Debian: DSA-5497-2 Critical Update for Libwebp Buffer Overflow Issue

A buffer overflow in parsing WebP images may result in the execution of
arbitrary code.

For the oldstable distribution (bullseye), this problem has been fixed in
version 0.6.1-2.1+deb11u2.

We recommend that you upgrade your libwebp packages.

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

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/