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Alpine: multiple git packages, multiple perl-git packages: security update to 2.30.2-r0

high Tenable Self-Hosted Container Security Plugin ID 423968

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Git is an open-source distributed revision control system. In affected versions of Git a specially crafted
 repository that contains symbolic links as well as files using a clean/smudge filter such as Git LFS, may
 cause just-checked out script to be executed while cloning onto a case-insensitive file system such as
 NTFS, HFS+ or APFS (i.e. the default file systems on Windows and macOS). Note that clean/smudge filters
 have to be configured for that. Git for Windows configures Git LFS by default, and is therefore
 vulnerable. The problem has been patched in the versions published on Tuesday, March 9th, 2021. As a
 workaound, if symbolic link support is disabled in Git (e.g. via `git config --global core.symlinks
 false`), the described attack won't work. Likewise, if no clean/smudge filters such as Git LFS are
 configured globally (i.e. _before_ cloning), the attack is foiled. As always, it is best to avoid cloning
 repositories from untrusted sources. The earliest impacted version is 2.14.2. The fix versions are:
 2.30.1, 2.29.3, 2.28.1, 2.27.1, 2.26.3, 2.25.5, 2.24.4, 2.23.4, 2.22.5, 2.21.4, 2.20.5, 2.19.6, 2.18.5,
 2.17.62.17.6. (CVE-2021-21300)

See Also

https://security.alpinelinux.org/vuln/CVE-2021-21300

Plugin Details

Severity: High

ID: 423968

Version: Revision 1.9

Type: Local

Published: 4/4/2025

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 97.35

CVSS v2

Risk Factor: Medium

Base Score: 5.1

Temporal Score: 4.2

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

CVSS Score Source: CVE-2021-21300

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 7

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

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 3/9/2021

Exploitable With

Metasploit (Git LFS Clone Command Exec)

Reference Information

CVE: CVE-2021-21300