---
cve: "CVE-2022-41903"
severity: "CRITICAL"
cvss: 9.8
epss: "44.3%"
vendor: "git"
kev: false
exploited: false
published: "2023-01-17 23:15:15"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-05T22:07:31+02:00"
---

# CVE-2022-41903

> 9.8 CRITICAL · 🧪 PoC

## Beschreibung

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`.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- 508386c6c5857b4faa2c3e491f422c98cc69ae76 (Commit)

## Referenzen

- <https://github.com/git/git/security/advisories/GHSA-475x-2q3q-hvwq>
- <https://github.com/git/git/commit/508386c6c5857b4faa2c3e491f422c98cc69ae76>
- <https://git-scm.com/book/en/v2/Customizing-Git-Git-Attributes#_export_subst>
- <https://git-scm.com/docs/pretty-formats#Documentation/pretty-formats.txt-emltltNgttruncltruncmtruncem>
- <https://security.gentoo.org/glsa/202312-15>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2022-41903) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_