CVE-2021-30465
Published: August 31, 2023Last modified: August 31, 2023
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 8.5 |
| Attack Vector | NETWORK |
| Attack complexity | HIGH |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | CHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | runc | Not affected (1.1.5-r2) |
| Stream | runc | Not affected (1.1.9-r0) |
References
- http://www.openwall.com/lists/oss-security/2021/05/19/2
- https://bugzilla.opensuse.org/show_bug.cgi?id=1185405
- https://github.com/opencontainers/runc/commit/0ca91f44f1664da834bc61115a849b56d22f595f
- https://github.com/opencontainers/runc/releases
- https://github.com/opencontainers/runc/security/advisories/GHSA-c3xm-pvg7-gh7r
- https://lists.debian.org/debian-lts-announce/2023/03/msg00023.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/35ZW6NBZSBH5PWIT7JU4HXOXGFVDCOHH/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4HOARVIT47RULTTFWAU7XBG4WY6TDDHV/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/35ZW6NBZSBH5PWIT7JU4HXOXGFVDCOHH/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/4HOARVIT47RULTTFWAU7XBG4WY6TDDHV/
- https://security.gentoo.org/glsa/202107-26
- https://security.netapp.com/advisory/ntap-20210708-0003/