CVE-2022-30976 — GPAC 2

GPAC 2.0.0 misuses a certain Unicode utf8_wcslen (renamed gf_utf8_wcslen) function in utils/utf.c, resulting in a heap-based buffer over-read, as demonstrated by MP4Box.

01What is this vulnerability?

GPAC 2.0.0 misuses a certain Unicode utf8_wcslen (renamed gf_utf8_wcslen) function in utils/utf.c, resulting in a heap-based buffer over-read, as demonstrated by MP4Box.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2022-05-18T05:20:13.000Z
• Last modified: 2024-08-03T07:03:40.285Z

09References

• github.com — https://github.com/gpac/gpac/issues/2179
• github.com — https://github.com/gpac/gpac/blob/105d67985ff3c3f4b98a98f312e3d84ae77a4463/share…
• github.com — https://github.com/gpac/gpac/blob/105d67985ff3c3f4b98a98f312e3d84ae77a4463/src/u…