Vulnerability · Published Aug 23, 2022 · Assigned by redhat
CVE-2021-20304
High 7.5
In plain English
A high-severity integer overflow in OpenEXR. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.1% (higher than 81% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)2.1%top 18.5% 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 hufDecode functionality. This flaw allows an attacker who can pass a crafted file to be processed by OpenEXR, to trigger an undefined right shift error. 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-2021-20304 |
| Debian:13 | openexr | 2.5.4-1 | DEBIAN-CVE-2021-20304 |
| Debian:14 | openexr | 2.5.4-1 | DEBIAN-CVE-2021-20304 |
Affected products (as reported)
Weakness: CWE-190
References
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26229
- https://github.com/AcademySoftwareFoundation/openexr/pull/849
- https://github.com/AcademySoftwareFoundation/openexr/commit/51a92d67f53c08230734e74564c807043cbfe41e
- https://bugzilla.redhat.com/show_bug.cgi?id=1939157
- https://access.redhat.com/security/cve/CVE-2021-20304
- GLSA-202210-31 vendor-advisory