CVE-2020-21697

A heap-use-after-free in the mpeg_mux_write_packet function in libavformat/mpegenc.c of FFmpeg 4.2 allows to cause a denial of service (DOS) via a crafted avi file.

CVSS v3.1

6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS v2.0

4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P

EPSS

0.92% chance of exploitation in the next 30 days, 58th percentile

Published

2021-08-10

Updated

2024-08-04

Proof-of-concept exploits (1)

• https://trac.ffmpeg.org/ticket/8188

References

• CVE Record
• NVD entry

Related

• CVE-2020-21688
• CVE-2020-21710
• CVE-2020-21684
• CVE-2020-21724
• CVE-2020-21683
• CVE-2020-21806