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Debian 11 zvbi Important Integer Overflow Advisory DLA-4449-1 CVE-2025-2173

debian lts
Calendar Grey January 24, 2026
Dist Debian Esm H88
Several issues in zvbi, including integer overflows and uninitialized pointer, require immediate security update for Debian.
Several issues have been found in zvbi, a Vertical Blanking Interval decoder
Topics%20covered

Topics Covered

security advisory debian important integer overflow uninitialized pointer zvbi

Summary

Several issues have been found in zvbi, a Vertical Blanking Interval
decoder.
CVE-2025-2173 is related to an uninitialized pointer in src/conv.c::
vbi_strndup_iconv_ucs2()
The other issues are related to integer overflows in several functions
distributed all over the code.


For Debian 11 bullseye, these problems have been fixed in version
0.2.35-18+deb11u1.

We recommend that you upgrade your zvbi packages.

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

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: zvbi
Version: 0.2.35-18+deb11u1
CVE ID: CVE-2025-2173 CVE-2025-2174 CVE-2025-2175 CVE-2025-2176

Topics%20covered

Topics Covered

security advisory debian important integer overflow uninitialized pointer zvbi

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