In the cryptography package before 3.3.2 for Python, certain sequences of update calls to symmetrically encrypt multi-GB values could result in an integer overflow and buffer overflow, as demonstrated by the Fernet class.
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: High
For more information on CVSS3 Scores, click here.
### Suggested Fix
Type: Upgrade version
Release Date: 2021-02-07
Fix Resolution: 3.3.2
:rescue_worker_helmet: Automatic Remediation will be attempted for this issue.
CVE-2020-25659
### Vulnerable Library - cryptography-2.9.2-cp35-abi3-manylinux2010_x86_64.whl
cryptography is a package which provides cryptographic recipes and primitives to Python developers.
python-cryptography 3.2 is vulnerable to Bleichenbacher timing attacks in the RSA decryption API, via timed processing of valid PKCS#1 v1.5 ciphertext.
cryptography is a package which provides cryptographic recipes and primitives to Python developers.
Library home page: https://files.pythonhosted.org/packages/3c/04/686efee2dcdd25aecf357992e7d9362f443eb182ecd623f882bc9f7a6bba/cryptography-2.9.2-cp35-abi3-manylinux2010_x86_64.whl
Path to dependency file: /requirements.txt
Path to vulnerable library: /requirements.txt
Found in HEAD commit: 1e0af9ed88239d83a8ea30d040358111cc6ffbbf
Vulnerabilities
**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation
Details
CVE-2020-36242
### Vulnerable Library - cryptography-2.9.2-cp35-abi3-manylinux2010_x86_64.whlcryptography is a package which provides cryptographic recipes and primitives to Python developers.
Library home page: https://files.pythonhosted.org/packages/3c/04/686efee2dcdd25aecf357992e7d9362f443eb182ecd623f882bc9f7a6bba/cryptography-2.9.2-cp35-abi3-manylinux2010_x86_64.whl
Path to dependency file: /requirements.txt
Path to vulnerable library: /requirements.txt
Dependency Hierarchy: - :x: **cryptography-2.9.2-cp35-abi3-manylinux2010_x86_64.whl** (Vulnerable Library)
Found in HEAD commit: 1e0af9ed88239d83a8ea30d040358111cc6ffbbf
Found in base branch: main
### Vulnerability DetailsIn the cryptography package before 3.3.2 for Python, certain sequences of update calls to symmetrically encrypt multi-GB values could result in an integer overflow and buffer overflow, as demonstrated by the Fernet class.
Publish Date: 2021-02-07
URL: CVE-2020-36242
### CVSS 3 Score Details (9.1)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: High
For more information on CVSS3 Scores, click here. ### Suggested FixType: Upgrade version
Release Date: 2021-02-07
Fix Resolution: 3.3.2
:rescue_worker_helmet: Automatic Remediation will be attempted for this issue.
CVE-2020-25659
### Vulnerable Library - cryptography-2.9.2-cp35-abi3-manylinux2010_x86_64.whlcryptography is a package which provides cryptographic recipes and primitives to Python developers.
Library home page: https://files.pythonhosted.org/packages/3c/04/686efee2dcdd25aecf357992e7d9362f443eb182ecd623f882bc9f7a6bba/cryptography-2.9.2-cp35-abi3-manylinux2010_x86_64.whl
Path to dependency file: /requirements.txt
Path to vulnerable library: /requirements.txt
Dependency Hierarchy: - :x: **cryptography-2.9.2-cp35-abi3-manylinux2010_x86_64.whl** (Vulnerable Library)
Found in HEAD commit: 1e0af9ed88239d83a8ea30d040358111cc6ffbbf
Found in base branch: main
### Vulnerability Detailspython-cryptography 3.2 is vulnerable to Bleichenbacher timing attacks in the RSA decryption API, via timed processing of valid PKCS#1 v1.5 ciphertext.
Publish Date: 2021-01-11
URL: CVE-2020-25659
### 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: High - Integrity Impact: None - Availability Impact: None
For more information on CVSS3 Scores, click here. ### Suggested FixType: Upgrade version
Origin: https://github.com/pyca/cryptography/security/advisories/GHSA-hggm-jpg3-v476
Release Date: 2021-01-11
Fix Resolution: 3.2
:rescue_worker_helmet: Automatic Remediation will be attempted for this issue.:rescue_worker_helmet:Automatic Remediation will be attempted for this issue.