CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се по мрежата, без особени условия, без вход и без действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката може да се автоматизира
Описание
Оригинално описание
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`.
Засегнати продукти
- git git: < 2.30.7; >= 2.31.0, < 2.31.6; >= 2.32.0, < 2.32.5; >= 2.33.0, < 2.33.6; >= 2.34.0, < 2.34.6; >= 2.35.0, < 2.35.6; >= 2.36.0, < 2.36.4; >= 2.37.0, < 2.37.5; >= 2.38.0, < 2.38.3; = 2.39.0
Вид слабост
История
- 17 януари 2023 Публикувано
Други уязвимости в git git
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2022-41903
- https://nvd.nist.gov/vuln/detail/CVE-2022-41903
- 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