Description

sudo before 1.8.12 does not ensure that the TZ environment variable is associated with a zoneinfo file, which allows local users to open arbitrary files for read access (but not view file contents) by running a program within an sudo session, as demonstrated by interfering with terminal output, discarding kernel-log messages, or repositioning tape drives.

References

http://openwall.com/lists/oss-security/2014/10/15/24

http://rhn.redhat.com/errata/RHSA-2015-1409.html

http://www.securitytracker.com/id/1033158

http://www.sudo.ws/alerts/tz.html

https://security.gentoo.org/glsa/201504-02

Details

Risk Information

CVSS v2

CVSS v3