Mageia 8 MGASA-2023-0066 Critical: Git Data Exfiltration Risk
mageia
February 27, 2023
Using a specially-crafted repository, Git can be tricked into using its local clone optimization even when using a non-local transport
Summary
Using a specially-crafted repository, Git can be tricked into using its local
clone optimization even when using a non-local transport. Though Git will
abort local clones whose source $GIT_DIR/objects directory contains symbolic
links, the objects directory itself may still be a symbolic link. These two
may be combined to include arbitrary files based on known paths on the
victim's filesystem within the malicious repository's working copy, allowing
for data exfiltration in a similar manner as CVE-2022-39253 (CVE-2023-22490).
By feeding a crafted input to "git apply", a path outside the working tree can
be overwritten as the user who is running "git apply" (CVE-2023-23946).
References
- https://bugs.mageia.org/show_bug.cgi?id=31553
-
- https://lore.kernel.org/git/004a01d940a4$289e56a0$79db03e0$@nexbridge.com/T/
- https://www.cve.org/CVERecord?id=CVE-2023-22490
- https://www.cve.org/CVERecord?id=CVE-2023-23946
Topics Covered
Resolution
SRPMS
- 8/core/git-2.30.8-1.mga8
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Publication date: 27 Feb 2023
URL: https://advisories.mageia.org/MGASA-2023-0066.html
Type: security
CVE: CVE-2023-22490,
CVE-2023-23946
Topics Covered
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