2.30.8

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