Out-of-bounds read in FFmpeg - CVE-2018-9841

 

Out-of-bounds read in FFmpeg - CVE-2018-9841

Published: April 12, 2018


Vulnerability identifier: #VU11781
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-9841
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: ffmpeg.sourceforge.net
Affected software:
FFmpeg

Detailed vulnerability description

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

The weakness exists in the export function in the libavfilter/vf_signature.c source code file when processing files with long filenames. A remote attacker can trick the victim into opening a specially crafted file with a long filename, trigger out-of-array access and cause the service to crash.

How to mitigate CVE-2018-9841

Install update from vendor's website.

Sources