Debian: DSA-5619-1 Critical Libgit2 Denial of Service Threat

Two vulnerabilities were discovered in libgit2, a low-level Git library,
which may result in denial of service or potentially the execution of
arbitrary code.

For the oldstable distribution (bullseye), this problem has been fixed
in version 1.1.0+dfsg.1-4+deb11u2.

For the stable distribution (bookworm), this problem has been fixed in
version 1.5.1+ds-1+deb12u1.

We recommend that you upgrade your libgit2 packages.

For the detailed security status of libgit2 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/libgit2

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/