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.
Metrics
CVSS 3.0 3.3/10
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://openwall.com/lists/oss-security/2014/10/15/24Exploit, Mailing List, Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-1409.html
- http://www.securitytracker.com/id/1033158
- http://www.sudo.ws/alerts/tz.htmlVendor Advisory
- https://security.gentoo.org/glsa/201504-02
- http://openwall.com/lists/oss-security/2014/10/15/24Exploit, Mailing List, Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-1409.html
- http://www.securitytracker.com/id/1033158
- http://www.sudo.ws/alerts/tz.htmlVendor Advisory
- https://security.gentoo.org/glsa/201504-02
Timeline
- Published
- Apr 24, 2017
- Last modified
- Jun 17, 2026
- NVD status
- Modified