Synopsis
Moderate: xinetd security update
Type/Severity
Security Advisory: Moderate
Topic
An updated xinetd package that fixes one security issue is now available
for Red Hat Enterprise Linux 5 and 6.
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 xinetd package provides a secure replacement for inetd, the Internet
services daemon. xinetd provides access control for all services based on
the address of the remote host and/or on time of access, and can prevent
denial-of-access attacks.
It was found that xinetd ignored the user and group configuration
directives for services running under the tcpmux-server service. This flaw
could cause the associated services to run as root. If there was a flaw in
such a service, a remote attacker could use it to execute arbitrary code
with the privileges of the root user. (CVE-2013-4342)
Red Hat would like to thank Thomas Swan of FedEx for reporting this issue.
All xinetd 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
-
Red Hat Enterprise Linux Server 6 x86_64
-
Red Hat Enterprise Linux Server 6 i386
-
Red Hat Enterprise Linux Server 5 x86_64
-
Red Hat Enterprise Linux Server 5 ia64
-
Red Hat Enterprise Linux Server 5 i386
-
Red Hat Enterprise Linux Server - Extended Update Support 6.4 x86_64
-
Red Hat Enterprise Linux Server - Extended Update Support 6.4 i386
-
Red Hat Enterprise Linux Server - AUS 6.4 x86_64
-
Red Hat Enterprise Linux Workstation 6 x86_64
-
Red Hat Enterprise Linux Workstation 6 i386
-
Red Hat Enterprise Linux Workstation 5 x86_64
-
Red Hat Enterprise Linux Workstation 5 i386
-
Red Hat Enterprise Linux Desktop 6 x86_64
-
Red Hat Enterprise Linux Desktop 6 i386
-
Red Hat Enterprise Linux Desktop 5 x86_64
-
Red Hat Enterprise Linux Desktop 5 i386
-
Red Hat Enterprise Linux for IBM z Systems 6 s390x
-
Red Hat Enterprise Linux for IBM z Systems 5 s390x
-
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 6.4 s390x
-
Red Hat Enterprise Linux for Power, big endian 6 ppc64
-
Red Hat Enterprise Linux for Power, big endian 5 ppc
-
Red Hat Enterprise Linux for Power, big endian - Extended Update Support 6.4 ppc64
-
Red Hat Enterprise Linux for Scientific Computing 6 x86_64
-
Red Hat Enterprise Linux Server from RHUI 6 x86_64
-
Red Hat Enterprise Linux Server from RHUI 6 i386
-
Red Hat Enterprise Linux Server from RHUI 5 x86_64
-
Red Hat Enterprise Linux Server from RHUI 5 i386
-
Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.4 x86_64
-
Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.4 i386
-
Red Hat Gluster Storage Server for On-premise 2.1 x86_64
-
Red Hat Storage for Public Cloud (via RHUI) 2.1 x86_64
-
Red Hat Enterprise Linux EUS Compute Node 6.4 x86_64
Fixes
- BZ - 1006100 - CVE-2013-4342 xinetd: ignores user and group directives for tcpmux services
CVEs
References
Vulmon