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Alpine: git: security update to 2.34.6-r0

critical Tenable Self-Hosted Container Security Plugin ID 404643

Description

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

 - Git is distributed revision control system. gitattributes are a mechanism to allow defining attributes for
 paths. These attributes can be defined by adding a `.gitattributes` file to the repository, which contains
 a set of file patterns and the attributes that should be set for paths matching this pattern. When parsing
 gitattributes, multiple integer overflows can occur when there is a huge number of path patterns, a huge
 number of attributes for a single pattern, or when the declared attribute names are huge. These overflows
 can be triggered via a crafted `.gitattributes` file that may be part of the commit history. Git silently
 splits lines longer than 2KB when parsing gitattributes from a file, but not when parsing them from the
 index. Consequentially, the failure mode depends on whether the file exists in the working tree, the index
 or both. This integer overflow can result in arbitrary heap reads and writes, which may result in remote
 code execution. The problem has been patched in the versions published on 2023-01-17, going back to
 v2.30.7. Users are advised to upgrade. There are no known workarounds for this issue. (CVE-2022-23521)

 - Git is distributed revision control system. `git log` can display commits in an arbitrary format using its
 `--format` specifiers. This functionality is also exposed to `git archive` via the `export-subst`
 gitattribute. When processing the padding operators, there is a integer overflow in
 `pretty.c::format_and_pad_commit()` where a `size_t` is stored improperly as an `int`, and then added as
 an offset to a `memcpy()`. This overflow can be triggered directly by a user running a command which
 invokes the commit formatting machinery (e.g., `git log --format=...`). It may also be triggered
 indirectly through git archive via the export-subst mechanism, which expands format specifiers inside of
 files within the repository during a git archive. This integer overflow can result in arbitrary heap
 writes, which may result in arbitrary code execution. The problem has been patched in the versions
 published on 2023-01-17, going back to v2.30.7. Users are advised to upgrade. Users who are unable to
 upgrade should disable `git archive` in untrusted repositories. If you expose git archive via `git
 daemon`, disable it by running `git config --global daemon.uploadArch false`. (CVE-2022-41903)

See Also

https://security.alpinelinux.org/vuln/CVE-2022-23521

https://security.alpinelinux.org/vuln/CVE-2022-41903

Plugin Details

Severity: Critical

ID: 404643

Version: Revision 1.29

Type: Local

Published: 10/31/2023

Updated: 6/3/2025

Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.58

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2022-41903

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 1/10/2023

Reference Information

CVE: CVE-2022-23521, CVE-2022-41903