CVE-2018-16643 — The functions ReadDCMImage in coders/dcm
The functions ReadDCMImage in coders/dcm.c, ReadPWPImage in coders/pwp.c, ReadCALSImage in coders/cals.c, and ReadPICTImage in coders/pict.c in ImageMagick 7.0.8-4 do not check the return value of the fputc function, which allows remote attackers to cause a denial of service via
Published
2018-09-06T22:00:00.000Z
Last modified
2024-08-05T10:32:53.544Z
01What is this vulnerability?
The functions ReadDCMImage in coders/dcm.c, ReadPWPImage in coders/pwp.c, ReadCALSImage in coders/cals.c, and ReadPICTImage in coders/pict.c in ImageMagick 7.0.8-4 do not check the return value of the fputc function, which allows remote attackers to cause a denial of service via a crafted image 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: 2018-09-06T22:00:00.000Z
- Last modified: 2024-08-05T10:32:53.544Z
09References
- github.com — https://github.com/ImageMagick/ImageMagick/issues/1199
- github.com — https://github.com/ImageMagick/ImageMagick/commit/6b6bff054d569a77973f2140c0e863…
- lists.debian.org — https://lists.debian.org/debian-lts-announce/2018/10/msg00002.html
- usn.ubuntu.com — https://usn.ubuntu.com/3785-1/
- lists.debian.org — https://lists.debian.org/debian-lts-announce/2020/09/msg00007.html
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