CVE-2020-12268 — jbig2_image_compose in jbig2_image

jbig2_image_compose in jbig2_image.c in Artifex jbig2dec before 0.18 has a heap-based buffer overflow.

01What is this vulnerability?

jbig2_image_compose in jbig2_image.c in Artifex jbig2dec before 0.18 has a heap-based buffer overflow.

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: 2020-04-27T01:44:05.000Z
• Last modified: 2024-08-04T11:48:58.617Z

09References

• github.com — https://github.com/ArtifexSoftware/jbig2dec/compare/0.17...0.18
• bugs.chromium.org — https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20332
• github.com — https://github.com/ArtifexSoftware/jbig2dec/commit/0726320a4b55078e9d8deb590e477…
• lists.opensuse.org — http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00034.html
• lists.debian.org — https://lists.debian.org/debian-lts-announce/2021/10/msg00023.html