Description (CNA)
A local privilege escalation vulnerability exists in snap-confine, a set-capabilities core component used internally by Canonical snapd to construct the secure execution environment for snap applications. This vulnerability uniquely affects versions of snap-confine configured with set-capabilities (rather than standard set-uid-root installations). Due to a flaw in how privilege boundaries or security sandboxes are initialized when the binary runs under limited ambient capabilities, a local, unprivileged attacker can exploit this behavior to bypass intended restrictions and execute arbitrary code. Successful exploitation allows the local user to elevate their privileges to full root authority.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Not supplied / Not supplied | affected 2.75.0 before 2.76.1 |
| Canonical / Ubuntu 26.04 LTS | unaffected 2.76+ubuntu26.04.3 |
| Canonical / Ubuntu 24.04 LTS | unaffected 2.76+ubuntu24.04.1 |
| Canonical / Ubuntu 22.04 LTS | unaffected 2.76+ubuntu22.04.1 |
CWE
CWE-250
References
ADP enrichment
No English description supplied.
No references supplied.