CVE-2025-2174 - libzvbi conv.c vbi_strndup_iconv_ucs2 integer overflow

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MEDIUM

libzvbi conv.c vbi_strndup_iconv_ucs2 integer overflow

Published Mar 11, 2025

6.9

MEDIUM

CVSS 4.0

EPSS 0.83%

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.

Affected products

Vendor n/a Product Libzvbi Default
n/a
- Version
  0.2.0
  Status
  affected
  Constraints
  -
- Version
  0.2.1
  Status
  affected
  Constraints
  -
- Version
  0.2.10
  Status
  affected
  Constraints
  -
- Version
  0.2.11
  Status
  affected
  Constraints
  -
- Version
  0.2.12
  Status
  affected
  Constraints
  -
- Version
  0.2.13
  Status
  affected
  Constraints
  -
- Version
  0.2.14
  Status
  affected
  Constraints
  -
- Version
  0.2.15
  Status
  affected
  Constraints
  -
- Version
  0.2.16
  Status
  affected
  Constraints
  -
- Version
  0.2.17
  Status
  affected
  Constraints
  -
- Version
  0.2.18
  Status
  affected
  Constraints
  -
- Version
  0.2.19
  Status
  affected
  Constraints
  -
- Version
  0.2.2
  Status
  affected
  Constraints
  -
- Version
  0.2.20
  Status
  affected
  Constraints
  -
- Version
  0.2.21
  Status
  affected
  Constraints
  -
- Version
  0.2.22
  Status
  affected
  Constraints
  -
- Version
  0.2.23
  Status
  affected
  Constraints
  -
- Version
  0.2.24
  Status
  affected
  Constraints
  -
- Version
  0.2.25
  Status
  affected
  Constraints
  -
- Version
  0.2.26
  Status
  affected
  Constraints
  -
- Version
  0.2.27
  Status
  affected
  Constraints
  -
- Version
  0.2.28
  Status
  affected
  Constraints
  -
- Version
  0.2.29
  Status
  affected
  Constraints
  -
- Version
  0.2.3
  Status
  affected
  Constraints
  -
- Version
  0.2.30
  Status
  affected
  Constraints
  -
- Version
  0.2.31
  Status
  affected
  Constraints
  -
- Version
  0.2.32
  Status
  affected
  Constraints
  -
- Version
  0.2.33
  Status
  affected
  Constraints
  -
- Version
  0.2.34
  Status
  affected
  Constraints
  -
- Version
  0.2.35
  Status
  affected
  Constraints
  -
- Version
  0.2.36
  Status
  affected
  Constraints
  -
- Version
  0.2.37
  Status
  affected
  Constraints
  -
- Version
  0.2.38
  Status
  affected
  Constraints
  -
- Version
  0.2.39
  Status
  affected
  Constraints
  -
- Version
  0.2.4
  Status
  affected
  Constraints
  -
- Version
  0.2.40
  Status
  affected
  Constraints
  -
- Version
  0.2.41
  Status
  affected
  Constraints
  -
- Version
  0.2.42
  Status
  affected
  Constraints
  -
- Version
  0.2.43
  Status
  affected
  Constraints
  -
- Version
  0.2.5
  Status
  affected
  Constraints
  -
- Version
  0.2.6
  Status
  affected
  Constraints
  -
- Version
  0.2.7
  Status
  affected
  Constraints
  -
- Version
  0.2.8
  Status
  affected
  Constraints
  -
- Version
  0.2.9
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

n/a

Libzvbi

n/a

Version	Status	Constraints
0.2.0	affected	-
0.2.1	affected	-
0.2.10	affected	-
0.2.11	affected	-
0.2.12	affected	-
0.2.13	affected	-
0.2.14	affected	-
0.2.15	affected	-
0.2.16	affected	-
0.2.17	affected	-
0.2.18	affected	-
0.2.19	affected	-
0.2.2	affected	-
0.2.20	affected	-
0.2.21	affected	-
0.2.22	affected	-
0.2.23	affected	-
0.2.24	affected	-
0.2.25	affected	-
0.2.26	affected	-
0.2.27	affected	-
0.2.28	affected	-
0.2.29	affected	-
0.2.3	affected	-
0.2.30	affected	-
0.2.31	affected	-
0.2.32	affected	-
0.2.33	affected	-
0.2.34	affected	-
0.2.35	affected	-
0.2.36	affected	-
0.2.37	affected	-
0.2.38	affected	-
0.2.39	affected	-
0.2.4	affected	-
0.2.40	affected	-
0.2.41	affected	-
0.2.42	affected	-
0.2.43	affected	-
0.2.5	affected	-
0.2.6	affected	-
0.2.7	affected	-
0.2.8	affected	-
0.2.9	affected	-

Remediation

No remediation recorded yet.

Weaknesses (2)

CWE-189

CWE-190

Integer Overflow

References (6)

https://github.com/zapping-vbi/zvbi/commit/ca1672134b3e2962cd392212c73f44f8f4cb489f
patch
https://github.com/zapping-vbi/zvbi/releases/tag/v0.2.44
patchRelease Notes
https://github.com/zapping-vbi/zvbi/security/advisories/GHSA-g7cg-7gw9-v8cf
relatedPatchVendor Advisory
https://vuldb.com/?ctiid.299203
signaturepermissions-requiredPermissions RequiredVDB Entry
https://vuldb.com/?id.299203
vdb-entrytechnical-descriptionThird Party AdvisoryVDB Entry
https://vuldb.com/?submit.512800
third-party-advisoryThird Party AdvisoryVDB Entry

Link	Providers	Tags
https://github.com/zapping-vbi/zvbi/commit/ca1672134b3e2962cd392212c73f44f8f4cb489f		patch
https://github.com/zapping-vbi/zvbi/releases/tag/v0.2.44		patchRelease Notes
https://github.com/zapping-vbi/zvbi/security/advisories/GHSA-g7cg-7gw9-v8cf		relatedPatchVendor Advisory
https://vuldb.com/?ctiid.299203		signaturepermissions-requiredPermissions RequiredVDB Entry
https://vuldb.com/?id.299203		vdb-entrytechnical-descriptionThird Party AdvisoryVDB Entry
https://vuldb.com/?submit.512800		third-party-advisoryThird Party AdvisoryVDB Entry