From https://www.openwall.com/lists/oss-security/2022/10/18/5: """ The Git project released new versions on 2022-10-18, addressing CVEs 2022-39253, 2022-39260. We highly recommend upgrading to one of the fixed versions below: v2.30.6 v2.31.5 v2.32.4 v2.33.5 v2.34.5 v2.35.5 v2.36.3 v2.37.4 v2.38.1 If you are on the unreleased development track, the same fix is already included, so you do not have to do anything. https://lore.kernel.org/git/xmqq4jw1uku5.fsf@gitster.g/T/#u The relevant information from the most recent release notes pertaining to the above two CVEs are as follows: CVE-2022-39253: When relying on the `--local` clone optimization, Git dereferences symbolic links in the source repository before creating hardlinks (or copies) of the dereferenced link in the destination repository. This can lead to surprising behavior where arbitrary files are present in a repository's `$GIT_DIR` when cloning from a malicious repository. Git will no longer dereference symbolic links via the `--local` clone mechanism, and will instead refuse to clone repositories that have symbolic links present in the `$GIT_DIR/objects` directory. Additionally, the value of `protocol.file.allow` is changed to be "user" by default. CVE-2022-39260: An overly-long command string given to `git shell` can result in overflow in `split_cmdline()`, leading to arbitrary heap writes and remote code execution when `git shell` is exposed and the directory `$HOME/git-shell-commands` exists. `git shell` is taught to refuse interactive commands that are longer than 4MiB in size. `split_cmdline()` is hardened to reject inputs larger than 2GiB. Credit for finding CVE-2022-39253 goes to Cory Snider of Mirantis. The fix was authored by Taylor Blau, with help from Johannes Schindelin. Credit for finding CVE-2022-39260 goes to Kevin Backhouse of GitHub. The fix was authored by Kevin Backhouse, Jeff King, and Taylor Blau. """
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=c16537f9b0375835920b82c9f506456dd3d47f44 commit c16537f9b0375835920b82c9f506456dd3d47f44 Author: Robin H. Johnson <robbat2@gentoo.org> AuthorDate: 2022-10-18 17:55:44 +0000 Commit: Robin H. Johnson <robbat2@gentoo.org> CommitDate: 2022-10-18 17:57:39 +0000 dev-vcs/git: bump for security: CVE 2022-39253, CVE 2022-39260 Signed-off-by: Robin H. Johnson <robbat2@gentoo.org> Bug: https://bugs.gentoo.org/show_bug.cgi?id=877565 dev-vcs/git/Manifest | 9 + dev-vcs/git/git-2.35.5.ebuild | 641 +++++++++++++++++++++++++++++++++++++++++ dev-vcs/git/git-2.37.4.ebuild | 647 +++++++++++++++++++++++++++++++++++++++++ dev-vcs/git/git-2.38.1.ebuild | 657 ++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 1954 insertions(+)
Hmm, howcome some of these fixed versions got dropped just now, after being stabilized for over a week? Nuked the wrong ones by mistake? Seems like 2.35.5 and 2.37.4 should have been kept while 2.37.3 should have been dropped, unless I'm missing something…? https://gitweb.gentoo.org/repo/gentoo.git/commit/dev-vcs/git?id=e12290707327a6489359e967486570d4b6b0307a
(In reply to Michael Moon from comment #2) > Hmm, howcome some of these fixed versions got dropped just now, after being > stabilized for over a week? > > Nuked the wrong ones by mistake? Seems like 2.35.5 and 2.37.4 should have > been kept while 2.37.3 should have been dropped, unless I'm missing > something…? > > https://gitweb.gentoo.org/repo/gentoo.git/commit/dev-vcs/ > git?id=e12290707327a6489359e967486570d4b6b0307a Fixed just a moment ago: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=128f0d0b967059c5564bb96efee2586b84c2f83d
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/data/glsa.git/commit/?id=2c2ec5453e20060d4ec1717825d2874f0e663f91 commit 2c2ec5453e20060d4ec1717825d2874f0e663f91 Author: GLSAMaker <glsamaker@gentoo.org> AuthorDate: 2023-12-27 07:49:08 +0000 Commit: Hans de Graaff <graaff@gentoo.org> CommitDate: 2023-12-27 07:49:42 +0000 [ GLSA 202312-15 ] Git: Multiple Vulnerabilities Bug: https://bugs.gentoo.org/838127 Bug: https://bugs.gentoo.org/857831 Bug: https://bugs.gentoo.org/877565 Bug: https://bugs.gentoo.org/891221 Bug: https://bugs.gentoo.org/894472 Bug: https://bugs.gentoo.org/905088 Signed-off-by: GLSAMaker <glsamaker@gentoo.org> Signed-off-by: Hans de Graaff <graaff@gentoo.org> glsa-202312-15.xml | 57 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+)
