Access Restriction Bypass Affecting lxc package, versions <1:1.0.6-6+deb8u5
Threat Intelligence
EPSS
0.36% (73rd
percentile)
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Test your applications- Snyk ID SNYK-DEBIAN8-LXC-385866
- published 1 May 2017
- disclosed 1 May 2017
Introduced: 1 May 2017
CVE-2016-8649 Open this link in a new tabHow to fix?
Upgrade Debian:8 lxc to version 1:1.0.6-6+deb8u5 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream lxc package and not the lxc package as distributed by Debian.
See How to fix? for Debian:8 relevant fixed versions and status.
lxc-attach in LXC before 1.0.9 and 2.x before 2.0.6 allows an attacker inside of an unprivileged container to use an inherited file descriptor, of the host's /proc, to access the rest of the host's filesystem via the openat() family of syscalls.
References
- https://security-tracker.debian.org/tracker/CVE-2016-8649
- https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1639345
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=845465
- https://github.com/lxc/lxc/commit/81f466d05f2a89cb4f122ef7f593ff3f279b165c
- https://bugzilla.redhat.com/show_bug.cgi?id=1398242
- http://www.securityfocus.com/bid/94498
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2016-8649