CVE-2018-6544

Severity: medium (CVSS 5.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2018-02-02 · updated 2026-06-17
Weakness: CWE-674

Description

pdf_load_obj_stm in pdf/pdf-xref.c in Artifex MuPDF 1.12.0 could reference the object stream recursively and therefore run out of error stack, which allows remote attackers to cause a denial of service via a crafted PDF document.

Affected products

Artifex MuPDF: 1.12.0
Debian Linux: 8.0, 9.0

References

http://git.ghostscript.com/?p=mupdf.git%3Bh=26527eef77b3e51c2258c8e40845bfbc015e405d
http://git.ghostscript.com/?p=mupdf.git%3Bh=b03def134988da8c800adac1a38a41a1f09a1d89
https://bugs.ghostscript.com/show_bug.cgi?id=698830
https://bugs.ghostscript.com/show_bug.cgi?id=698965
https://security.gentoo.org/glsa/201811-15
https://www.debian.org/security/2018/dsa-4152
http://git.ghostscript.com/?p=mupdf.git%3Bh=26527eef77b3e51c2258c8e40845bfbc015e405d
http://git.ghostscript.com/?p=mupdf.git%3Bh=b03def134988da8c800adac1a38a41a1f09a1d89
https://bugs.ghostscript.com/show_bug.cgi?id=698830
https://bugs.ghostscript.com/show_bug.cgi?id=698965
https://security.gentoo.org/glsa/201811-15
https://www.debian.org/security/2018/dsa-4152

Get alerted when CVE-2018-6544 or the next vulnerability affects your stack