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Debian 11 tcpflow Critical DoS Out-of-Bounds Fix DLA-4478-1 CVE-2026-25061

debian lts
Calendar Grey February 10, 2026
Dist Debian Esm H88
Out-of-bounds write in tcpflow affects Debian 11. Upgrade recommended to protect against DoS and code execution.
A bug has been found in the tcpflow package: a wrong length check in the 802.11 management frame parser allows a crafted frame with a large TIM length to cause an out-of-bounds wri...

Summary

For Debian 11 bullseye, this problem has been fixed in version
1.5.2+repack1-1+deb11u1.

We recommend that you upgrade your tcpflow packages.

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

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
critical
Lowest
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Critical

Package: tcpflow
Version: 1.5.2+repack1-1+deb11u1
CVE ID: CVE-2026-25061
Debian Bug: #1126695

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