TencentOS Server 2: git (TSSA-2023:0030)

high Nessus Plugin ID 238946

Synopsis

The remote TencentOS Server 2 host is missing one or more security updates.

Description

The version of Tencent Linux installed on the remote TencentOS Server 2 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2023:0030 advisory.

Package updates are available for TencentOS Server 2 that fix the following vulnerabilities:

CVE-2022-23521:
A flaw was found in Git, a distributed revision control system. When parsing gitattributes, a mechanism to allow defining attributes for paths, multiple integer overflows can occur when there is a huge number of path patterns, attributes for a single pattern, or declared attribute names. 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 allow remote code execution.

CVE-2022-41903:
A flaw was found in Git, a distributed revision control system. This issue occurs due to an 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 the git archive via the export-subst mechanism, which expands format specifiers inside files within the repository during a git archive. This integer overflow can result in arbitrary heap writes, which may allow arbitrary code execution.

Tenable has extracted the preceding description block directly from the Tencent Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

Plugin Details

Severity: High

ID: 238946

File Name: tencentos_TSSA_2023_0030.nasl

Version: 1.1

Type: local

Family: Tencent Local Security Checks

Published: 6/16/2025

Updated: 6/16/2025

Supported Sensors: Nessus

Vulnerability Information

CPE: p-cpe:/a:tencent:tencentos_server:git, cpe:/o:tencent:tencentos_server:2

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/etc/os-release, Host/TencentOS/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 3/9/2023

Vulnerability Publication Date: 3/9/2023

Detections

Analytics