What is CVE-2021-20300?

CVE-2021-20300 is a medium-severity vulnerability in Openexr, classified under Integer Overflow or Wraparound. CVSS score: 5.5/10. Published 2022-03-04.

How severe is CVE-2021-20300?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Integer overflow in Openexr

CVE-2021-20300

A flaw was found in OpenEXR's hufUncompress functionality in OpenEXR/IlmImf/ImfHuf.cpp. This flaw allows an attacker who can submit a crafted file that is processed by OpenEXR, to trigger an integer overflow. The highest threat from this vulnerability is to system availability.

Vulnerability class: Integer Overflow

EPSS: 0.009 (55.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Openexr
Debian Debian_linux — versions 10.0
N/a Openexr — versions Fixed in v2.5.4 and beyond.

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

secalert@redhat.com (Third Party Advisory, Issue Tracking)
secalert@redhat.com (Third Party Advisory)
secalert@redhat.com (Patch, Third Party Advisory)
secalert@redhat.com (mailing-list, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2021-20300?: CVE-2021-20300 is a medium-severity vulnerability in Openexr, classified under Integer Overflow or Wraparound. CVSS score: 5.5/10. Published 2022-03-04.
How severe is CVE-2021-20300?: Medium severity. CVSS v3 base score is 5.5 out of 10.