CVE-2021-20300: Integer Overflow
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.
Other sources
Integer-overflow in Imf25::hufUncompress
— Red Hat
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2021-20300.
What is the severity of CVE-2021-20300?
The severity of CVE-2021-20300 is high with a severity value of 5.5.
Where can I find more information about CVE-2021-20300?
You can find more information about CVE-2021-20300 at the following references: [Link 1](https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25562), [Link 2](https://bugzilla.redhat.com/show_bug.cgi?id=1939153), [Link 3](https://github.com/AcademySoftwareFoundation/openexr/pull/836).
What is the affected software for CVE-2021-20300?
The affected software for CVE-2021-20300 includes OpenEXR (version up to exclusive 2.5.4), Debian Linux 10.0, and OpenEXR (version up to exclusive 3.0.0) from the redhat source.
How can I fix CVE-2021-20300?
To fix CVE-2021-20300, update OpenEXR to version 3.0.0 or higher.