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CVE-2021-20300

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Date: March 3, 2022

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.

Severity Score

Related Resources (9)

https://bugzilla.redhat.com/show_bug.cgi?id=1939153
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-20300
https://security-tracker.debian.org/tracker/CVE-2021-20300
https://nvd.nist.gov/vuln/detail/CVE-2021-20300
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25562
https://access.redhat.com/security/cve/CVE-2021-20300
https://lists.debian.org/debian-lts-announce/2022/12/msg00022.html
https://github.com/AcademySoftwareFoundation/openexr/pull/836
https://www.mend.io/vulnerability-database/CVE-2021-20300

Severity Score

Weakness Type (CWE)

Integer Overflow or Wraparound

CWE-190

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): COMPLETE
Additional information:

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