libgit2 is a portable, pure C implementation of the Git core methods provided as a re-entrant linkable library with a solid API.
Multiple vulnerabilities have been discovered in libgit2. Please review the CVE identifiers referenced below for details.
An attacker could possibly overwrite arbitrary paths, execute arbitrary code, and overwrite files in the .git directory.
There is no known workaround at this time.
All libgit2 users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-libs/libgit2-0.28.4"