Description (CNA)
bubblewrap is a low-level unprivileged sandboxing tool. From version 0.11.0 to before version 0.11.2, if bubblewrap is installed in setuid mode then the user can use ptrace to attach to bubblewrap and control the unprivileged part of the sandbox setup phase. This allows the attacker to arbitrarily use the privileged operations, and in particular the "overlay mount" operation, allowing the creation of overlay mounts which is otherwise not allowed in the setuid version of bubblewrap. This issue has been patched in version 0.11.2.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| containers / bubblewrap | affected >= 0.11.0, < 0.11.2 |
CWE
CWE-269
References
- https://github.com/containers/bubblewrap/security/advisories/GHSA-xq78-7hw4-5jvp
- https://github.com/containers/bubblewrap/releases/tag/v0.11.2
ADP enrichment
No English description supplied.
No references supplied.
A flaw was found in bubblewrap when operating in setuid mode. A local user may use ptrace to interfere with the sandbox setup process and gain access to privileged operations that are normally restricted. This could allow an attacker to bypass intended sandboxing restrictions and potentially elevate privileges on the system.