CVE-2019-13223 — A reachable assertion in the lookup1_values function in stb_vorbis through 2019-

A reachable assertion in the lookup1_values function in stb_vorbis through 2019-03-04 allows an attacker to cause a denial of service by opening a crafted Ogg Vorbis file.

01What is this vulnerability?

A reachable assertion in the lookup1_values function in stb_vorbis through 2019-03-04 allows an attacker to cause a denial of service by opening a crafted Ogg Vorbis file.

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: 2019-08-15T00:00:00.000Z
• Last modified: 2024-08-04T23:49:23.976Z

09References

• nothings.org — http://nothings.org/stb_vorbis/
• github.com — https://github.com/nothings/stb/commits/master/stb_vorbis.c
• github.com — https://github.com/nothings/stb/commit/98fdfc6df88b1e34a736d5e126e6c8139c8de1a6
• lists.debian.org — https://lists.debian.org/debian-lts-announce/2023/01/msg00045.html