Privilege escalation in Lightdm
CVE-2011-3349
lightdm before 0.9.6 writes in .dmrc and Xauthority files using root permissions while the files are in user controlled folders. A local user can overwrite root-owned files via a symlink, which can allow possible privilege escalation.
Vulnerability class: Privilege Escalation
EPSS: 0.004 (28.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Lightdm — versions before 0.9.6
- Lightdm_project Lightdm
Weakness classification (CWE)
References
- secalert@redhat.com (Third Party Advisory, x_refsource_MISC)
- secalert@redhat.com (x_refsource_MISC, Broken Link)
- secalert@redhat.com (VDB Entry, Third Party Advisory, x_refsource_MISC)
- secalert@redhat.com (Mailing List, Third Party Advisory, x_refsource_MISC)
- secalert@redhat.com (Third Party Advisory, x_refsource_MISC)
- secalert@redhat.com (Mailing List, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2011-3349?
- CVE-2011-3349 is a high-severity vulnerability in Lightdm, classified under Improper Privilege Management. CVSS score: 7.8/10. Published 2019-11-19.
- How severe is CVE-2011-3349?
- High severity. CVSS v3 base score is 7.8 out of 10.