ALPINE-CVE-2026-34378
- Source
- https://security.alpinelinux.org/vuln/CVE-2026-34378
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-34378.json
- JSON Data
- https://api.osv.dev/v1/vulns/ALPINE-CVE-2026-34378
- Upstream
- Published
- 2026-04-06T16:16:35Z
- Modified
- 2026-11-03T06:32:54Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From 3.4.0 to before 3.4.9, a missing bounds check on the dataWindow attribute in EXR file headers allows an attacker to trigger a signed integer overflow in generic_unpack(). By setting dataWindow.min.x to a large negative value, OpenEXRCore computes an enormous image width, which is later used in a signed integer multiplication that overflows, causing the process to terminate with SIGILL via UBSan. This vulnerability is fixed in 3.4.9.
- References
Affected packages
Alpine:v3.22 / openexr
Package
- Name
- openexr
- Purl
- pkg:apk/alpine/openexr?arch=source
Alpine:v3.23 / openexr
Package
- Name
- openexr
- Purl
- pkg:apk/alpine/openexr?arch=source