Home/CVE/pkexec, when used with --user nonpriv, allows local users to escape to the parent session via a crafted TIOCSTI ioctl ca
CVE

CVE-2016-2568

pkexec, when used with --user nonpriv, allows local users to escape to the parent session via a crafted TIOCSTI ioctl ca

pkexec, when used with --user nonpriv, allows local users to escape to the parent session via a crafted TIOCSTI ioctl call, which pushes characters to the terminal's input buffer.

HIGH · CVSS 7.8 EPSS 0.00131
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-116Improper Encoding or Escaping of Output
▤

Affected Products & Versions

2
freedesktop polkitall versions
redhat enterprise linuxall versions
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD13 Feb 2017 · 06:59 PM
CVSS VectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
⚑

Vendor Advisories

1
msrcCVE-2016-2568
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.openwall.com/lists/oss-security/2016/02/26/3Mailing ListThird Party Advisory
https://access.redhat.com/security/cve/cve-2016-2568Third Party Advisory
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=816062Mailing ListThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1300746Issue TrackingThird Party Advisory
https://ubuntu.com/security/CVE-2016-2568Third Party Advisory
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