CVE-2018-15822

Publication date 23 August 2018

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

The flv_write_packet function in libavformat/flvenc.c in FFmpeg through 2.8 does not check for an empty audio packet, leading to an assertion failure.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
ffmpeg	20.04 LTS focal	Not affected
	19.10 eoan	Not affected
	19.04 disco	Not affected
	18.10 cosmic	Fixed 7:4.0.4-0ubuntu1
	18.04 LTS bionic	Fixed 7:3.4.6-0ubuntu0.18.04.1
	16.04 LTS xenial	Fixed 7:2.8.17-0ubuntu0.1
	14.04 LTS trusty	Not in release

Severity score breakdown

CVSS version: CVSS v3.0

Base score 7.5 · High

Base metrics

Parameter	Value
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality impact	None
Integrity impact	None
Availability impact	High

Scores

Parameter	Value
Base score	7.5 · High
Exploitability score	-
Impact score	-

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-3967-1
FFmpeg vulnerabilities
6 May 2019

USN-4431-1
FFmpeg vulnerabilities
22 July 2020