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CVE-2019-5736

Published: 11 February 2019

runc through 1.0-rc6, as used in Docker before 18.09.2 and other products, allows attackers to overwrite the host runc binary (and consequently obtain host root access) by leveraging the ability to execute a command as root within one of these types of containers: (1) a new container with an attacker-controlled image, or (2) an existing container, to which the attacker previously had write access, that can be attached with docker exec. This occurs because of file-descriptor mishandling, related to /proc/self/exe.

Priority

Medium

CVSS 3 base score: 8.6

Status

Package Release Status
docker.io
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 18.04 LTS (Bionic Beaver)
Released (18.06.1-0ubuntu1.2~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (18.06.1-0ubuntu1.2~16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was needed)
runc
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 18.04 LTS (Bionic Beaver)
Released (1.0.0~rc4+dfsg1-6ubuntu0.18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (1.0.0~rc2+docker1.13.1-0ubuntu1~16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist