ELA-1620-1 zvbi security update

uninitialized pointer and integer overflows

2026-01-25
Packagezvbi
Version0.2.35-13+deb9u1 (stretch), 0.2.35-16+deb10u1 (buster)
Related CVEs CVE-2025-2173 CVE-2025-2174 CVE-2025-2175 CVE-2025-2176 CVE-2025-2177


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 10 buster, these problems have been fixed in version 0.2.35-16+deb10u1.

For Debian 9 stretch, these problems have been fixed in version 0.2.35-13+deb9u1.

We recommend that you upgrade your zvbi packages.

Further information about Extended LTS security advisories can be found in the dedicated section of our website.