[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
| Link | Resource |
|---|---|
| https://xenbits.xenproject.org/xsa/advisory-497.html |
Configurations
No configuration.
History
28 Jul 2026, 16:17
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | CWE-125 | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 6.1 |
28 Jul 2026, 13:18
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-07-28 13:18
Updated : 2026-07-28 16:17
NVD link : CVE-2026-42494
Mitre link : CVE-2026-42494
CVE.ORG link : CVE-2026-42494
JSON object : View
Products Affected
No product.
CWE
CWE-125
Out-of-bounds Read