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Git v2.30.8 Release Notes
=========================
This release addresses the security issues CVE-2023-22490 and
CVE-2023-23946.
Fixes since v2.30.7
-------------------
* CVE-2023-22490:
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 (c.f., CVE-2022-39253), 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-2023-23946:
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".
* A mismatched type in `attr.c::read_attr_from_index()` which could
cause Git to errantly reject attributes on Windows and 32-bit Linux
has been corrected.
Credit for finding CVE-2023-22490 goes to yvvdwf, and the fix was
developed by Taylor Blau, with additional help from others on the
Git security mailing list.
Credit for finding CVE-2023-23946 goes to Joern Schneeweisz, and the
fix was developed by Patrick Steinhardt.
Johannes Schindelin (1):
attr: adjust a mismatched data type
Patrick Steinhardt (1):
apply: fix writing behind newly created symbolic links
Taylor Blau (3):
t5619: demonstrate clone_local() with ambiguous transport
clone: delay picking a transport until after get_repo_path()
dir-iterator: prevent top-level symlinks without FOLLOW_SYMLINKS