CVE-2020-13790 — libjpeg-turbo 2

libjpeg-turbo 2.0.4, and mozjpeg 4.0.0, has a heap-based buffer over-read in get_rgb_row() in rdppm.c via a malformed PPM input file.

01What is this vulnerability?

libjpeg-turbo 2.0.4, and mozjpeg 4.0.0, has a heap-based buffer over-read in get_rgb_row() in rdppm.c via a malformed PPM input 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: 2020-06-03T18:56:05.000Z
• Last modified: 2024-08-04T12:25:16.551Z

09References

• github.com — https://github.com/libjpeg-turbo/libjpeg-turbo/issues/433
• github.com — https://github.com/libjpeg-turbo/libjpeg-turbo/commit/3de15e0c344d11d4b90f4a4713…
• usn.ubuntu.com — https://usn.ubuntu.com/4386-1/
• lists.fedoraproject.org — https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro…
• lists.fedoraproject.org — https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro…
• lists.debian.org — https://lists.debian.org/debian-lts-announce/2020/07/msg00033.html
• lists.opensuse.org — http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00031.html
• lists.opensuse.org — http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00062.html
• security.gentoo.org — https://security.gentoo.org/glsa/202010-03