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Fencer Vulns
high 8.5

CVE-2022-39260 json

Git vulnerable to Remote Code Execution via Heap overflow in `git shell`

published 2022-10-19 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-41771

cvss
8.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
4.0%
EPSS 4.0% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

Git is an open source, scalable, distributed revision control system. `git shell` is a restricted login shell that can be used to implement Git's push/pull functionality via SSH. In versions prior to 2.30.6, 2.31.5, 2.32.4, 2.33.5, 2.34.5, 2.35.5, 2.36.3, and 2.37.4, the function that splits the command arguments into an array improperly uses an `int` to represent the number of entries in the array, allowing a malicious actor to intentionally overflow the return value, leading to arbitrary heap writes. Because the resulting array is then passed to `execv()`, it is possible to leverage this attack to gain remote code execution on a victim machine. Note that a victim must first allow access to `git shell` as a login shell in order to be vulnerable to this attack. This problem is patched in versions 2.30.6, 2.31.5, 2.32.4, 2.33.5, 2.34.5, 2.35.5, 2.36.3, and 2.37.4 and users are advised to upgrade to the latest version. Disabling `git shell` access via remote logins is a viable short-term workaround.

Patch / fix

  • git-scm git 2.30.6, 2.31.5, 2.32.4, 2.33.5, 2.34.5, 2.35.5, 2.36.3, 2.37.4
  • apple xcode 14.1
  • git Debian 14, Debian 13, Debian 12 1:2.38.1-1

debian advisories DEBIAN-CVE-2022-39260

  • git Ubuntu 18.04 LTS 1:2.17.1-1ubuntu0.13
  • git Ubuntu 20.04 LTS 1:2.25.1-1ubuntu3.6
  • git Ubuntu 22.04 LTS 1:2.34.1-1ubuntu1.5
  • git Ubuntu Pro 16.04 LTS 1:2.7.4-0ubuntu1.10+esm3

ubuntu advisories UBUNTU-CVE-2022-39260

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • git RHEL 8 2.39.1-1.el8
  • gitk RHEL 8 2.39.1-1.el8
  • gitweb RHEL 8 2.39.1-1.el8
  • git-all RHEL 8 2.39.1-1.el8
  • git-gui RHEL 8 2.39.1-1.el8
  • git-svn RHEL 8 2.39.1-1.el8
  • git-core RHEL 8 2.39.1-1.el8
  • perl-Git RHEL 8 2.39.1-1.el8

red hat advisories RHSA-2024:0407RHSA-2023:2859RHSA-2023:2319

  • git SLES for SAP 15 SP2, SLES for SAP 15 SP1, SLES 15 SP2-LTSS +5 more 2.26.2-150000.47.1
  • git SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 +2 more 2.26.2-27.60.1
  • git SLE Module for Development Tools 15 SP4, SLE Module for Development Tools 15 SP3, SLE Module for Basesystem 15 SP4 +3 more 2.35.3-150300.10.18.1

suse advisories SUSE-SU-2023:0418-1SUSE-SU-2022:4271-1SUSE-SU-2022:3931-1

  • git openSUSE Tumbleweed 2.38.1-1.1

opensuse advisories openSUSE-SU-2024:12487-1

  • git AlmaLinux 8 2.39.1-1.el8
  • gitk AlmaLinux 8 2.39.1-1.el8
  • gitweb AlmaLinux 8 2.39.1-1.el8
  • git-all AlmaLinux 8 2.39.1-1.el8
  • git-gui AlmaLinux 8 2.39.1-1.el8
  • git-svn AlmaLinux 8 2.39.1-1.el8
  • git-core AlmaLinux 8 2.39.1-1.el8
  • perl-Git AlmaLinux 8 2.39.1-1.el8

almalinux advisories ALSA-2023:2859ALSA-2023:2319

  • git Alpine 3.13 2.30.6-r0
  • git Alpine 3.14 2.32.4-r0
  • git Alpine 3.15 2.34.5-r0
  • git Alpine 3.16 2.36.3-r0
  • git Alpine 3.24, Alpine 3.23, Alpine 3.22 +5 more 2.38.1-r0

alpine advisories ALPINE-CVE-2022-39260

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-39260 updated cvss 8.8

git: git shell function that splits command arguments can lead to arbitrary heap writes.

  • Red Hat Enterprise Linux 6 git, gitk, gitweb, git-all, git-cvs, git-gui, +6 more Red Hat Enterprise Linux 7 git, gitk, git-hg, git-p4, gitweb, git-all, +12 more Red Hat Software Collections rh-git227-git, rh-git227-gitk, rh-git227-git-p4, rh-git227-gitweb, rh-git227-git-all, rh-git227-git-cvs, +10 more
    affected: workaround, no fix planned “Disabling `git shell` access via remote logins is a viable short-term workaround.”
  • Red Hat Enterprise Linux AppStream (v. 8) git 2.39.1-1.el8, gitk 2.39.1-1.el8, gitweb 2.39.1-1.el8, git-all 2.39.1-1.el8, git-gui 2.39.1-1.el8, git-svn 2.39.1-1.el8, +8 more
    fixed: vendor fix “Disabling `git shell` access via remote logins is a viable short-term workaround.” RHSA-2023:2859
  • Red Hat Enterprise Linux AppStream (v. 9) git 2.39.1-1.el9, gitk 2.39.1-1.el9, gitweb 2.39.1-1.el9, git-all 2.39.1-1.el9, git-gui 2.39.1-1.el9, git-svn 2.39.1-1.el9, +8 more
    fixed: vendor fix “Disabling `git shell` access via remote logins is a viable short-term workaround.” RHSA-2023:2319
  • Red Hat Enterprise Linux AppStream EUS (v.8.6) git 2.31.8-1.el8_6, gitk 2.31.8-1.el8_6, gitweb 2.31.8-1.el8_6, git-all 2.31.8-1.el8_6, git-gui 2.31.8-1.el8_6, git-svn 2.31.8-1.el8_6, +8 more
    fixed: vendor fix “Disabling `git shell` access via remote logins is a viable short-term workaround.” RHSA-2024:0407

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-24-046-11 updated cvss 8.5

Siemens SCALANCE XCM-/XRM-300

  • Siemens SCALANCE XCH328 (6GK5328-4TS01-2EC2) <V2.4 Siemens SCALANCE XCM324 (6GK5324-8TS01-2AC2) <V2.4 Siemens SCALANCE XCM328 (6GK5328-4TS01-2AC2) <V2.4 Siemens SCALANCE XCM332 (6GK5332-0GA01-2AC2) <V2.4 Siemens SCALANCE XRH334 (24 V DC, 8xFO, CC) (6GK5334-2TS01-2ER3) <V2.4 Siemens SCALANCE XRM334 (2x230 V AC, 8xFO) (6GK5334-2TS01-4AR3) <V2.4
    +5 more products
    Siemens SCALANCE XRM334 (2x230 V AC, 12xFO) (6GK5334-3TS01-4AR3) <V2.4 Siemens SCALANCE XRM334 (24 V DC, 8xFO) (6GK5334-2TS01-2AR3) <V2.4 Siemens SCALANCE XRM334 (24 V DC, 12xFO) (6GK5334-3TS01-2AR3) <V2.4 Siemens SCALANCE XRM334 (230 V AC, 8xFO) (6GK5334-2TS01-3AR3) <V2.4 Siemens SCALANCE XRM334 (230 V AC, 12xFO) (6GK5334-3TS01-3AR3) <V2.4
    affected: fixed in V2.4 support.industry.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Exploit prediction

3.99% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

  • git git

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.