Oracle Linux: CVE-2022-41903: ELSA-2023-0610: git security update (IMPORTANT) (Multiple Advisories)

Oracle Linux: CVE-2022-41903: ELSA-2023-0610:git security update (IMPORTANT) (Multiple Advisories)

Severity

10

CVSS

(AV:N/AC:L/Au:N/C:C/I:C/A:C)

Published

01/17/2023

Created

02/08/2023

Added

02/07/2023

Modified

01/07/2025

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`. A flaw was found in Git, a distributed revision control system. This issue occurs due to an 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 the git archive via the export-subst mechanism, which expands format specifiers inside files within the repository during a git archive. This integer overflow can result in arbitrary heap writes, which may allow arbitrary code execution.

Solution(s)

• oracle-linux-upgrade-emacs-git
• oracle-linux-upgrade-emacs-git-el
• oracle-linux-upgrade-git
• oracle-linux-upgrade-git-all
• oracle-linux-upgrade-git-bzr
• oracle-linux-upgrade-git-core
• oracle-linux-upgrade-git-core-doc
• oracle-linux-upgrade-git-credential-libsecret
• oracle-linux-upgrade-git-cvs
• oracle-linux-upgrade-git-daemon
• oracle-linux-upgrade-git-email
• oracle-linux-upgrade-git-gnome-keyring
• oracle-linux-upgrade-git-gui
• oracle-linux-upgrade-git-hg
• oracle-linux-upgrade-git-instaweb
• oracle-linux-upgrade-gitk
• oracle-linux-upgrade-git-p4
• oracle-linux-upgrade-git-subtree
• oracle-linux-upgrade-git-svn
• oracle-linux-upgrade-gitweb
• oracle-linux-upgrade-perl-git
• oracle-linux-upgrade-perl-git-svn

References

• https://attackerkb.com/topics/cve-2022-41903
• CVE - 2022-41903
• ELSA-2023-0610
• ELSA-2023-0611
• ELSA-2023-0978