CVE-2020-13904
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
6.9 Medium
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
52.8%
FFmpeg 2.8 and 4.2.3 has a use-after-free via a crafted EXTINF duration in an m3u8 file because parse_playlist in libavformat/hls.c frees a pointer, and later that pointer is accessed in av_probe_input_format3 in libavformat/format.c.
Affected configurations
| CPE | Name | Operator | Version |
|---|---|---|---|
| ffmpeg:ffmpeg | ffmpeg | eq | 2.8 |
| ffmpeg:ffmpeg | ffmpeg | eq | 4.2.3 |
References
github.com/FFmpeg/FFmpeg/commit/6959358683c7533f586c07a766acc5fe9544d8b2
lists.debian.org/debian-lts-announce/2020/07/msg00022.html
patchwork.ffmpeg.org/project/ffmpeg/patch/20200529033905.41926-1-lq%40chinaffmpeg.org/
security.gentoo.org/glsa/202007-58
trac.ffmpeg.org/ticket/8673
usn.ubuntu.com/4431-1/
www.debian.org/security/2020/dsa-4722
Social References
More
Related
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
6.9 Medium
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
52.8%