Out-of-bounds Read The advisory has been revoked - it doesn't affect any version of package mupdf (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1804-MUPDF-1189580
- published16 Aug 2025
- disclosed26 Oct 2018
Introduced: 26 Oct 2018
CVE-2018-18662 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:18.04.
NVD Description
Note: Versions mentioned in the description apply only to the upstream mupdf package and not the mupdf package as distributed by Ubuntu.
There is an out-of-bounds read in fz_run_t3_glyph in fitz/font.c in Artifex MuPDF 1.14.0, as demonstrated by mutool.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-18662
- http://www.securityfocus.com/bid/105755
- https://bugs.ghostscript.com/show_bug.cgi?id=700043
- https://github.com/TeamSeri0us/pocs/tree/master/mupdf
- https://lists.debian.org/debian-lts-announce/2020/07/msg00019.html
- https://cgit.ghostscript.com/cgi-bin/cgit.cgi/mupdf.git/commit/?id=164ddc22ee0d5b63a81d5148f44c37dd132a9356