SB2019081675 - Assertion failure in ffmpeg (Alpine package)
Published: August 16, 2019
Security Bulletin ID
SB2019081675
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Assertion failure (CVE-ID: CVE-2018-15822)
The vulnerability allows a local attacker to cause DoS condition on the target system.
The vulnerability exists due to insufficient checks for an empty audio packet by the flv_write_packet function, as defined in the libavformat/flvenc.c source code file. A local attacker can access the system and execute a specially crafted application that submits malicious input to trigger an assertion failure and cause the service to crash.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=8b2616ec00d3b29a5bdc2fce68c0594898b57b63
- https://git.alpinelinux.org/aports/commit/?id=adac785d84798e462af5871aa7df312c6510c248
- https://git.alpinelinux.org/aports/commit/?id=d8d38dabc6e30c901eb6bd6627d8337849d7c041
- https://git.alpinelinux.org/aports/commit/?id=cf78a820406ae4481e937bc2fba252ff79c89a09
- https://git.alpinelinux.org/aports/commit/?id=859fd99d06049c009c8b745626511cd681061a99