Access Restriction Bypass Affecting lxc package, versions <1:1.0.6-6+deb8u5


Severity

Recommended
0.0
critical
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.36% (73rd percentile)

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  • Snyk ID SNYK-DEBIAN8-LXC-385866
  • published 1 May 2017
  • disclosed 1 May 2017

How 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.