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Alerts This Week
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Debian 11 DLA-4536-1 tiff Important Heap Overflow Denial Of Service

debian lts
Calendar Grey April 17, 2026
Dist Debian Esm H88
Heap overflow vulnerability in tiff library leads to DoS. Upgrade recommended for Debian 11 users to mitigate risks.
Quang Luong discovered a heap overflow in the libtiff library, which may result in denial of service or the execution of arbitrary code if malformed image files are processed
Topics%20covered

Topics Covered

security advisory denial of service debian important heap overflow TIFF

Summary

For Debian 11 bullseye, this problem has been fixed in version
4.2.0-1+deb11u8.

We recommend that you upgrade your tiff packages.

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

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


Severity
important
Lowest
Low
Medium
High
Critical

Package: tiff
Version: 4.2.0-1+deb11u8
CVE ID: CVE-2026-4775

Topics%20covered

Topics Covered

security advisory denial of service debian important heap overflow TIFF

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