CVE-2025-2174

libzvbi conv.c vbi_strndup_iconv_ucs2 integer overflow

State: Published
Severity: 6.9 Medium
Published: Mar 11, 2025
Updated: Mar 11, 2025
Reserved: Mar 10, 2025

Description

A vulnerability was found in libzvbi up to 0.2.43. It has been declared as problematic. Affected by this vulnerability is the function vbi_strndup_iconv_ucs2 of the file src/conv.c. The manipulation of the argument src_length leads to integer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 0.2.44 is able to address this issue. The patch is named ca1672134b3e2962cd392212c73f44f8f4cb489f. It is recommended to upgrade the affected component. The code maintainer was informed beforehand about the issues. She reacted very fast and highly professional.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N	VulDB
3.1	5.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L	VulDB
3.0	5.3 Medium	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L	VulDB
2.0	5.0 Medium	AV:N/AC:L/Au:N/C:N/I:N/A:P	VulDB

Weaknesses

CWE-190 Integer Overflow
CWE-189 Numeric Error

Affected Products

Product	Versions
libzvbin/a	0.2.0Affected 0.2.1Affected 0.2.2Affected 0.2.3Affected 0.2.4Affected 0.2.5Affected 0.2.6Affected 0.2.7Affected 0.2.8Affected 0.2.9Affected 0.2.10Affected 0.2.11Affected 0.2.12Affected 0.2.13Affected 0.2.14Affected 0.2.15Affected 0.2.16Affected 0.2.17Affected 0.2.18Affected 0.2.19Affected 0.2.20Affected 0.2.21Affected 0.2.22Affected 0.2.23Affected 0.2.24Affected and 19 more versions

References

VDB-299203 | libzvbi conv.c vbi_strndup_iconv_ucs2 integer overflowvdb-entrytechnical-description
VDB-299203 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
Submit #512800 | Open Source libzvbi 0.2.43 Integer Overflow -> Heap Overflowthird-party-advisory
https://github.com/zapping-vbi/zvbi/security/advisories/GHSA-g7cg-7gw9-v8cfrelated
https://github.com/zapping-vbi/zvbi/commit/ca1672134b3e2962cd392212c73f44f8f4cb489fpatch
https://github.com/zapping-vbi/zvbi/releases/tag/v0.2.44patch

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