High severity · published Jan 4, 2021
CVE-2020-35965
decode_frame in libavcodec/exr.c in FFmpeg 4.3.1 has an out-of-bounds write because of errors in calculations of when to perform memset zero operations
7.5
CVSS
2.3%
EPSS
No
On KEV
Description
decode_frame in libavcodec/exr.c in FFmpeg 4.3.1 has an out-of-bounds write because of errors in calculations of when to perform memset zero operations.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.3% · higher than 83% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
9.0; 10.0 · source: NVD
FF
Ffmpeg · Ffmpeg
4.3.1 before 4.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-35965
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-35965
Exploit
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26532
Patch
https://github.com/FFmpeg/FFmpeg/commit/3e5959b3457f7f1856d997261e6ac672bba49e8b
Patch
https://github.com/FFmpeg/FFmpeg/commit/b0a8b40294ea212c1938348ff112ef1b9bf16bb3
Mailing List
https://lists.debian.org/debian-lts-announce/2021/01/msg00026.html
Third Party Advisory
https://security.gentoo.org/glsa/202105-24
Third Party Advisory
https://www.debian.org/security/2021/dsa-4990
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