CVE-2022-41903
Git Integer Overflow in Commit Formatting Can Lead to Arbitrary Code Execution
Description
Git is distributed revision control system. `git log` can display commits in an arbitrary format using its `--format` specifiers. This functionality is also exposed to `git archive` via the `export-subst` gitattribute. When processing the padding operators, there is a 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 git archive via the export-subst mechanism, which expands format specifiers inside of files within the repository during a git archive. This integer overflow can result in arbitrary heap writes, which may result in arbitrary code execution. The problem has been patched in the versions published on 2023-01-17, going back to v2.30.7. Users are advised to upgrade. Users who are unable to upgrade should disable `git archive` in untrusted repositories. If you expose git archive via `git daemon`, disable it by running `git config --global daemon.uploadArch false`.
INFO
Published Date :
Jan. 17, 2023, 11:15 p.m.
Last Modified :
Dec. 27, 2023, 10:15 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2022-41903 has a 5 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2022-41903.
| URL | Resource |
|---|---|
| https://git-scm.com/book/en/v2/Customizing-Git-Git-Attributes#_export_subst | Vendor Advisory |
| https://git-scm.com/docs/pretty-formats#Documentation/pretty-formats.txt-emltltNgttruncltruncmtruncem | Vendor Advisory |
| https://github.com/git/git/commit/508386c6c5857b4faa2c3e491f422c98cc69ae76 | Patch Release Notes Third Party Advisory |
| https://github.com/git/git/security/advisories/GHSA-475x-2q3q-hvwq | Third Party Advisory |
| https://security.gentoo.org/glsa/202312-15 |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
zomotoa food app
None
demo
None
vulnerabilities, CVE-2022-41903, and CVE-2022-23521, that affect versions 2.39 and older. Git for Windows was also patched to address an additional, Windows-specific issue known as CVE-2022-41953.
Shell
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-41903 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-41903 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Dec. 27, 2023
Action Type Old Value New Value Added Reference GitHub, Inc. https://security.gentoo.org/glsa/202312-15 [No types assigned] -
Initial Analysis by [email protected]
Jan. 25, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://github.com/git/git/commit/508386c6c5857b4faa2c3e491f422c98cc69ae76 No Types Assigned https://github.com/git/git/commit/508386c6c5857b4faa2c3e491f422c98cc69ae76 Patch, Release Notes, Third Party Advisory Changed Reference Type https://github.com/git/git/security/advisories/GHSA-475x-2q3q-hvwq No Types Assigned https://github.com/git/git/security/advisories/GHSA-475x-2q3q-hvwq Third Party Advisory Changed Reference Type https://git-scm.com/book/en/v2/Customizing-Git-Git-Attributes#_export_subst No Types Assigned https://git-scm.com/book/en/v2/Customizing-Git-Git-Attributes#_export_subst Vendor Advisory Changed Reference Type https://git-scm.com/docs/pretty-formats#Documentation/pretty-formats.txt-emltltNgttruncltruncmtruncem No Types Assigned https://git-scm.com/docs/pretty-formats#Documentation/pretty-formats.txt-emltltNgttruncltruncmtruncem Vendor Advisory Added CPE Configuration OR *cpe:2.3:a:git-scm:git:*:*:*:*:*:*:*:* versions up to (including) 2.30.6 *cpe:2.3:a:git-scm:git:*:*:*:*:*:*:*:* versions from (including) 2.31.0 up to (including) 2.31.5 *cpe:2.3:a:git-scm:git:*:*:*:*:*:*:*:* versions from (including) 2.32.0 up to (including) 2.32.4 *cpe:2.3:a:git-scm:git:*:*:*:*:*:*:*:* versions from (including) 2.33.0 up to (including) 2.33.5 *cpe:2.3:a:git-scm:git:*:*:*:*:*:*:*:* versions from (including) 2.34.0 up to (including) 2.34.5 *cpe:2.3:a:git-scm:git:*:*:*:*:*:*:*:* versions from (including) 2.35.0 up to (including) 2.35.5 *cpe:2.3:a:git-scm:git:*:*:*:*:*:*:*:* versions from (including) 2.36.0 up to (including) 2.36.3 *cpe:2.3:a:git-scm:git:*:*:*:*:*:*:*:* versions from (including) 2.37.0 up to (including) 2.37.4 *cpe:2.3:a:git-scm:git:*:*:*:*:*:*:*:* versions from (including) 2.38.0 up to (including) 2.38.2 *cpe:2.3:a:git-scm:git:2.39.0:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-41903 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-41903
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.52 }} 0.01%
score
0.77191
percentile