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Debian Bookworm tiff Critical Heap Overflow DoS CVE-2026-4775

debian
Calendar Grey April 8, 2026
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LibTIFF heap overflow vulnerability in Debian allows potential denial of service and arbitrary code execution. Update required.
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 critical debian heap overflow libtiff

Summary

For the oldstable distribution (bookworm), this problem has been fixed
in version 4.5.0-6+deb12u4.

For the stable distribution (trixie), this problem has been fixed in
version 4.7.0-3+deb13u2.

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



Severity
critical
Lowest
Low
Medium
High
Critical

Package: tiff
CVE ID: CVE-2026-4775

Topics%20covered

Topics Covered

security advisory denial of service critical debian heap overflow libtiff

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