Logo
componentrunc
Name
runc
Version
1.2.9
Type
library
Description
-
Licenses
Apache-2.0LGPL-2.1 (libseccomp)vendored dependencies licenses probably not listed
PURL
pkg:golang/github.com/opencontainers/runc@1.2.9
CPE
cpe:2.3:a:linuxfoundation:runc:1.2.9:-:*:*:*:*:*:*

Other Versions#


Project
Branch
Version
master
1.3.6

Patches#


#
Title
Author
Resolve
1
Replace os.Is* error checking functions with their errors.Is
Curd Becker <me@curd-becker.de>

Vulnerabilities#


Name
Analysis
Description
Exploitable
runc is a CLI tool for spawning and running containers according to the OCI specification. In versions prior to 1.3.6, 1.4.0-rc.1, 1.4.0-rc.12, 1.5.0-rc.1, and 1.5.0-rc.1, when setting up the container rootfs, setupPtmx and setupDevSymlinks call os.Remove and os.Symlink with a filepath.Join string which allow an image with /dev as a symlink to trick runc into deleting files called ptmx on the host or creating a hardcoded set of symlinks with specific names and targets in an arbitrary pre-existing host directory. This issue is not exploitable under Docker, because Docker creates a top-level read-only layer that masks any malicious /dev symlink present in the container image — unlike some other Linux container tooling, whose higher-level runtimes built on runc remain exposed to exploitation via a malicious image. This issue has been fixed in versions 1.3.6, 1.4.3 and 1.5.0.