ALPINE-CVE-2026-42495
- Source
- https://security.alpinelinux.org/vuln/CVE-2026-42495
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-42495.json
- JSON Data
- https://api.osv.dev/v1/vulns/ALPINE-CVE-2026-42495
- Upstream
- Published
- 2026-07-28T13:18:32.493Z
- Modified
- 2026-08-12T14:30:04.446517842Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.]
The directory and Rock Ridge / SUSP walk in libfsimage's iso9660 driver derives several lengths directly from attacker-controlled on-disk fields without validating them:
The directory loop itself assumes a good record length. This is CVE-2026-42494.
The calculation of the System Use area may underflow. This is CVE-2026-42495.
The Rock Ridge extension loop assumes a good (inner) record length. This is CVE-2026-62423.
The Rock Ridge NM record processing assumes a good entry length. This is CVE-2026-62424.
The Rock Ridge CE record processing assumes a good size and offset. This is CVE-2026-62425.
- References
Affected packages
Alpine:v3.21 / xen
Package
- Name
- xen
- Purl
- pkg:apk/alpine/xen?arch=source
Alpine:v3.22 / xen
Package
- Name
- xen
- Purl
- pkg:apk/alpine/xen?arch=source
Alpine:v3.23 / xen
Package
- Name
- xen
- Purl
- pkg:apk/alpine/xen?arch=source