CVE-2011-4105

LightDM before 1.0.6 allows local users to change ownership of arbitrary files via a symlink attack on ~/.Xauthority.

Published: 2012-02-17 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-4105 is rated Low Risk (11.4/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.05%). Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2011-4105

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-30 0.05% 0.05% -0.01%
2 2025-03-29 0.04% 0.05% +0.01%
3 2023-03-07 — 0.04% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-4105

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
1.9 2.0 LOW
AV:L/AC:M/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 3.4 2.9 [email protected]

Weakness enumeration for CVE-2011-4105

OS Trackers for CVE-2011-4105

vendor priority summary link
debian not yet assigned CVE-2011-4105 not yet assigned priority: Debian including 1 source packages (lightdm), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2011-4105
ubuntu medium CVE-2011-4105 medium priority: Ubuntu including 1 source packages (lightdm), 8 status rows across 8 suites (hardy, lucid, maverick, natty, oneiric, precise, quantal, upstream): DNE 3, released 3, ignored 1, needs-triage 1. https://ubuntu.com/security/CVE-2011-4105

Affected software / configurations for CVE-2011-4105

Vendor Product Version Raw CPE
robert_ancell lightdm <= 1.0.5 cpe:2.3:a:robert_ancell:lightdm:*:*:*:*:*:*:*:*
robert_ancell lightdm 0.0.1 cpe:2.3:a:robert_ancell:lightdm:0.0.1:*:*:*:*:*:*:*
robert_ancell lightdm 0.0.2 cpe:2.3:a:robert_ancell:lightdm:0.0.2:*:*:*:*:*:*:*
robert_ancell lightdm 0.0.3 cpe:2.3:a:robert_ancell:lightdm:0.0.3:*:*:*:*:*:*:*
robert_ancell lightdm 0.0.4 cpe:2.3:a:robert_ancell:lightdm:0.0.4:*:*:*:*:*:*:*
robert_ancell lightdm 0.1.0 cpe:2.3:a:robert_ancell:lightdm:0.1.0:*:*:*:*:*:*:*
robert_ancell lightdm 0.1.1 cpe:2.3:a:robert_ancell:lightdm:0.1.1:*:*:*:*:*:*:*
robert_ancell lightdm 0.1.2 cpe:2.3:a:robert_ancell:lightdm:0.1.2:*:*:*:*:*:*:*
robert_ancell lightdm 0.2.0 cpe:2.3:a:robert_ancell:lightdm:0.2.0:*:*:*:*:*:*:*
robert_ancell lightdm 0.2.1 cpe:2.3:a:robert_ancell:lightdm:0.2.1:*:*:*:*:*:*:*
robert_ancell lightdm 0.2.2 cpe:2.3:a:robert_ancell:lightdm:0.2.2:*:*:*:*:*:*:*
robert_ancell lightdm 0.2.3 cpe:2.3:a:robert_ancell:lightdm:0.2.3:*:*:*:*:*:*:*
robert_ancell lightdm 0.3.0 cpe:2.3:a:robert_ancell:lightdm:0.3.0:*:*:*:*:*:*:*
robert_ancell lightdm 0.3.1 cpe:2.3:a:robert_ancell:lightdm:0.3.1:*:*:*:*:*:*:*
robert_ancell lightdm 0.3.2 cpe:2.3:a:robert_ancell:lightdm:0.3.2:*:*:*:*:*:*:*
robert_ancell lightdm 0.3.3 cpe:2.3:a:robert_ancell:lightdm:0.3.3:*:*:*:*:*:*:*
robert_ancell lightdm 0.3.4 cpe:2.3:a:robert_ancell:lightdm:0.3.4:*:*:*:*:*:*:*
robert_ancell lightdm 0.3.5 cpe:2.3:a:robert_ancell:lightdm:0.3.5:*:*:*:*:*:*:*
robert_ancell lightdm 0.3.6 cpe:2.3:a:robert_ancell:lightdm:0.3.6:*:*:*:*:*:*:*
robert_ancell lightdm 0.4.0 cpe:2.3:a:robert_ancell:lightdm:0.4.0:*:*:*:*:*:*:*
robert_ancell lightdm 0.4.1 cpe:2.3:a:robert_ancell:lightdm:0.4.1:*:*:*:*:*:*:*
robert_ancell lightdm 0.4.2 cpe:2.3:a:robert_ancell:lightdm:0.4.2:*:*:*:*:*:*:*
robert_ancell lightdm 0.4.3 cpe:2.3:a:robert_ancell:lightdm:0.4.3:*:*:*:*:*:*:*
robert_ancell lightdm 0.4.4 cpe:2.3:a:robert_ancell:lightdm:0.4.4:*:*:*:*:*:*:*
robert_ancell lightdm 0.9.0 cpe:2.3:a:robert_ancell:lightdm:0.9.0:*:*:*:*:*:*:*
robert_ancell lightdm 0.9.1 cpe:2.3:a:robert_ancell:lightdm:0.9.1:*:*:*:*:*:*:*
robert_ancell lightdm 0.9.2 cpe:2.3:a:robert_ancell:lightdm:0.9.2:*:*:*:*:*:*:*
robert_ancell lightdm 0.9.3 cpe:2.3:a:robert_ancell:lightdm:0.9.3:*:*:*:*:*:*:*
robert_ancell lightdm 0.9.4 cpe:2.3:a:robert_ancell:lightdm:0.9.4:*:*:*:*:*:*:*
robert_ancell lightdm 0.9.5 cpe:2.3:a:robert_ancell:lightdm:0.9.5:*:*:*:*:*:*:*
robert_ancell lightdm 0.9.6 cpe:2.3:a:robert_ancell:lightdm:0.9.6:*:*:*:*:*:*:*
robert_ancell lightdm 0.9.7 cpe:2.3:a:robert_ancell:lightdm:0.9.7:*:*:*:*:*:*:*
robert_ancell lightdm 0.9.8 cpe:2.3:a:robert_ancell:lightdm:0.9.8:*:*:*:*:*:*:*
robert_ancell lightdm 1.0.0 cpe:2.3:a:robert_ancell:lightdm:1.0.0:*:*:*:*:*:*:*
robert_ancell lightdm 1.0.1 cpe:2.3:a:robert_ancell:lightdm:1.0.1:*:*:*:*:*:*:*
robert_ancell lightdm 1.0.2 cpe:2.3:a:robert_ancell:lightdm:1.0.2:*:*:*:*:*:*:*
robert_ancell lightdm 1.0.3 cpe:2.3:a:robert_ancell:lightdm:1.0.3:*:*:*:*:*:*:*
robert_ancell lightdm 1.0.4 cpe:2.3:a:robert_ancell:lightdm:1.0.4:*:*:*:*:*:*:*
robert_ancell lightdm 1.1.0 cpe:2.3:a:robert_ancell:lightdm:1.1.0:*:*:*:*:*:*:*

References for CVE-2011-4105

cvelogic Threat Intelligence