CVE-2025-2176 - libzvbi io-sim.c vbi_capture_sim_load_caption integer overflow

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MEDIUM

libzvbi io-sim.c vbi_capture_sim_load_caption integer overflow

Published Mar 11, 2025

6.9

MEDIUM

CVSS 4.0

EPSS 0.67%

Description

A vulnerability classified as critical has been found in libzvbi up to 0.2.43. This affects the function vbi_capture_sim_load_caption of the file src/io-sim.c. The manipulation leads to integer overflow. It is possible to initiate the attack 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 identifier of the patch is 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
relatedThird Party Advisory
https://vuldb.com/?ctiid.299205
signaturepermissions-requiredPermissions RequiredVDB Entry
https://vuldb.com/?id.299205
vdb-entrytechnical-descriptionThird Party AdvisoryVDB Entry
https://vuldb.com/?submit.512802
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		relatedThird Party Advisory
https://vuldb.com/?ctiid.299205		signaturepermissions-requiredPermissions RequiredVDB Entry
https://vuldb.com/?id.299205		vdb-entrytechnical-descriptionThird Party AdvisoryVDB Entry
https://vuldb.com/?submit.512802		third-party-advisoryThird Party AdvisoryVDB Entry