CVE-2017-7358

Published: 04 April 2017

In LightDM through 1.22.0, a directory traversal issue in debian/guest-account.sh allows local attackers to own arbitrary directory path locations and escalate privileges to root when the guest user logs out.

Priority

High

CVSS 3 base score: 7.3

Status

Package Release Status
lightdm
Launchpad, Ubuntu, Debian 		Upstream Needed

Ubuntu 16.04 ESM (Xenial Xerus)
Released (1.18.3-0ubuntu1.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was not-affected)

Notes

AuthorNote
tyhicks 
This issue was reported to us by Beyond Security but they did not
discover the issue. The discoverer is unknown.

References

Bugs

Join the discussion

Canonical is offering Extended Security Maintenance

Canonical is offering Ubuntu Extended Security Maintenance (ESM) for security fixes and essential packages.

Find out more about ESM ›

Further reading