RHSA-2017:1381 - Security Advisory
Important: sudo security update
Security Advisory: Important
An update for sudo is now available for Red Hat Enterprise Linux 5 Extended Lifecycle Support.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
The sudo packages contain the sudo utility which allows system administrators to provide certain users with the permission to execute privileged commands, which are used for system management purposes, without having to log in as root.
- A flaw was found in the way sudo parsed tty information from the process status file in the proc filesystem. A local user with privileges to execute commands via sudo could use this flaw to escalate their privileges to root. (CVE-2017-1000367)
Red Hat would like to thank Qualys Security for reporting this issue.
For details on how to apply this update, which includes the changes described in this advisory, refer to:
- Red Hat Enterprise Linux Server - Extended Life Cycle Support 5 x86_64
- Red Hat Enterprise Linux Server - Extended Life Cycle Support 5 i386
- Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 5 s390x
- BZ - 1453074 - CVE-2017-1000367 sudo: Privilege escalation in via improper get_process_ttyname() parsing
Red Hat Enterprise Linux Server - Extended Life Cycle Support 5
Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 5