CVE-2016-9962

Source
Severity High
Remote No
Type Privilege escalation
Description
The runc component used by `docker exec` feature of docker allowed additional container processes to be ptraced by the pid 1 of the container. This allows the main processes of the container, if running as root, to gain low-level access to these new processes during initialization. An attacker can, depending on the nature of the incoming process, leverage this to elevate access to the host. This ranges from accessing host content through the file descriptors of the incoming process to, potentially, a complete container escape by leveraging memory access or syscall interception.
Group Package Affected Fixed Severity Status Ticket
AVG-134 runc 0.1.1-4 1.0.0rc5+19+g69663f0b-1 High Fixed
AVG-133 docker 1:1.12.5-1 1:1.12.6-1 High Fixed FS#52493
Date Advisory Group Package Severity Description
16 May 2018 ASA-201805-11 AVG-134 runc High privilege escalation
13 Jan 2017 ASA-201701-19 AVG-133 docker High privilege escalation
References
https://github.com/opencontainers/runc/commit/50a19c6ff828c58e5dab13830bd3dacde268afe5
https://bugzilla.suse.com/show_bug.cgi?id=1012568
https://github.com/docker/docker/compare/v1.12.5...v1.12.6
https://www.mail-archive.com/fulldisclosure@seclists.org/msg04165.html