Debian has published two Debian Security Advisories, one for netty for both Debian 12/13 and another for imagemagick for Debian 11 LTS. A series of security updates are announced with this advisory which includes patches for multiple CVEs (Common Vulnerabilities and Exposures) across different distributions. The netty update addresses vulnerabilities that allow denial-of-service attacks, request smuggling, SMTP command injection, and allocation of resources without limits or throttling.

[DSA 6160-1] netty security update
[DLA 4497-1] imagemagick security update

[SECURITY] [DSA 6160-1] netty security update

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Debian Security Advisory DSA-6160-1 security@debian.org
https://www.debian.org/security/ Markus Koschany
March 11, 2026 https://www.debian.org/security/faq
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Package : netty
CVE ID : CVE-2025-55163 CVE-2025-58056 CVE-2025-58057 CVE-2025-59419
CVE-2025-67735 CVE-2024-29025
Debian Bug : 1068110 1111105 1113995 1113994 1118282 1123606

Several security vulnerabilities have been discovered in Netty, a Java NIO
client/server socket framework. It was found that Netty was vulnerable to the
MadeYouReset DDoS attack, a logical vulnerability in the HTTP/2 protocol
itself and programming errors which enabled request smuggling attacks.
Additionally Netty contained an SMTP command injection vulnerability due to
insufficient input validation potentially allowing remote attackers to forge
arbitrary emails from trusted servers.

The security update for bookworm also contains the fix for CVE-2024-29025.
Julien Viet discovered that Netty was vulnerable to allocation of resources
without limits or throttling due to the accumulation of data in the
HttpPostRequestDecoder. This would allow an attacker to cause a denial of
service.

For the oldstable distribution (bookworm), these problems have been fixed
in version 1:4.1.48-7+deb12u2.

For the stable distribution (trixie), these problems have been fixed in
version 1:4.1.48-10+deb13u1.

We recommend that you upgrade your netty packages.

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

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/

[SECURITY] [DLA 4497-1] imagemagick security update

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Debian LTS Advisory DLA-4497-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Bastien Roucari??s
March 11, 2026 https://wiki.debian.org/LTS
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Package : imagemagick
Version : 8:6.9.11.60+dfsg-1.3+deb11u10
CVE ID : CVE-2026-24481 CVE-2026-24484 CVE-2026-24485 CVE-2026-25576
CVE-2026-25638 CVE-2026-25795 CVE-2026-25796 CVE-2026-25797
CVE-2026-25798 CVE-2026-25799 CVE-2026-25897 CVE-2026-25898
CVE-2026-25965 CVE-2026-25968 CVE-2026-25970 CVE-2026-25982
CVE-2026-25983 CVE-2026-25986 CVE-2026-25987 CVE-2026-25988
CVE-2026-25989 CVE-2026-26066 CVE-2026-26283 CVE-2026-27798
CVE-2026-27799

Multiple security vulnerabilities were discovered in imagemagick, a
software suite used for editing and manipulating digital images, which
could lead to information leaks, bypass of security policies, denial of
service or arbitrary code execution.

For Debian 11 bullseye, these problems have been fixed in version
8:6.9.11.60+dfsg-1.3+deb11u10.

We recommend that you upgrade your imagemagick packages.

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

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