CVE-2021-30465

Published: 19 May 2021

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.

Priority

High

CVSS 3 base score: 8.5

Status

Package Release Status
runc
Launchpad, Ubuntu, Debian
Upstream
Released (1.0.0-rc95)
Ubuntu 21.10 (Impish Indri)
Released (1.0.0~rc93-0ubuntu2)
Ubuntu 21.04 (Hirsute Hippo)
Released (1.0.0~rc93-0ubuntu1.1)
Ubuntu 20.04 LTS (Focal Fossa)
Released (1.0.0~rc93-0ubuntu1~20.04.2)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (1.0.0~rc93-0ubuntu1~18.04.2)
Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(end of standard support, was needed)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist