CVE-2022-32317 — The MPlayer Project v1

The MPlayer Project v1.5 was discovered to contain a heap use-after-free resulting in a double free in the preinit function at libvo/vo_v4l2.c. This vulnerability can lead to a Denial of Service (DoS) via a crafted file. The device=strdup statement is not executed on every call.

01What is this vulnerability?

The MPlayer Project v1.5 was discovered to contain a heap use-after-free resulting in a double free in the preinit function at libvo/vo_v4l2.c. This vulnerability can lead to a Denial of Service (DoS) via a crafted file. The device=strdup statement is not executed on every call. Note: This has been disputed by third parties as invalid and not reproduceable.

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: 2022-07-14T00:00:00.000Z
• Last modified: 2024-08-03T07:39:50.803Z

09References

• transfer.sh — https://transfer.sh/m2WcuM/poc_dup.zip
• bugs.gentoo.org — https://bugs.gentoo.org/show_bug.cgi?id=858107
• github.com — https://github.com/b17fr13nds/MPlayer_cve_poc