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.