CVE-2019-15942

HIGH

FFmpeg < 4.2 - Uninitialized Memory Access in h2645_parse

Title source: llm
STIX 2.1

Description

FFmpeg through 4.2 has a "Conditional jump or move depends on uninitialised value" issue in h2645_parse because alloc_rbsp_buffer in libavcodec/h2645_parse.c mishandles rbsp_buffer.

References (3)

Core 3
Core References
Exploit, Third Party Advisory x_refsource_misc
https://trac.ffmpeg.org/ticket/8093
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/202007-58

Scores

CVSS v3 8.8
EPSS 0.0202
EPSS Percentile 78.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-252
Status published
Products (1)
ffmpeg/ffmpeg < 4.2
Published Sep 05, 2019
Tracked Since Feb 18, 2026