Medium severity5.3NVD Advisory· Published Apr 1, 2021· Updated Jun 17, 2026

CVE-2021-20296

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Openexr/Openexr3 versions
cpe:2.3:a:openexr:openexr:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:openexr:openexr:*:*:*:*:*:*:*:*range: <2.4.3
- (no CPE)range: <3.0.0-beta
- (no CPE)range: OpenEXR 3.0.0-beta
Debian/linux2 versions
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
osv-coords3 versions
pkg:rpm/opensuse/openexr&distro=openSUSE%20Leap%2015.2 pkg:rpm/suse/openexr&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP2 pkg:rpm/suse/openexr&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP3
< 2.2.1-lp152.7.14.1+ 2 more
- (no CPE)range: < 2.2.1-lp152.7.14.1
- (no CPE)range: < 2.2.1-3.27.1
- (no CPE)range: < 2.2.1-3.27.1

Patches

Vulnerability mechanics

References

bugs.chromium.org/p/oss-fuzz/issues/detailnvdIssue TrackingMailing ListPatchThird Party Advisory
bugzilla.redhat.com/show_bug.cginvdIssue TrackingPatchThird Party Advisory
lists.debian.org/debian-lts-announce/2021/07/msg00001.htmlnvdMailing ListThird Party Advisory
lists.debian.org/debian-lts-announce/2022/12/msg00022.htmlnvdMailing ListThird Party Advisory
security.gentoo.org/glsa/202107-27nvdThird Party Advisory

News mentions

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cvss	0.345
epss	0.001
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000