CVE-2022-41903

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`.

• git-scm git (<= 2.30.6) • git-scm git (>= 2.31.0 <= 2.31.5) • git-scm git (>= 2.32.0 <= 2.32.4) • git-scm git (>= 2.33.0 <= 2.33.5) • git-scm git (>= 2.34.0 <= 2.34.5) • git-scm git (>= 2.35.0 <= 2.35.5) • git-scm git (>= 2.36.0 <= 2.36.3) • git-scm git (>= 2.37.0 <= 2.37.4) • git-scm git (>= 2.38.0 <= 2.38.2) • git-scm git 2.39.0