CVE-2021-30465
moderate-risk
Published 2021-05-27
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.
Do I need to act?
~
2.4% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.5/10
High
NETWORK
/ HIGH complexity
Affected Products (18)
Affected Vendors
References (22)
Issue Tracking
https://bugzilla.opensuse.org/show_bug.cgi?id=1185405
Release Notes
https://github.com/opencontainers/runc/releases
Third Party Advisory
https://security.gentoo.org/glsa/202107-26
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210708-0003/
Issue Tracking
https://bugzilla.opensuse.org/show_bug.cgi?id=1185405
Release Notes
https://github.com/opencontainers/runc/releases
and 2 more references
49
/ 100
moderate-risk
Severity
25/34 · High
Exploitability
5/34 · Minimal
Exposure
19/34 · Moderate