Ubuntu PT Chown Privilege Escalation

Source: http://www.halfdog.net/Security/2015/PtChownArbitraryPtsAccessViaUserNamespace/ Introduction Problem description: With Ubuntu Wily and earlier, /usr/lib/ptchown was used to change ownership of slave pts devices in /dev/pts to the same uid holding the master file descriptor for the slave...

PT-2016-1519

Name of the Vulnerable Software and Affected Versions glibc versions prior to 2.19-18+deb8u4 on Debian jessie glibc versions prior to 2.15-0ubuntu10.14 on Ubuntu 12.04 LTS glibc versions prior to 2.19-0ubuntu6.8 on Ubuntu 14.04 LTS glibc versions prior to 2.21-0ubuntu4.2 on Ubuntu 15.10 glibc...

Ubuntu 15.10 - PT Chown Arbitrary PTs Access Via User Namespace Privilege Escalation

Ubuntu 15.10 - PT Chown Arbitrary PTs Access Via User Namespace Privilege Escalation Source: http://www.halfdog.net/Security/2015/PtChownArbitraryPtsAccessViaUserNamespace/ Introduction Problem description: With Ubuntu Wily and earlier, /usr/lib/ptchown was used to change ownership of slave pts...

Ubuntu < 15.10 - PT Chown Arbitrary PTs Access Via User Namespace Privilege Escalation

Source: http://www.halfdog.net/Security/2015/PtChownArbitraryPtsAccessViaUserNamespace/ Introduction Problem description: With Ubuntu Wily and earlier, /usr/lib/ptchown was used to change ownership of slave pts devices in /dev/pts to the same uid holding the master file descriptor for the slave...

PT-2013-3597

Name of the Vulnerable Software and Affected Versions glibc versions prior to 2.18 Description The issue concerns a problem with pt chown in the GNU C Library, where it does not properly check permissions for tty files. This allows local users to change the permission on the files and obtain acce...