Issued:
2014-03-10
Updated:
2014-03-10

RHSA-2014:0266 - Moderate: sudo security update

Synopsis

Moderate: sudo security update

Type/Severity

Security Advisory Moderate

Topic

An updated sudo package that fixes one security issue is now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having Moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

Description

The sudo (superuser do) utility allows system administrators to give certain users the ability to run commands as root.

A flaw was found in the way sudo handled its blacklist of environment variables. When the "env_reset" option was disabled, a user permitted to run certain commands via sudo could use this flaw to run such a command with one of the blacklisted environment variables set, allowing them to run an arbitrary command with the target user's privileges. (CVE-2014-0106)

Note: This issue does not affect the default configuration of the sudo package as shipped with Red Hat Enterprise Linux 5.

Red Hat would like to thank Todd C. Miller for reporting this issue. Upstream acknowledges Sebastien Macke as the original reporter.

All sudo users are advised to upgrade to this updated package, which contains a backported patch to correct this issue.

Solution

Before applying this update, make sure all previously released errata relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/site/articles/11258

Affected Products

ProductVersionArch
Red Hat Enterprise Linux for Power, big endian5ppc
Red Hat Enterprise Linux for IBM z Systems5s390x
Red Hat Enterprise Linux Workstation5x86_64
Red Hat Enterprise Linux Workstation5i386
Red Hat Enterprise Linux Server5x86_64
Red Hat Enterprise Linux Server5ia64
Red Hat Enterprise Linux Server5i386
Red Hat Enterprise Linux Server from RHUI5x86_64
Red Hat Enterprise Linux Server from RHUI5i386
Red Hat Enterprise Linux Desktop5x86_64
Red Hat Enterprise Linux Desktop5i386

Updated Packages

  • sudo-1.7.2p1-29.el5_10.ia64.rpm
  • sudo-1.7.2p1-29.el5_10.i386.rpm
  • sudo-1.7.2p1-29.el5_10.ppc.rpm
  • sudo-debuginfo-1.7.2p1-29.el5_10.x86_64.rpm
  • sudo-1.7.2p1-29.el5_10.x86_64.rpm
  • sudo-debuginfo-1.7.2p1-29.el5_10.i386.rpm
  • sudo-1.7.2p1-29.el5_10.src.rpm
  • sudo-debuginfo-1.7.2p1-29.el5_10.ppc.rpm
  • sudo-1.7.2p1-29.el5_10.s390x.rpm
  • sudo-debuginfo-1.7.2p1-29.el5_10.ia64.rpm
  • sudo-debuginfo-1.7.2p1-29.el5_10.s390x.rpm

Fixes

CVEs

References

Additional information