Out-of-bounds read in MuPDF - CVE-2018-18662
Published: October 26, 2018 / Updated: October 30, 2018
Vulnerability identifier: #VU15581
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-2018-18662
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The vulnerability exists due to out-of-bounds read in fz_run_t3_glyph in fitz/font.c when handling malicious input. A remote attacker can send specially crafted .pdf file, trigger out-of-bounds read and cause the application to crash.
Affected software
MuPDF
Fedora
mupdf
Fedora
mupdf
How to mitigate CVE-2018-18662
Install update from vendor's website.
mupdf - addressed in versions 1.14.0-6.fc28, 1.14.0-6.fc29