Medium severity · published Mar 31, 2021
CVE-2021-3477
There's a flaw in OpenEXR's deep tile sample size calculations in versions before 3.0.0-beta
5.5
CVSS
1%
EPSS
No
On KEV
Description
There's a flaw in OpenEXR's deep tile sample size calculations in versions before 3.0.0-beta. An attacker who is able to submit a crafted file to be processed by OpenEXR could trigger an integer overflow, subsequently leading to an out-of-bounds read. The greatest risk of this flaw is to application availability.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 61% 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-2021-3477
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-3477
Issue Tracking
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26956
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1939159
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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