A pillow security update has been released for Debian GNU/Linux 10 and 11 to address multiple security issues.

DSA 5053-1: pillow security update

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Debian Security Advisory DSA-5053-1 security@debian.org
  https://www.debian.org/security/ Moritz Muehlenhoff
January 21, 2022   https://www.debian.org/security/faq
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Package : pillow
CVE ID : CVE-2022-22815 CVE-2022-22816 CVE-2022-22817

Multiple security issues were discovered in Pillow, a Python imaging
library, which could result in denial of service and potentially
the execution of arbitrary code if malformed images are processed.

For the oldstable distribution (buster), these problems have been fixed
in version 5.4.1-2+deb10u3.

For the stable distribution (bullseye), these problems have been fixed in
version 8.1.2+dfsg-0.3+deb11u1.

We recommend that you upgrade your pillow packages.

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

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/