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CVE-2022-39260

Status Candidate

Overview

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.

Related Files

Gentoo Linux Security Advisory 202312-15
Posted Dec 27, 2023
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202312-15 - Several vulnerabilities have been found in Git, the worst of which could lead to remote code execution. Versions greater than or equal to 2.39.3 are affected.

tags | advisory, remote, vulnerability, code execution
systems | linux, gentoo
advisories | CVE-2022-23521, CVE-2022-24765, CVE-2022-29187, CVE-2022-39253, CVE-2022-39260, CVE-2022-41903, CVE-2023-22490, CVE-2023-23946, CVE-2023-25652, CVE-2023-25815, CVE-2023-29007
SHA-256 | 40da540c38bd337ca3d0a368d288902ef88dd450d5f78bccef5cef2ef2758381
Red Hat Security Advisory 2023-2859-01
Posted May 16, 2023
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2023-2859-01 - Git is a distributed revision control system with a decentralized architecture. As opposed to centralized version control systems with a client-server model, Git ensures that each working copy of a Git repository is an exact copy with complete revision history. This not only allows the user to work on and contribute to projects without the need to have permission to push the changes to their official repositories, but also makes it possible for the user to work with no network connection. Issues addressed include a bypass vulnerability.

tags | advisory, bypass
systems | linux, redhat
advisories | CVE-2022-24765, CVE-2022-29187, CVE-2022-39253, CVE-2022-39260
SHA-256 | 5972862db2b99cd76fbd52618d485ef63597c8d8a998aba739b194b445e06598
Red Hat Security Advisory 2023-2319-01
Posted May 9, 2023
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2023-2319-01 - Git is a distributed revision control system with a decentralized architecture. As opposed to centralized version control systems with a client-server model, Git ensures that each working copy of a Git repository is an exact copy with complete revision history. This not only allows the user to work on and contribute to projects without the need to have permission to push the changes to their official repositories, but also makes it possible for the user to work with no network connection. Issues addressed include a bypass vulnerability.

tags | advisory, bypass
systems | linux, redhat
advisories | CVE-2022-24765, CVE-2022-29187, CVE-2022-39253, CVE-2022-39260
SHA-256 | 2098c73a1f8398640e4aea36237386bb82d33a6b03b5e3b2b5cb62059184e459
Debian Security Advisory 5332-1
Posted Jan 30, 2023
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5332-1 - Multiple issues were found in Git, a distributed revision control system. An attacker may trigger remote code execution, cause local users into executing arbitrary commands, leak information from the local filesystem, and bypass restricted shell.

tags | advisory, remote, arbitrary, shell, local, code execution
systems | linux, debian
advisories | CVE-2022-23521, CVE-2022-24765, CVE-2022-29187, CVE-2022-39253, CVE-2022-39260, CVE-2022-41903
SHA-256 | da3283ba137fd88f874430e108ec655e6a4a13b1797054b92dadf3a00e03641d
Ubuntu Security Notice USN-5686-3
Posted Nov 21, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5686-3 - USN-5686-1 fixed vulnerabilities in Git. This update provides the corresponding updates for Ubuntu 22.10. Cory Snider discovered that Git incorrectly handled certain symbolic links. An attacker could possibly use this issue to cause an unexpected behaviour.

tags | advisory, vulnerability
systems | linux, ubuntu
advisories | CVE-2022-39253, CVE-2022-39260
SHA-256 | ee6b56d4f6035bcabf57319cafc39810937a6a150e50bbd6feb67edb93813e2e
Ubuntu Security Notice USN-5686-2
Posted Nov 18, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5686-2 - USN-5686-1 fixed several vulnerabilities in Git. This update provides the corresponding fix for CVE-2022-39260 on Ubuntu 16.04 ESM. Kevin Backhouse discovered that Git incorrectly handled certain command strings. An attacker could possibly use this issue to cause a crash or arbitrary code execution.

tags | advisory, arbitrary, vulnerability, code execution
systems | linux, ubuntu
advisories | CVE-2022-39260
SHA-256 | 7c55176af95c8d316fd0b090742e85481704c14d13826cce6e070cdc7d1c71f0
Apple Security Advisory 2022-11-01-1
Posted Nov 8, 2022
Authored by Apple | Site apple.com

Apple Security Advisory 2022-11-01-1 - Xcode 14.1 addresses code execution vulnerabilities.

tags | advisory, vulnerability, code execution
systems | apple
advisories | CVE-2022-29187, CVE-2022-39253, CVE-2022-39260, CVE-2022-42797
SHA-256 | 283ad9d8171efece3850247f493b6534fc49e5c0a1da52d7fc3564099bd20c39
Ubuntu Security Notice USN-5686-1
Posted Oct 18, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5686-1 - Cory Snider discovered that Git incorrectly handled certain symbolic links. An attacker could possibly use this issue to cause an unexpected behaviour. Kevin Backhouse discovered that Git incorrectly handled certain command strings. An attacker could possibly use this issue to arbitrary code execution.

tags | advisory, arbitrary, code execution
systems | linux, ubuntu
advisories | CVE-2022-39253, CVE-2022-39260
SHA-256 | c699a9bd555fb4922c18021b0fbfc11f65ddedf4fd6d1d4bb837d79ba1110921
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