CVE-2021-20303: Integer Overflow
First published: Mon Mar 15 2021(Updated: )
A flaw found in function dataWindowForTile() of IlmImf/ImfTiledMisc.cpp. An attacker who is able to submit a crafted file to be processed by OpenEXR could trigger an integer overflow, leading to an out-of-bounds write on the heap. The greatest impact of this flaw is to application availability, with some potential impact to data integrity as well.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Openexr Openexr | <2.5.4 | |
| Debian Debian Linux | =10.0 | |
| redhat/OpenEXR | <2.5.4 | 2.5.4 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25505
- https://bugzilla.redhat.com/show_bug.cgi?id=1939151
- https://github.com/AcademySoftwareFoundation/openexr/pull/831
- https://lists.debian.org/debian-lts-announce/2022/12/msg00022.html
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1939178
Frequently Asked Questions
What is CVE-2021-20303?
CVE-2021-20303 is a vulnerability found in the function dataWindowForTile() of IlmImf/ImfTiledMisc.cpp in OpenEXR, which could be exploited by an attacker to trigger an integer overflow and perform an out-of-bounds write on the heap.
How does CVE-2021-20303 impact application availability?
The greatest impact of CVE-2021-20303 is to application availability.
What is the severity of CVE-2021-20303?
CVE-2021-20303 has a severity rating of 6.1 (medium).
Which software versions are affected by CVE-2021-20303?
CVE-2021-20303 affects OpenEXR versions up to and excluding 2.5.4, Debian Linux version 10.0, and Red Hat OpenEXR version up to and excluding 2.5.4.
How can I fix the CVE-2021-20303 vulnerability?
To fix the CVE-2021-20303 vulnerability, update OpenEXR to version 2.5.4 or higher.
- collector/nvd-index
- agent/type
- agent/softwarecombine
- agent/first-publish-date
- collector/mitre-cve
- source/MITRE
- agent/remedy
- agent/weakness
- agent/severity
- agent/references
- agent/last-modified-date
- agent/author
- agent/description
- agent/tags
- agent/event
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2021-20303
- agent/software-canonical-lookup
- vendor/openexr
- canonical/openexr openexr
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/10.0
- package-manager/redhat