Vulnerability · Published Mar 16, 2022 · Assigned by redhat
CVE-2021-20299
High 7.5
In plain English
A high-severity null pointer dereference in OpenEXR. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.8% (higher than 78% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)1.8%top 21.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A flaw was found in OpenEXR's Multipart input file functionality. A crafted multi-part input file with no actual parts can trigger a NULL pointer dereference. The highest threat from this vulnerability is to system availability.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | openexr | 2.5.4-1 | DEBIAN-CVE-2021-20299 |
| Debian:13 | openexr | 2.5.4-1 | DEBIAN-CVE-2021-20299 |
| Debian:14 | openexr | 2.5.4-1 | DEBIAN-CVE-2021-20299 |
Affected products (as reported)
Weakness: CWE-476
References
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25740
- https://github.com/AcademySoftwareFoundation/openexr/commit/25e9515b06a6bc293d871622b8cafaee7af84e0f
- https://bugzilla.redhat.com/show_bug.cgi?id=1939154
- [debian-lts-announce] 20221211 [SECURITY] [DLA 3236-1] openexr security update mailing-list