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Debian 11 lrzip Important Use After Free Fix DLA-4567-1 CVE-2025-15570

debian lts
Calendar Grey May 6, 2026
Dist Debian Esm H88
A use-after-free issue in lrzip on Debian 11 bullseye has been fixed. Upgrade to prevent potential exploits.
It was discovered that there was a potential use-after-free issue in the lrzip compression/decompression program
Topics%20covered

Topics Covered

security advisory debian important use-after-free compression lrzip

Summary

For Debian 11 bullseye, this problem has been fixed in version
0.641-1+deb11u2.

We recommend that you upgrade your lrzip packages.

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

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: lrzip
Version: 0.641-1+deb11u2
CVE ID: CVE-2025-15570
Debian Bug: 1128069

Topics%20covered

Topics Covered

security advisory debian important use-after-free compression lrzip

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