Debian dla-3145 : git - security update

high Nessus Plugin ID 166092

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Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3145 advisory.

------------------------------------------------------------------------- Debian LTS Advisory DLA-3145-1 [email protected] https://www.debian.org/lts/security/ Markus Koschany October 11, 2022 https://wiki.debian.org/LTS
-------------------------------------------------------------------------

Package : git Version : 1:2.20.1-2+deb10u4 CVE ID : CVE-2021-21300 CVE-2021-40330 Debian Bug : 985120

Several security vulnerabilities have been discovered in Git, a fast, scalable, distributed revision control system, which may affect multi-user systems.

CVE-2021-21300

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).

CVE-2021-40330

git_connect_git in connect.c allows a repository path to contain a newline character, which may result in unexpected cross-protocol requests, as demonstrated by the git://localhost:1234/%0d%0a%0d%0aGET%20/%20HTTP/1.1 substring.

For Debian 10 buster, these problems have been fixed in version 1:2.20.1-2+deb10u4.

We recommend that you upgrade your git packages.

For the detailed security status of git please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/git

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS Attachment:
signature.asc Description: This is a digitally signed message part

Tenable has extracted the preceding description block directly from the Debian 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

Upgrade the git packages.

Plugin Details

Severity: High

ID: 166092

File Name: debian_DLA-3145.nasl

Version: 1.4

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 10/13/2022

Updated: 1/22/2025

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.4

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:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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

CVSS Score Source: CVE-2021-40330

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:git-man, p-cpe:/a:debian:debian_linux:gitweb, p-cpe:/a:debian:debian_linux:git-el, p-cpe:/a:debian:debian_linux:git-all, cpe:/o:debian:debian_linux:10.0, p-cpe:/a:debian:debian_linux:git-cvs, p-cpe:/a:debian:debian_linux:git, p-cpe:/a:debian:debian_linux:git-daemon-sysvinit, p-cpe:/a:debian:debian_linux:git-gui, p-cpe:/a:debian:debian_linux:git-mediawiki, p-cpe:/a:debian:debian_linux:git-email, p-cpe:/a:debian:debian_linux:git-daemon-run, p-cpe:/a:debian:debian_linux:git-doc, p-cpe:/a:debian:debian_linux:git-svn, p-cpe:/a:debian:debian_linux:gitk

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/11/2022

Vulnerability Publication Date: 3/9/2021

Exploitable With

Metasploit (Git LFS Clone Command Exec)

Reference Information

CVE: CVE-2021-21300, CVE-2021-40330

Detections

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