CVE-2025-2176: zvbi Integer Overflow — Fix

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.

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CVSS v3.1 Score

7.3

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Weakness Type (CWE)

CWE-189 CWE-189

CWE-190 Integer Overflow

Affected Products

Vendor	Product	Versions
zapping-vbi	zvbi	< 0.2.44

References

Advisories & Patches

https://github.com/zapping-vbi/zvbi/commit/ca1672134b3e2962cd392212c73f44f8f4cb489f

Other References

https://github.com/zapping-vbi/zvbi/releases/tag/v0.2.44 https://github.com/zapping-vbi/zvbi/security/advisories/GHSA-g7cg-7gw9-v8cf https://vuldb.com/?ctiid.299205 https://vuldb.com/?id.299205 https://vuldb.com/?submit.512802

Frequently Asked Questions

What is CVE-2025-2176? +

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. It has a CVSS v3.1 base score of 7.3 (HIGH).

How severe is CVE-2025-2176? +

CVE-2025-2176 has a CVSS v3.1 score of 7.3 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-2176? +

CVE-2025-2176 affects products from zapping-vbi, specifically: zvbi. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-2176? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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