Vulnerability Description
runc before 1.0.0-rc95 allows a Container Filesystem Breakout via Directory Traversal. To exploit the vulnerability, an attacker must be able to create multiple containers with a fairly specific mount configuration. The problem occurs via a symlink-exchange attack that relies on a race condition.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linuxfoundation | Runc | <= 0.1.1 |
| Fedoraproject | Fedora | 33 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2021/05/19/2Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2021/05/19/2Mailing ListThird Party Advisory
- https://bugzilla.opensuse.org/show_bug.cgi?id=1185405Issue Tracking
- https://github.com/opencontainers/runc/commit/0ca91f44f1664da834bc61115a849b56d2PatchThird Party Advisory
- https://github.com/opencontainers/runc/releasesRelease NotesThird Party Advisory
- https://github.com/opencontainers/runc/security/advisories/GHSA-c3xm-pvg7-gh7rPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/03/msg00023.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202107-26Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210708-0003/Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/05/19/2Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2021/05/19/2Mailing ListThird Party Advisory
- https://bugzilla.opensuse.org/show_bug.cgi?id=1185405Issue Tracking
- https://github.com/opencontainers/runc/commit/0ca91f44f1664da834bc61115a849b56d2PatchThird Party Advisory
FAQ
What is CVE-2021-30465?
CVE-2021-30465 is a vulnerability with a CVSS score of 8.5 (HIGH). runc before 1.0.0-rc95 allows a Container Filesystem Breakout via Directory Traversal. To exploit the vulnerability, an attacker must be able to create multiple containers with a fairly specific mount...
How severe is CVE-2021-30465?
CVE-2021-30465 has been rated HIGH with a CVSS base score of 8.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-30465?
Check the references section above for vendor advisories and patch information. Affected products include: Linuxfoundation Runc, Fedoraproject Fedora.