{"cve":"CVE-2011-4613","nvd":{"published":"2014-02-05T19:55:28.657","modified":"2026-06-16T23:35:08.707","status":"Modified","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.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-264"],"references":["http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=652249","http://www.debian.org/security/2011/dsa-2364","http://www.ubuntu.com/usn/USN-1349-1","http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=652249","http://www.debian.org/security/2011/dsa-2364"],"products":["canonical:ubuntu_linux","debian:debian_linux","ubuntu:linux","x.org:x_server"],"source":"nvd","synced_at":"2026-10-19T20:32:06.812358378+00:00"},"epss":{"cve":"CVE-2011-4613","score":0.00862,"percentile":0.58576,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}