Medium severity · published Apr 1, 2021
CVE-2021-20296
A flaw was found in OpenEXR in versions before 3.0.0-beta
5.3
CVSS
1.7%
EPSS
No
On KEV
Description
A flaw was found in OpenEXR in versions before 3.0.0-beta. A crafted input file supplied by an attacker, that is processed by the Dwa decompression functionality of OpenEXR's IlmImf library, could cause a NULL pointer dereference. The highest threat from this vulnerability is to system availability.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.7% · higher than 78% 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
OP
Openexr · Openexr
before 2.4.3; 2.5.0 before 2.5.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-20296
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-20296
Issue Tracking
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24854
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1939141
Mailing List
https://lists.debian.org/debian-lts-announce/2021/07/msg00001.html
Mailing List
https://lists.debian.org/debian-lts-announce/2022/12/msg00022.html
Third Party Advisory
https://security.gentoo.org/glsa/202107-27
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