CVE-2017-18367

Published: 24 April 2019

libseccomp-golang 0.9.0 and earlier incorrectly generates BPFs that OR multiple arguments rather than ANDing them. A process running under a restrictive seccomp filter that specified multiple syscall arguments could bypass intended access restrictions by specifying a single matching argument.

From the Ubuntu security team

It was discovered that libseccomp-golang did not properly generate BPFs. If a process were running under a restrictive seccomp filter that specified multiple syscall arguments, the application could potentially bypass the intended restrictions put in place by seccomp.

Priority

Medium

CVSS 3 base score: 7.5

Status

Package Release Status
golang-github-seccomp-libseccomp-golang
Launchpad, Ubuntu, Debian
Upstream
Released (0.9.0-2)
Ubuntu 20.10 (Groovy Gorilla) Not vulnerable
(0.9.0-2)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(0.9.0-2)
Ubuntu 18.04 LTS (Bionic Beaver) Needed

Ubuntu 16.04 LTS (Xenial Xerus)
Released (0.0~git20150813.0.1b506fc-2+deb9u1build0.16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist