Improper input validation in MuPDF - CVE-2018-6544

Vulnerability identifier: #VU11489

CSH Severity: Low

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2018-6544

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists in th pdf_load_obj_stm in pdf/pdf-xref.c due to it can reference the object stream recursively and therefore run out of error stack. A remote attacker can submit a specially crafted PDF document cause the service to crash.

MuPDF
Debian Linux
Arch Linux
Fedora
mupdf (Alpine package)
mupdf

Install update from vendor's website.

mupdf (Alpine package) - update to 1.13.0-r0
mupdf - update to 1.12.0-5.fc27

• http://git.ghostscript.com/?p=mupdf.git;h=26527eef77b3e51c2258c8e40845bfbc015e405d

• Multiple vulnerabilities in MuPDF
• Debian update for mupdf
• Arch Linux update for mupdf
• Arch Linux update for mupdf-gl
• Arch Linux update for libmupdf
• Arch Linux update for mupdf-tools
• Arch Linux update for llpp
• Arch Linux update for zathura-pdf-mupdf
• Improper input validation in mupdf (Alpine package)
• Fedora 27 update for mupdf