CVE-2018-13300 — In FFmpeg 3

In FFmpeg 3.2 and 4.0.1, an improper argument (AVCodecParameters) passed to the avpriv_request_sample function in the handle_eac3 function in libavformat/movenc.c may trigger an out-of-array read while converting a crafted AVI file to MPEG4, leading to a denial of service and pos

01What is this vulnerability?

In FFmpeg 3.2 and 4.0.1, an improper argument (AVCodecParameters) passed to the avpriv_request_sample function in the handle_eac3 function in libavformat/movenc.c may trigger an out-of-array read while converting a crafted AVI file to MPEG4, leading to a denial of service and possibly an information disclosure.

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: 2018-07-05T17:00:00.000Z
• Last modified: 2024-08-05T09:00:34.899Z

09References

• www.debian.org — https://www.debian.org/security/2018/dsa-4249
• github.com — https://github.com/FFmpeg/FFmpeg/commit/95556e27e2c1d56d9e18f5db34d6f756f3011148
• www.securityfocus.com — http://www.securityfocus.com/bid/104675
• github.com — https://github.com/FFmpeg/FFmpeg/commit/e6d3fd942f772f54ab6a5ca619cdaadef26b7702