CVE-2021-20296 — MEDIUM (5.3)

Q: How severe is CVE-2021-20296?

CVE-2021-20296 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2021-20296?

Check the references section above for vendor advisories and patch information. Affected products include: Openexr Openexr, Debian Debian Linux.

Vulnerability 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 Score

5.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

LOW

Affected Products

Vendor	Product	Versions
Openexr	Openexr	< 2.4.3
Debian	Debian Linux	9.0

Related Weaknesses (CWE)

CWE-476

References

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24854Issue TrackingMailing ListPatch
https://bugzilla.redhat.com/show_bug.cgi?id=1939141Issue TrackingPatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2021/07/msg00001.htmlMailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/12/msg00022.htmlMailing ListThird Party Advisory
https://security.gentoo.org/glsa/202107-27Third Party Advisory
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24854Issue TrackingMailing ListPatch
https://bugzilla.redhat.com/show_bug.cgi?id=1939141Issue TrackingPatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2021/07/msg00001.htmlMailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/12/msg00022.htmlMailing ListThird Party Advisory
https://security.gentoo.org/glsa/202107-27Third Party Advisory

FAQ

What is CVE-2021-20296?

CVE-2021-20296 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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 cau...

How severe is CVE-2021-20296?

CVE-2021-20296 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-20296?

Check the references section above for vendor advisories and patch information. Affected products include: Openexr Openexr, Debian Debian Linux.