CVE-2011-4613

medium

Published 2014-02-05 · Modified 2026-04-29

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

—

CVSS v4 NEW

—

not yet in upstream

VIR risk

5.6

Description

The X.Org X wrapper (xserver-wrapper.c) in Debian GNU/Linux and Ubuntu Linux does not properly verify the TTY of a user who is starting X, which allows local users to bypass intended access restrictions by associating stdin with a file that is misinterpreted as the console TTY.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Exploit-DB

EDB-18040 local linux

vladz · 2011-10-28

X.Org xorg 1.4 < 1.11.2 - File Permission Change

Source code queued for fetch — refresh in a moment.

OS impact

Ubuntu Affected 4 releases

Version	Status	Fixed in
11.10	Affected	—
11.04	Affected	—
10.10	Affected	—
10.04	Affected	—

Debian Mixed 6 releases

Version	Status	Fixed in
trixie	Fixed	`1:7.6+10`
sid	Fixed	`1:7.6+10`
forky	Fixed	`1:7.6+10`
bullseye	Fixed	`1:7.6+10`
bookworm	Fixed	`1:7.6+10`
—	Affected	—

Application impact

Vendor	Product	Versions	Fixed
x.org	x_server	`-`

References

CWEs

CWE-264

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.