SB2018122125 - Buffer overflow in FFmpeg
Published: December 21, 2018 Updated: June 8, 2025
Security Bulletin ID
SB2018122125
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2015-8661)
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
The h264_slice_header_init function in libavcodec/h264_slice.c in FFmpeg before 2.8.3 does not validate the relationship between the number of threads and the number of slices, which allows remote attackers to cause a denial of service (out-of-bounds array access) or possibly have unspecified other impact via crafted H.264 data.
Remediation
Install update from vendor's website.