PT-2019-6664 · Canonical · Lightdm

Sebastian Krahmer · Published 2019-11-19 · Updated 2024-06-15 · CVE-2011-3349

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions lightdm versions prior to 0.9.6

Description The issue allows a local user to potentially escalate privileges by overwriting root-owned files via a symlink. This is possible because lightdm writes in .dmrc and Xauthority files using root permissions while the files are in user-controlled folders.

Recommendations For versions prior to 0.9.6, update to version 0.9.6 or later to resolve the issue.

Fix

Improper Privilege Management

Weakness Enumeration

CWE-269

Related Identifiers

CVE-2011-3349

OPENSUSE-SU-2024:10033-1

Affected Products

Lightdm

References · 14

• https://security-tracker.debian.org/tracker/CVE-2011-3349 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2011-3349 · Security Note
• https://osv.dev/vulnerability/CVE-2011-3349 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2011-3349 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:10033-1 · Vendor Advisory
• https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=639151 · Note
• https://suse.com/security/cve/CVE-2012-1111 · Note
• https://access.redhat.com/security/cve/cve-2011-3349 · Note
• https://suse.com/security/cve/CVE-2011-4105 · Note
• https://securityfocus.com/bid/50506 · Note
• https://suse.com/security/cve/CVE-2011-3349 · Note
• https://seclists.org/oss-sec/2011/q3/393 · Note
• https://suse.com/security/cve/CVE-2011-3153 · Note
• https://bugs.launchpad.net/debian/+source/lightdm/+bug/834079 · Note