Vulnerability Details : CVE-2020-21041
Buffer Overflow vulnerability exists in FFmpeg 4.1 via apng_do_inverse_blend in libavcodec/pngenc.c, which could let a remote malicious user cause a Denial of Service
Vulnerability category: OverflowDenial of service
Products affected by CVE-2020-21041
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:a:ffmpeg:ffmpeg:4.1:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-21041
0.33%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 71 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-21041
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2020-21041
-
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-21041
-
https://lists.debian.org/debian-lts-announce/2021/08/msg00018.html
[SECURITY] [DLA 2742-1] ffmpeg security updateMailing List;Third Party Advisory
-
https://trac.ffmpeg.org/ticket/7989
#7989 (heap-buffer-overflow at apng_do_inverse_blend in libavcodec/pngenc.c) – FFmpegExploit;Patch;Vendor Advisory
-
https://www.debian.org/security/2021/dsa-4990
Debian -- Security Information -- DSA-4990-1 ffmpegThird Party Advisory
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