Improper input validation in MuPDF - CVE-2018-6544

 

Improper input validation in MuPDF - CVE-2018-6544

Published: April 3, 2018


Vulnerability identifier: #VU11489
CSH Severity: Low
CVSS v4.0: 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/E:U/U:Clear
CVE-ID: CVE-2018-6544
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Artifex Software, Inc.
Affected software:
MuPDF

Detailed vulnerability description

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.

How to mitigate CVE-2018-6544

Install update from vendor's website.

Sources