CVE-2018-18544 — There is a memory leak in the function WriteMSLImage of coders/msl

There is a memory leak in the function WriteMSLImage of coders/msl.c in ImageMagick 7.0.8-13 Q16, and the function ProcessMSLScript of coders/msl.c in GraphicsMagick before 1.3.31.

01What is this vulnerability?

There is a memory leak in the function WriteMSLImage of coders/msl.c in ImageMagick 7.0.8-13 Q16, and the function ProcessMSLScript of coders/msl.c in GraphicsMagick before 1.3.31.

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: 2018-10-21T01:00:00.000Z
• Last modified: 2024-08-05T11:15:58.924Z

09References

• github.com — https://github.com/ImageMagick/ImageMagick/issues/1360
• hg.code.sf.net — http://hg.code.sf.net/p/graphicsmagick/code/file/233618f8fe82/ChangeLog
• lists.opensuse.org — http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00034.html
• usn.ubuntu.com — https://usn.ubuntu.com/4034-1/