic recipes and primitives to Python developers.
Issue summary: Checking excessively long DH keys or parameters may be very slow.
Impact summary: Applications that use the functions DH_check(), DH_check_ex()
or EVP_PKEY_param_check() to check a DH key or DH parameters may experience long
delays. Where the key or parameters that are being checked have been obtained
from an untrusted source this may lead to a Denial of Service.
The function DH_check() performs various checks on DH parameters. One of those
checks confirms that the modulus ('p' parameter) is not too large. Trying to use
a very large modulus is slow and OpenSSL will not normally use a modulus which
is over 10,000 bits in length.
However the DH_check() function checks numerous aspects of the key or parameters
that have been supplied. Some of those checks use the supplied modulus value
even if it has already been found to be too large.
An application that calls DH_check() and supplies a key or parameters obtained
from an untrusted source could be vulernable to a Denial of Service attack.
The function DH_check() is itself called by a number of other OpenSSL functions.
An application calling any of those other functions may similarly be affected.
The other functions affected by this are DH_check_ex() and
EVP_PKEY_param_check().
Also vulnerable are the OpenSSL dhparam and pkeyparam command line applications
when using the '-check' option.
The OpenSSL SSL/TLS implementation is not affected by this issue.
The OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue.
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CVE-2023-23931
### Vulnerable Library - cryptography-3.4.7-cp36-abi3-manylinux2014_x86_64.whl
cryptography is a package which provides cryptographic recipes and primitives to Python developers.
cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. In affected versions `Cipher.update_into` would accept Python objects which implement the buffer protocol, but provide only immutable buffers. This would allow immutable objects (such as `bytes`) to be mutated, thus violating fundamental rules of Python and resulting in corrupted output. This now correctly raises an exception. This issue has been present since `update_into` was originally introduced in cryptography 1.8.
cryptography is a package which provides cryptographic recipes and primitives to Python developers.
Library home page: https://files.pythonhosted.org/packages/b2/26/7af637e6a7e87258b963f1731c5982fb31cd507f0d90d91836e446955d02/cryptography-3.4.7-cp36-abi3-manylinux2014_x86_64.whl
Path to dependency file: /blockchain/requirements.txt
Path to vulnerable library: /blockchain/requirements.txt
Found in HEAD commit: 56243b6f6a9d69dc996086fd1497f2255877936c
Vulnerabilities
**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation
Details
CVE-2023-4807
### Vulnerable Library - cryptography-3.4.7-cp36-abi3-manylinux2014_x86_64.whlcryptography is a package which provides cryptographic recipes and primitives to Python developers.
Library home page: https://files.pythonhosted.org/packages/b2/26/7af637e6a7e87258b963f1731c5982fb31cd507f0d90d91836e446955d02/cryptography-3.4.7-cp36-abi3-manylinux2014_x86_64.whl
Path to dependency file: /blockchain/requirements.txt
Path to vulnerable library: /blockchain/requirements.txt
Dependency Hierarchy: - :x: **cryptography-3.4.7-cp36-abi3-manylinux2014_x86_64.whl** (Vulnerable Library)
Found in HEAD commit: 56243b6f6a9d69dc996086fd1497f2255877936c
Found in base branch: main
### Vulnerability DetailsIssue summary: The POLY1305 MAC (message authentication code) implementation contains a bug that might corrupt the internal state of applications on the Windows 64 platform when running on newer X86_64 processors supporting the AVX512-IFMA instructions. Impact summary: If in an application that uses the OpenSSL library an attacker can influence whether the POLY1305 MAC algorithm is used, the application state might be corrupted with various application dependent consequences. The POLY1305 MAC (message authentication code) implementation in OpenSSL does not save the contents of non-volatile XMM registers on Windows 64 platform when calculating the MAC of data larger than 64 bytes. Before returning to the caller all the XMM registers are set to zero rather than restoring their previous content. The vulnerable code is used only on newer x86_64 processors supporting the AVX512-IFMA instructions. The consequences of this kind of internal application state corruption can be various - from no consequences, if the calling application does not depend on the contents of non-volatile XMM registers at all, to the worst consequences, where the attacker could get complete control of the application process. However given the contents of the registers are just zeroized so the attacker cannot put arbitrary values inside, the most likely consequence, if any, would be an incorrect result of some application dependent calculations or a crash leading to a denial of service. The POLY1305 MAC algorithm is most frequently used as part of the CHACHA20-POLY1305 AEAD (authenticated encryption with associated data) algorithm. The most common usage of this AEAD cipher is with TLS protocol versions 1.2 and 1.3 and a malicious client can influence whether this AEAD cipher is used by the server. This implies that server applications using OpenSSL can be potentially impacted. However we are currently not aware of any concrete application that would be affected by this issue therefore we consider this a Low severity security issue. As a workaround the AVX512-IFMA instructions support can be disabled at runtime by setting the environment variable OPENSSL_ia32cap: OPENSSL_ia32cap=:~0x200000 The FIPS provider is not affected by this issue.
Publish Date: 2023-09-08
URL: CVE-2023-4807
### CVSS 3 Score Details (7.8)Base Score Metrics: - Exploitability Metrics: - Attack Vector: Local - Attack Complexity: Low - Privileges Required: Low - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: High - Integrity Impact: High - Availability Impact: High
For more information on CVSS3 Scores, click here. ### Suggested FixType: Upgrade version
Origin: https://www.openssl.org/news/vulnerabilities.html
Release Date: 2023-09-08
Fix Resolution: openssl-3.0.11,openssl-3.1.3,OpenSSL_1_1_1w, cryptography - 41.0.4
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CVE-2023-50782
### Vulnerable Library - cryptography-3.4.7-cp36-abi3-manylinux2014_x86_64.whlcryptography is a package which provides cryptographic recipes and primitives to Python developers.
Library home page: https://files.pythonhosted.org/packages/b2/26/7af637e6a7e87258b963f1731c5982fb31cd507f0d90d91836e446955d02/cryptography-3.4.7-cp36-abi3-manylinux2014_x86_64.whl
Path to dependency file: /blockchain/requirements.txt
Path to vulnerable library: /blockchain/requirements.txt
Dependency Hierarchy: - :x: **cryptography-3.4.7-cp36-abi3-manylinux2014_x86_64.whl** (Vulnerable Library)
Found in HEAD commit: 56243b6f6a9d69dc996086fd1497f2255877936c
Found in base branch: main
### Vulnerability DetailsA flaw was found in the python-cryptography package. This issue may allow a remote attacker to decrypt captured messages in TLS servers that use RSA key exchanges, which may lead to exposure of confidential or sensitive data.
Publish Date: 2024-02-05
URL: CVE-2023-50782
### CVSS 3 Score Details (7.5)Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: High - Integrity Impact: None - Availability Impact: None
For more information on CVSS3 Scores, click here. ### Suggested FixType: Upgrade version
Origin: https://github.com/advisories/GHSA-3ww4-gg4f-jr7f
Release Date: 2024-02-05
Fix Resolution: 42.0.0
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CVE-2023-38325
### Vulnerable Library - cryptography-3.4.7-cp36-abi3-manylinux2014_x86_64.whlcryptography is a package which provides cryptographic recipes and primitives to Python developers.
Library home page: https://files.pythonhosted.org/packages/b2/26/7af637e6a7e87258b963f1731c5982fb31cd507f0d90d91836e446955d02/cryptography-3.4.7-cp36-abi3-manylinux2014_x86_64.whl
Path to dependency file: /blockchain/requirements.txt
Path to vulnerable library: /blockchain/requirements.txt
Dependency Hierarchy: - :x: **cryptography-3.4.7-cp36-abi3-manylinux2014_x86_64.whl** (Vulnerable Library)
Found in HEAD commit: 56243b6f6a9d69dc996086fd1497f2255877936c
Found in base branch: main
### Vulnerability DetailsThe cryptography package before 41.0.2 for Python mishandles SSH certificates that have critical options.
Publish Date: 2023-07-14
URL: CVE-2023-38325
### CVSS 3 Score Details (7.5)Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: High - Availability Impact: None
For more information on CVSS3 Scores, click here. ### Suggested FixType: Upgrade version
Origin: https://www.cve.org/CVERecord?id=CVE-2023-38325
Release Date: 2023-07-14
Fix Resolution: 41.0.2
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CVE-2023-0286
### Vulnerable Library - cryptography-3.4.7-cp36-abi3-manylinux2014_x86_64.whlcryptography is a package which provides cryptographic recipes and primitives to Python developers.
Library home page: https://files.pythonhosted.org/packages/b2/26/7af637e6a7e87258b963f1731c5982fb31cd507f0d90d91836e446955d02/cryptography-3.4.7-cp36-abi3-manylinux2014_x86_64.whl
Path to dependency file: /blockchain/requirements.txt
Path to vulnerable library: /blockchain/requirements.txt
Dependency Hierarchy: - :x: **cryptography-3.4.7-cp36-abi3-manylinux2014_x86_64.whl** (Vulnerable Library)
Found in HEAD commit: 56243b6f6a9d69dc996086fd1497f2255877936c
Found in base branch: main
### Vulnerability DetailsThere is a type confusion vulnerability relating to X.400 address processing inside an X.509 GeneralName. X.400 addresses were parsed as an ASN1_STRING but the public structure definition for GENERAL_NAME incorrectly specified the type of the x400Address field as ASN1_TYPE. This field is subsequently interpreted by the OpenSSL function GENERAL_NAME_cmp as an ASN1_TYPE rather than an ASN1_STRING. When CRL checking is enabled (i.e. the application sets the X509_V_FLAG_CRL_CHECK flag), this vulnerability may allow an attacker to pass arbitrary pointers to a memcmp call, enabling them to read memory contents or enact a denial of service. In most cases, the attack requires the attacker to provide both the certificate chain and CRL, neither of which need to have a valid signature. If the attacker only controls one of these inputs, the other input must already contain an X.400 address as a CRL distribution point, which is uncommon. As such, this vulnerability is most likely to only affect applications which have implemented their own functionality for retrieving CRLs over a network.
Publish Date: 2023-02-08
URL: CVE-2023-0286
### CVSS 3 Score Details (7.4)Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: High - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: High - Integrity Impact: None - Availability Impact: High
For more information on CVSS3 Scores, click here. ### Suggested FixType: Upgrade version
Origin: https://github.com/advisories/GHSA-x4qr-2fvf-3mr5
Release Date: 2023-02-08
Fix Resolution: openssl-3.0.8;cryptography - 39.0.1;openssl-src - 111.25.0+1.1.1t,300.0.12+3.0.8
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CVE-2023-2650
### Vulnerable Library - cryptography-3.4.7-cp36-abi3-manylinux2014_x86_64.whlcryptography is a package which provides cryptographic recipes and primitives to Python developers.
Library home page: https://files.pythonhosted.org/packages/b2/26/7af637e6a7e87258b963f1731c5982fb31cd507f0d90d91836e446955d02/cryptography-3.4.7-cp36-abi3-manylinux2014_x86_64.whl
Path to dependency file: /blockchain/requirements.txt
Path to vulnerable library: /blockchain/requirements.txt
Dependency Hierarchy: - :x: **cryptography-3.4.7-cp36-abi3-manylinux2014_x86_64.whl** (Vulnerable Library)
Found in HEAD commit: 56243b6f6a9d69dc996086fd1497f2255877936c
Found in base branch: main
### Vulnerability DetailsIssue summary: Processing some specially crafted ASN.1 object identifiers or data containing them may be very slow. Impact summary: Applications that use OBJ_obj2txt() directly, or use any of the OpenSSL subsystems OCSP, PKCS7/SMIME, CMS, CMP/CRMF or TS with no message size limit may experience notable to very long delays when processing those messages, which may lead to a Denial of Service. An OBJECT IDENTIFIER is composed of a series of numbers - sub-identifiers - most of which have no size limit. OBJ_obj2txt() may be used to translate an ASN.1 OBJECT IDENTIFIER given in DER encoding form (using the OpenSSL type ASN1_OBJECT) to its canonical numeric text form, which are the sub-identifiers of the OBJECT IDENTIFIER in decimal form, separated by periods. When one of the sub-identifiers in the OBJECT IDENTIFIER is very large (these are sizes that are seen as absurdly large, taking up tens or hundreds of KiBs), the translation to a decimal number in text may take a very long time. The time complexity is O(n^2) with 'n' being the size of the sub-identifiers in bytes (*). With OpenSSL 3.0, support to fetch cryptographic algorithms using names / identifiers in string form was introduced. This includes using OBJECT IDENTIFIERs in canonical numeric text form as identifiers for fetching algorithms. Such OBJECT IDENTIFIERs may be received through the ASN.1 structure AlgorithmIdentifier, which is commonly used in multiple protocols to specify what cryptographic algorithm should be used to sign or verify, encrypt or decrypt, or digest passed data. Applications that call OBJ_obj2txt() directly with untrusted data are affected, with any version of OpenSSL. If the use is for the mere purpose of display, the severity is considered low. In OpenSSL 3.0 and newer, this affects the subsystems OCSP, PKCS7/SMIME, CMS, CMP/CRMF or TS. It also impacts anything that processes X.509 certificates, including simple things like verifying its signature. The impact on TLS is relatively low, because all versions of OpenSSL have a 100KiB limit on the peer's certificate chain. Additionally, this only impacts clients, or servers that have explicitly enabled client authentication. In OpenSSL 1.1.1 and 1.0.2, this only affects displaying diverse objects, such as X.509 certificates. This is assumed to not happen in such a way that it would cause a Denial of Service, so these versions are considered not affected by this issue in such a way that it would be cause for concern, and the severity is therefore considered low.
Publish Date: 2023-05-30
URL: CVE-2023-2650
### CVSS 3 Score Details (6.5)Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: Required - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: None - Availability Impact: High
For more information on CVSS3 Scores, click here. ### Suggested FixType: Upgrade version
Origin: https://www.openssl.org/news/vulnerabilities.html
Release Date: 2023-05-30
Fix Resolution: OpenSSL_1_1_1u,openssl-3.0.9,openssl-3.1.1, cryptography - 41.0.0
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CVE-2023-49083
### Vulnerable Library - cryptography-3.4.7-cp36-abi3-manylinux2014_x86_64.whlcryptography is a package which provides cryptographic recipes and primitives to Python developers.
Library home page: https://files.pythonhosted.org/packages/b2/26/7af637e6a7e87258b963f1731c5982fb31cd507f0d90d91836e446955d02/cryptography-3.4.7-cp36-abi3-manylinux2014_x86_64.whl
Path to dependency file: /blockchain/requirements.txt
Path to vulnerable library: /blockchain/requirements.txt
Dependency Hierarchy: - :x: **cryptography-3.4.7-cp36-abi3-manylinux2014_x86_64.whl** (Vulnerable Library)
Found in HEAD commit: 56243b6f6a9d69dc996086fd1497f2255877936c
Found in base branch: main
### Vulnerability Detailscryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Calling `load_pem_pkcs7_certificates` or `load_der_pkcs7_certificates` could lead to a NULL-pointer dereference and segfault. Exploitation of this vulnerability poses a serious risk of Denial of Service (DoS) for any application attempting to deserialize a PKCS7 blob/certificate. The consequences extend to potential disruptions in system availability and stability. This vulnerability has been patched in version 41.0.6.
Publish Date: 2023-11-29
URL: CVE-2023-49083
### CVSS 3 Score Details (5.9)Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: High - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: None - Availability Impact: High
For more information on CVSS3 Scores, click here. ### Suggested FixType: Upgrade version
Origin: https://www.cve.org/CVERecord?id=CVE-2023-49083
Release Date: 2023-11-29
Fix Resolution: 41.0.6
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CVE-2023-3446
### Vulnerable Library - cryptography-3.4.7-cp36-abi3-manylinux2014_x86_64.whlcryptography is a package which provides cryptographic recipes and primitives to Python developers.
Library home page: https://files.pythonhosted.org/packages/b2/26/7af637e6a7e87258b963f1731c5982fb31cd507f0d90d91836e446955d02/cryptography-3.4.7-cp36-abi3-manylinux2014_x86_64.whl
Path to dependency file: /blockchain/requirements.txt
Path to vulnerable library: /blockchain/requirements.txt
Dependency Hierarchy: - :x: **cryptography-3.4.7-cp36-abi3-manylinux2014_x86_64.whl** (Vulnerable Library)
Found in HEAD commit: 56243b6f6a9d69dc996086fd1497f2255877936c
Found in base branch: main
### Vulnerability DetailsIssue summary: Checking excessively long DH keys or parameters may be very slow. Impact summary: Applications that use the functions DH_check(), DH_check_ex() or EVP_PKEY_param_check() to check a DH key or DH parameters may experience long delays. Where the key or parameters that are being checked have been obtained from an untrusted source this may lead to a Denial of Service. The function DH_check() performs various checks on DH parameters. One of those checks confirms that the modulus ('p' parameter) is not too large. Trying to use a very large modulus is slow and OpenSSL will not normally use a modulus which is over 10,000 bits in length. However the DH_check() function checks numerous aspects of the key or parameters that have been supplied. Some of those checks use the supplied modulus value even if it has already been found to be too large. An application that calls DH_check() and supplies a key or parameters obtained from an untrusted source could be vulernable to a Denial of Service attack. The function DH_check() is itself called by a number of other OpenSSL functions. An application calling any of those other functions may similarly be affected. The other functions affected by this are DH_check_ex() and EVP_PKEY_param_check(). Also vulnerable are the OpenSSL dhparam and pkeyparam command line applications when using the '-check' option. The OpenSSL SSL/TLS implementation is not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue.
Publish Date: 2023-07-19
URL: CVE-2023-3446
### CVSS 3 Score Details (5.3)Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: None - Availability Impact: Low
For more information on CVSS3 Scores, click here. ### Suggested FixType: Upgrade version
Origin: https://www.openssl.org/news/secadv/20230714.txt
Release Date: 2023-07-19
Fix Resolution: openssl-3.0.10,openssl-3.1.2, cryptography - 41.0.3
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CVE-2023-23931
### Vulnerable Library - cryptography-3.4.7-cp36-abi3-manylinux2014_x86_64.whlcryptography is a package which provides cryptographic recipes and primitives to Python developers.
Library home page: https://files.pythonhosted.org/packages/b2/26/7af637e6a7e87258b963f1731c5982fb31cd507f0d90d91836e446955d02/cryptography-3.4.7-cp36-abi3-manylinux2014_x86_64.whl
Path to dependency file: /blockchain/requirements.txt
Path to vulnerable library: /blockchain/requirements.txt
Dependency Hierarchy: - :x: **cryptography-3.4.7-cp36-abi3-manylinux2014_x86_64.whl** (Vulnerable Library)
Found in HEAD commit: 56243b6f6a9d69dc996086fd1497f2255877936c
Found in base branch: main
### Vulnerability Detailscryptography is a package designed to expose cryptographic primitives and recipes to Python developers. In affected versions `Cipher.update_into` would accept Python objects which implement the buffer protocol, but provide only immutable buffers. This would allow immutable objects (such as `bytes`) to be mutated, thus violating fundamental rules of Python and resulting in corrupted output. This now correctly raises an exception. This issue has been present since `update_into` was originally introduced in cryptography 1.8.
Publish Date: 2023-02-07
URL: CVE-2023-23931
### CVSS 3 Score Details (4.8)Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: High - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: Low - Availability Impact: Low
For more information on CVSS3 Scores, click here. ### Suggested FixType: Upgrade version
Origin: https://www.cve.org/CVERecord?id=CVE-2023-23931
Release Date: 2023-02-07
Fix Resolution: 39.0.1
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