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netty-codec-http-4.1.39.Final.jar: 12 vulnerabilities (highest severity is: 9.1) - autoclosed #7

Closed mend-for-github-com[bot] closed 2 years ago

mend-for-github-com[bot] commented 2 years ago
Vulnerable Library - netty-codec-http-4.1.39.Final.jar

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.

Path to dependency file: /build.gradle

Path to vulnerable library: /caches/modules-2/files-2.1/io.netty/netty-codec-http/4.1.39.Final/732d06961162e27fa3ae5989541c4460853745d3/netty-codec-http-4.1.39.Final.jar

Found in HEAD commit: 4f73f60ce7d33af55123ea832a2e455f8feeadfa

Vulnerabilities

CVE Severity CVSS Dependency Type Fixed in Remediation Available
CVE-2019-20445 High 9.1 netty-codec-http-4.1.39.Final.jar Direct 4.1.44.Final
CVE-2019-20444 High 9.1 netty-codec-http-4.1.39.Final.jar Direct 4.1.44.Final
CVE-2020-7238 High 7.5 netty-codec-http-4.1.39.Final.jar Direct 4.1.44.Final
CVE-2020-11612 High 7.5 netty-codec-4.1.39.Final.jar Transitive 4.1.46.Final
CVE-2021-37136 High 7.5 netty-codec-4.1.39.Final.jar Transitive 4.1.68.Final
CVE-2021-37137 High 7.5 netty-codec-4.1.39.Final.jar Transitive 4.1.68.Final
CVE-2019-16869 High 7.5 netty-codec-http-4.1.39.Final.jar Direct 4.1.42.Final
WS-2020-0408 High 7.4 netty-handler-4.1.39.Final.jar Transitive 4.1.69.Final
CVE-2021-43797 Medium 6.5 netty-codec-http-4.1.39.Final.jar Direct 4.1.71.Final
CVE-2021-21295 Medium 5.9 netty-codec-http-4.1.39.Final.jar Direct 4.1.60.Final
CVE-2022-24823 Medium 5.5 netty-common-4.1.39.Final.jar Transitive N/A
CVE-2021-21290 Medium 5.5 detected in multiple dependencies Transitive 4.1.59.Final

Details

CVE-2019-20445 ### Vulnerable Library - netty-codec-http-4.1.39.Final.jar

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.

Path to dependency file: /build.gradle

Path to vulnerable library: /caches/modules-2/files-2.1/io.netty/netty-codec-http/4.1.39.Final/732d06961162e27fa3ae5989541c4460853745d3/netty-codec-http-4.1.39.Final.jar

Dependency Hierarchy: - :x: **netty-codec-http-4.1.39.Final.jar** (Vulnerable Library)

Found in HEAD commit: 4f73f60ce7d33af55123ea832a2e455f8feeadfa

Found in base branch: main

### Vulnerability Details

HttpObjectDecoder.java in Netty before 4.1.44 allows a Content-Length header to be accompanied by a second Content-Length header, or by a Transfer-Encoding header.

Publish Date: 2020-01-29

URL: CVE-2019-20445

### 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: High - Availability Impact: None

For more information on CVSS3 Scores, click here.

### Suggested Fix

Type: Upgrade version

Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20445

Release Date: 2020-01-29

Fix Resolution: 4.1.44.Final

:rescue_worker_helmet: Automatic Remediation is available for this issue
CVE-2019-20444 ### Vulnerable Library - netty-codec-http-4.1.39.Final.jar

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.

Path to dependency file: /build.gradle

Path to vulnerable library: /caches/modules-2/files-2.1/io.netty/netty-codec-http/4.1.39.Final/732d06961162e27fa3ae5989541c4460853745d3/netty-codec-http-4.1.39.Final.jar

Dependency Hierarchy: - :x: **netty-codec-http-4.1.39.Final.jar** (Vulnerable Library)

Found in HEAD commit: 4f73f60ce7d33af55123ea832a2e455f8feeadfa

Found in base branch: main

### Vulnerability Details

HttpObjectDecoder.java in Netty before 4.1.44 allows an HTTP header that lacks a colon, which might be interpreted as a separate header with an incorrect syntax, or might be interpreted as an "invalid fold."

Publish Date: 2020-01-29

URL: CVE-2019-20444

### 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: High - Availability Impact: None

For more information on CVSS3 Scores, click here.

### Suggested Fix

Type: Upgrade version

Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20444

Release Date: 2020-01-29

Fix Resolution: 4.1.44.Final

:rescue_worker_helmet: Automatic Remediation is available for this issue
CVE-2020-7238 ### Vulnerable Library - netty-codec-http-4.1.39.Final.jar

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.

Path to dependency file: /build.gradle

Path to vulnerable library: /caches/modules-2/files-2.1/io.netty/netty-codec-http/4.1.39.Final/732d06961162e27fa3ae5989541c4460853745d3/netty-codec-http-4.1.39.Final.jar

Dependency Hierarchy: - :x: **netty-codec-http-4.1.39.Final.jar** (Vulnerable Library)

Found in HEAD commit: 4f73f60ce7d33af55123ea832a2e455f8feeadfa

Found in base branch: main

### Vulnerability Details

Netty 4.1.43.Final allows HTTP Request Smuggling because it mishandles Transfer-Encoding whitespace (such as a [space]Transfer-Encoding:chunked line) and a later Content-Length header. This issue exists because of an incomplete fix for CVE-2019-16869.

Publish Date: 2020-01-27

URL: CVE-2020-7238

### 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 Fix

Type: Upgrade version

Release Date: 2020-01-27

Fix Resolution: 4.1.44.Final

:rescue_worker_helmet: Automatic Remediation is available for this issue
CVE-2020-11612 ### Vulnerable Library - netty-codec-4.1.39.Final.jar

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.

Library home page: https://netty.io/

Path to dependency file: /build.gradle

Path to vulnerable library: /home/wss-scanner/.gradle/caches/modules-2/files-2.1/io.netty/netty-codec/4.1.39.Final/38b9d79e31f6b00bd680f88c0289a2522d30d05b/netty-codec-4.1.39.Final.jar

Dependency Hierarchy: - netty-codec-http-4.1.39.Final.jar (Root Library) - :x: **netty-codec-4.1.39.Final.jar** (Vulnerable Library)

Found in HEAD commit: 4f73f60ce7d33af55123ea832a2e455f8feeadfa

Found in base branch: main

### Vulnerability Details

The ZlibDecoders in Netty 4.1.x before 4.1.46 allow for unbounded memory allocation while decoding a ZlibEncoded byte stream. An attacker could send a large ZlibEncoded byte stream to the Netty server, forcing the server to allocate all of its free memory to a single decoder.

Publish Date: 2020-04-07

URL: CVE-2020-11612

### 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: None - Availability Impact: High

For more information on CVSS3 Scores, click here.

### Suggested Fix

Type: Upgrade version

Origin: https://netty.io/news/2020/02/28/4-1-46-Final.html

Release Date: 2020-04-07

Fix Resolution (io.netty:netty-codec): 4.1.46.Final

Direct dependency fix Resolution (io.netty:netty-codec-http): 4.1.46.Final

:rescue_worker_helmet: Automatic Remediation is available for this issue
CVE-2021-37136 ### Vulnerable Library - netty-codec-4.1.39.Final.jar

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.

Library home page: https://netty.io/

Path to dependency file: /build.gradle

Path to vulnerable library: /home/wss-scanner/.gradle/caches/modules-2/files-2.1/io.netty/netty-codec/4.1.39.Final/38b9d79e31f6b00bd680f88c0289a2522d30d05b/netty-codec-4.1.39.Final.jar

Dependency Hierarchy: - netty-codec-http-4.1.39.Final.jar (Root Library) - :x: **netty-codec-4.1.39.Final.jar** (Vulnerable Library)

Found in HEAD commit: 4f73f60ce7d33af55123ea832a2e455f8feeadfa

Found in base branch: main

### Vulnerability Details

The Bzip2 decompression decoder function doesn't allow setting size restrictions on the decompressed output data (which affects the allocation size used during decompression). All users of Bzip2Decoder are affected. The malicious input can trigger an OOME and so a DoS attack

Publish Date: 2021-10-19

URL: CVE-2021-37136

### 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: None - Availability Impact: High

For more information on CVSS3 Scores, click here.

### Suggested Fix

Type: Upgrade version

Origin: https://github.com/netty/netty/security/advisories/GHSA-grg4-wf29-r9vv

Release Date: 2021-10-19

Fix Resolution (io.netty:netty-codec): 4.1.68.Final

Direct dependency fix Resolution (io.netty:netty-codec-http): 4.1.68.Final

:rescue_worker_helmet: Automatic Remediation is available for this issue
CVE-2021-37137 ### Vulnerable Library - netty-codec-4.1.39.Final.jar

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.

Library home page: https://netty.io/

Path to dependency file: /build.gradle

Path to vulnerable library: /home/wss-scanner/.gradle/caches/modules-2/files-2.1/io.netty/netty-codec/4.1.39.Final/38b9d79e31f6b00bd680f88c0289a2522d30d05b/netty-codec-4.1.39.Final.jar

Dependency Hierarchy: - netty-codec-http-4.1.39.Final.jar (Root Library) - :x: **netty-codec-4.1.39.Final.jar** (Vulnerable Library)

Found in HEAD commit: 4f73f60ce7d33af55123ea832a2e455f8feeadfa

Found in base branch: main

### Vulnerability Details

The Snappy frame decoder function doesn't restrict the chunk length which may lead to excessive memory usage. Beside this it also may buffer reserved skippable chunks until the whole chunk was received which may lead to excessive memory usage as well. This vulnerability can be triggered by supplying malicious input that decompresses to a very big size (via a network stream or a file) or by sending a huge skippable chunk.

Publish Date: 2021-10-19

URL: CVE-2021-37137

### 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: None - Availability Impact: High

For more information on CVSS3 Scores, click here.

### Suggested Fix

Type: Upgrade version

Origin: https://github.com/advisories/GHSA-9vjp-v76f-g363

Release Date: 2021-10-19

Fix Resolution (io.netty:netty-codec): 4.1.68.Final

Direct dependency fix Resolution (io.netty:netty-codec-http): 4.1.68.Final

:rescue_worker_helmet: Automatic Remediation is available for this issue
CVE-2019-16869 ### Vulnerable Library - netty-codec-http-4.1.39.Final.jar

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.

Path to dependency file: /build.gradle

Path to vulnerable library: /caches/modules-2/files-2.1/io.netty/netty-codec-http/4.1.39.Final/732d06961162e27fa3ae5989541c4460853745d3/netty-codec-http-4.1.39.Final.jar

Dependency Hierarchy: - :x: **netty-codec-http-4.1.39.Final.jar** (Vulnerable Library)

Found in HEAD commit: 4f73f60ce7d33af55123ea832a2e455f8feeadfa

Found in base branch: main

### Vulnerability Details

Netty before 4.1.42.Final mishandles whitespace before the colon in HTTP headers (such as a "Transfer-Encoding : chunked" line), which leads to HTTP request smuggling.

Publish Date: 2019-09-26

URL: CVE-2019-16869

### 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 Fix

Type: Upgrade version

Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-16869

Release Date: 2019-09-26

Fix Resolution: 4.1.42.Final

:rescue_worker_helmet: Automatic Remediation is available for this issue
WS-2020-0408 ### Vulnerable Library - netty-handler-4.1.39.Final.jar

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.

Library home page: https://netty.io/

Path to dependency file: /build.gradle

Path to vulnerable library: /home/wss-scanner/.gradle/caches/modules-2/files-2.1/io.netty/netty-handler/4.1.39.Final/4a63b56de071c1b10a56b5d90095e4201ea4098f/netty-handler-4.1.39.Final.jar

Dependency Hierarchy: - netty-codec-http-4.1.39.Final.jar (Root Library) - :x: **netty-handler-4.1.39.Final.jar** (Vulnerable Library)

Found in HEAD commit: 4f73f60ce7d33af55123ea832a2e455f8feeadfa

Found in base branch: main

### Vulnerability Details

An issue was found in all versions of io.netty:netty-all. Host verification in Netty is disabled by default. This can lead to MITM attack in which an attacker can forge valid SSL/TLS certificates for a different hostname in order to intercept traffic that doesn’t intend for him. This is an issue because the certificate is not matched with the host.

Publish Date: 2020-06-22

URL: WS-2020-0408

### 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: High - Availability Impact: None

For more information on CVSS3 Scores, click here.

### Suggested Fix

Type: Upgrade version

Origin: https://nvd.nist.gov/vuln/detail/WS-2020-0408

Release Date: 2020-06-22

Fix Resolution (io.netty:netty-handler): 4.1.69.Final

Direct dependency fix Resolution (io.netty:netty-codec-http): 4.1.69.Final

:rescue_worker_helmet: Automatic Remediation is available for this issue
CVE-2021-43797 ### Vulnerable Library - netty-codec-http-4.1.39.Final.jar

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.

Path to dependency file: /build.gradle

Path to vulnerable library: /caches/modules-2/files-2.1/io.netty/netty-codec-http/4.1.39.Final/732d06961162e27fa3ae5989541c4460853745d3/netty-codec-http-4.1.39.Final.jar

Dependency Hierarchy: - :x: **netty-codec-http-4.1.39.Final.jar** (Vulnerable Library)

Found in HEAD commit: 4f73f60ce7d33af55123ea832a2e455f8feeadfa

Found in base branch: main

### Vulnerability Details

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. Netty prior to version 4.1.71.Final skips control chars when they are present at the beginning / end of the header name. It should instead fail fast as these are not allowed by the spec and could lead to HTTP request smuggling. Failing to do the validation might cause netty to "sanitize" header names before it forward these to another remote system when used as proxy. This remote system can't see the invalid usage anymore, and therefore does not do the validation itself. Users should upgrade to version 4.1.71.Final. Mend Note: After conducting further research, Mend has determined that all versions of netty up to version 4.1.71.Final are vulnerable to CVE-2021-43797.

Publish Date: 2021-12-09

URL: CVE-2021-43797

### 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: High - Availability Impact: None

For more information on CVSS3 Scores, click here.

### Suggested Fix

Type: Upgrade version

Origin: CVE-2021-43797

Release Date: 2021-12-09

Fix Resolution: 4.1.71.Final

:rescue_worker_helmet: Automatic Remediation is available for this issue
CVE-2021-21295 ### Vulnerable Library - netty-codec-http-4.1.39.Final.jar

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.

Path to dependency file: /build.gradle

Path to vulnerable library: /caches/modules-2/files-2.1/io.netty/netty-codec-http/4.1.39.Final/732d06961162e27fa3ae5989541c4460853745d3/netty-codec-http-4.1.39.Final.jar

Dependency Hierarchy: - :x: **netty-codec-http-4.1.39.Final.jar** (Vulnerable Library)

Found in HEAD commit: 4f73f60ce7d33af55123ea832a2e455f8feeadfa

Found in base branch: main

### Vulnerability Details

Netty is an open-source, asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. In Netty (io.netty:netty-codec-http2) before version 4.1.60.Final there is a vulnerability that enables request smuggling. If a Content-Length header is present in the original HTTP/2 request, the field is not validated by `Http2MultiplexHandler` as it is propagated up. This is fine as long as the request is not proxied through as HTTP/1.1. If the request comes in as an HTTP/2 stream, gets converted into the HTTP/1.1 domain objects (`HttpRequest`, `HttpContent`, etc.) via `Http2StreamFrameToHttpObjectCodec `and then sent up to the child channel's pipeline and proxied through a remote peer as HTTP/1.1 this may result in request smuggling. In a proxy case, users may assume the content-length is validated somehow, which is not the case. If the request is forwarded to a backend channel that is a HTTP/1.1 connection, the Content-Length now has meaning and needs to be checked. An attacker can smuggle requests inside the body as it gets downgraded from HTTP/2 to HTTP/1.1. For an example attack refer to the linked GitHub Advisory. Users are only affected if all of this is true: `HTTP2MultiplexCodec` or `Http2FrameCodec` is used, `Http2StreamFrameToHttpObjectCodec` is used to convert to HTTP/1.1 objects, and these HTTP/1.1 objects are forwarded to another remote peer. This has been patched in 4.1.60.Final As a workaround, the user can do the validation by themselves by implementing a custom `ChannelInboundHandler` that is put in the `ChannelPipeline` behind `Http2StreamFrameToHttpObjectCodec`.

Publish Date: 2021-03-09

URL: CVE-2021-21295

### 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: High - Availability Impact: None

For more information on CVSS3 Scores, click here.

### Suggested Fix

Type: Upgrade version

Origin: https://github.com/advisories/GHSA-wm47-8v5p-wjpj

Release Date: 2021-03-09

Fix Resolution: 4.1.60.Final

:rescue_worker_helmet: Automatic Remediation is available for this issue
CVE-2022-24823 ### Vulnerable Library - netty-common-4.1.39.Final.jar

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.

Path to dependency file: /build.gradle

Path to vulnerable library: /home/wss-scanner/.gradle/caches/modules-2/files-2.1/io.netty/netty-common/4.1.39.Final/9c8c6d0dd43ee26ec8052a42d3ee1113dc6c08ed/netty-common-4.1.39.Final.jar

Dependency Hierarchy: - netty-codec-http-4.1.39.Final.jar (Root Library) - :x: **netty-common-4.1.39.Final.jar** (Vulnerable Library)

Found in HEAD commit: 4f73f60ce7d33af55123ea832a2e455f8feeadfa

Found in base branch: main

### Vulnerability Details

Netty is an open-source, asynchronous event-driven network application framework. The package `io.netty:netty-codec-http` prior to version 4.1.77.Final contains an insufficient fix for CVE-2021-21290. When Netty's multipart decoders are used local information disclosure can occur via the local system temporary directory if temporary storing uploads on the disk is enabled. This only impacts applications running on Java version 6 and lower. Additionally, this vulnerability impacts code running on Unix-like systems, and very old versions of Mac OSX and Windows as they all share the system temporary directory between all users. Version 4.1.77.Final contains a patch for this vulnerability. As a workaround, specify one's own `java.io.tmpdir` when starting the JVM or use DefaultHttpDataFactory.setBaseDir(...) to set the directory to something that is only readable by the current user.

Publish Date: 2022-05-06

URL: CVE-2022-24823

### CVSS 3 Score Details (5.5)

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: None - Availability Impact: None

For more information on CVSS3 Scores, click here.

### Suggested Fix

Type: Upgrade version

Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-24823

Release Date: 2022-05-06

Fix Resolution: io.netty:netty-all;io.netty:netty-common - 4.1.77.Final

CVE-2021-21290 ### Vulnerable Libraries - netty-handler-4.1.39.Final.jar, netty-codec-http-4.1.39.Final.jar

### netty-handler-4.1.39.Final.jar

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.

Library home page: https://netty.io/

Path to dependency file: /build.gradle

Path to vulnerable library: /home/wss-scanner/.gradle/caches/modules-2/files-2.1/io.netty/netty-handler/4.1.39.Final/4a63b56de071c1b10a56b5d90095e4201ea4098f/netty-handler-4.1.39.Final.jar

Dependency Hierarchy: - netty-codec-http-4.1.39.Final.jar (Root Library) - :x: **netty-handler-4.1.39.Final.jar** (Vulnerable Library) ### netty-codec-http-4.1.39.Final.jar

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.

Path to dependency file: /build.gradle

Path to vulnerable library: /caches/modules-2/files-2.1/io.netty/netty-codec-http/4.1.39.Final/732d06961162e27fa3ae5989541c4460853745d3/netty-codec-http-4.1.39.Final.jar

Dependency Hierarchy: - :x: **netty-codec-http-4.1.39.Final.jar** (Vulnerable Library)

Found in HEAD commit: 4f73f60ce7d33af55123ea832a2e455f8feeadfa

Found in base branch: main

### Vulnerability Details

Netty is an open-source, asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. In Netty before version 4.1.59.Final there is a vulnerability on Unix-like systems involving an insecure temp file. When netty's multipart decoders are used local information disclosure can occur via the local system temporary directory if temporary storing uploads on the disk is enabled. On unix-like systems, the temporary directory is shared between all user. As such, writing to this directory using APIs that do not explicitly set the file/directory permissions can lead to information disclosure. Of note, this does not impact modern MacOS Operating Systems. The method "File.createTempFile" on unix-like systems creates a random file, but, by default will create this file with the permissions "-rw-r--r--". Thus, if sensitive information is written to this file, other local users can read this information. This is the case in netty's "AbstractDiskHttpData" is vulnerable. This has been fixed in version 4.1.59.Final. As a workaround, one may specify your own "java.io.tmpdir" when you start the JVM or use "DefaultHttpDataFactory.setBaseDir(...)" to set the directory to something that is only readable by the current user.

Publish Date: 2021-02-08

URL: CVE-2021-21290

### CVSS 3 Score Details (5.5)

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: None - Availability Impact: None

For more information on CVSS3 Scores, click here.

### Suggested Fix

Type: Upgrade version

Origin: https://github.com/netty/netty/security/advisories/GHSA-5mcr-gq6c-3hq2

Release Date: 2021-02-08

Fix Resolution (io.netty:netty-handler): 4.1.59.Final

Direct dependency fix Resolution (io.netty:netty-codec-http): 4.1.59.Final

:rescue_worker_helmet: Automatic Remediation is available for this issue

:rescue_worker_helmet: Automatic Remediation is available for this issue.

mend-for-github-com[bot] commented 2 years ago

:heavy_check_mark: This issue was automatically closed by Mend because the vulnerable library in the specific branch(es) was either marked as ignored or it is no longer part of the Mend inventory.