ALPINE-CVE-2026-33165

Source
https://security.alpinelinux.org/vuln/CVE-2026-33165
Import Source
https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-33165.json
JSON Data
https://api.osv.dev/v1/vulns/ALPINE-CVE-2026-33165
Upstream
Published
2026-03-20T21:17:16.453Z
Modified
2026-06-15T18:18:11.086495273Z
Severity
  • 5.0 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.17, a crafted HEVC bitstream causes an out-of-bounds heap write confirmed by AddressSanitizer. The trigger is a stale ctbinfo.log2unitSize after an SPS change where PicWidthInCtbsY and PicHeightInCtbsY stay constant but Log2CtbSizeY changes, causing setSliceHeaderIndex to index past the allocated image metadata array and write 2 bytes past the end of a heap allocation. This issue has been patched in version 1.0.17.

References

Affected packages

Alpine:v3.24 / libde265

Package

Name
libde265
Purl
pkg:apk/alpine/libde265?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.0.18-r0

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-33165.json"