CVE-2019-19949 — In ImageMagick 7

In ImageMagick 7.0.8-43 Q16, there is a heap-based buffer over-read in the function WritePNGImage of coders/png.c, related to Magick_png_write_raw_profile and LocaleNCompare.

01What is this vulnerability?

In ImageMagick 7.0.8-43 Q16, there is a heap-based buffer over-read in the function WritePNGImage of coders/png.c, related to Magick_png_write_raw_profile and LocaleNCompare.

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: 2019-12-24T00:06:26.000Z
• Last modified: 2024-08-05T02:32:10.047Z

09References

• github.com — https://github.com/ImageMagick/ImageMagick/issues/1561
• lists.debian.org — https://lists.debian.org/debian-lts-announce/2019/12/msg00033.html
• lists.opensuse.org — http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00006.html
• www.debian.org — https://www.debian.org/security/2020/dsa-4712
• lists.debian.org — https://lists.debian.org/debian-lts-announce/2020/08/msg00030.html
• usn.ubuntu.com — https://usn.ubuntu.com/4549-1/