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Red Hat 6: RHSA-2013:0884-01 Moderate: libtirpc Crash Risk

red hat
Calendar Grey May 30, 2013
Scroller Redhat
Routine security patch for libtirpc resolves a significant memory handling vulnerability in Red Hat Enterprise Linux 6.
Updated libtirpc packages that fix one security issue are now available for Red Hat Enterprise Linux 6

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/knowledge/articles/11258

Summary

These packages provide a transport-independent RPC (remote procedure call) implementation.
A flaw was found in the way libtirpc decoded RPC requests. A specially-crafted RPC request could cause libtirpc to attempt to free a buffer provided by an application using the library, even when the buffer was not dynamically allocated. This could cause an application using libtirpc, such as rpcbind, to crash. (CVE-2013-1950)
Red Hat would like to thank Michael Armstrong for reporting this issue.
Users of libtirpc should upgrade to these updated packages, which contain a backported patch to correct this issue. All running applications using libtirpc must be restarted for the update to take effect.

Topics%20covered

Topics Covered

security advisory software update Red Hat Enterprise Linux moderate severity memory management libtirpc remote procedure call

References

https://access.redhat.com/security/cve/CVE-2013-1950 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source:
i386: libtirpc-0.2.1-6.el6_4.i686.rpm libtirpc-debuginfo-0.2.1-6.el6_4.i686.rpm
x86_64: libtirpc-0.2.1-6.el6_4.i686.rpm libtirpc-0.2.1-6.el6_4.x86_64.rpm libtirpc-debuginfo-0.2.1-6.el6_4.i686.rpm libtirpc-debuginfo-0.2.1-6.el6_4.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
Source:
i386: libtirpc-debuginfo-0.2.1-6.el6_4.i686.rpm libtirpc-devel-0.2.1-6.el6_4.i686.rpm
x86_64: libtirpc-debuginfo-0.2.1-6.el6_4.i686.rpm libtirpc-debuginfo-0.2.1-6.el6_4.x86_64.rpm libtirpc-devel-0.2.1-6.el6_4.i686.rpm libtirpc-devel-0.2.1-6.el6_4.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source:
x86_64: libtirpc-0.2.1-6.el6_4.i686.rpm libtirpc-0.2.1-6.el6_4.x86_64.rpm libtirpc-debuginfo-0.2.1-6.el6_4.i686.rpm libtirpc-debuginfo-0.2.1-6.el6_4.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional (v. 6):
Source:
x86_64: libtirpc-debuginfo-0.2.1-6.el6_4.i686.rpm libtirpc-debuginfo-0.2.1-6.el6_4.x86_64.rpm libtirpc-devel-0.2.1-6.el6_4.i686.rpm libtirpc-devel-0.2.1-6.el6_4.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source:
i386: libtirpc-0.2.1-6.el6_4.i686.rpm libtirpc-debuginfo-0.2.1-6.el6_4.i686.rpm
ppc64: libtirpc-0.2.1-6.el6_4.ppc.rpm libtirpc-0.2.1-6.el6_4.ppc64.rpm libtirpc-debuginfo-0.2.1-6.el6_4.ppc.rpm

Read the Full Advisory


Advisory ID: RHSA-2013:0884-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2013:0884.html
Issue date: 2013-05-30

Topic

Updated libtirpc packages that fix one security issue are now available forRed Hat Enterprise Linux 6.The Red Hat Security Response Team has rated this update as having moderatesecurity impact. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available from the CVE link inthe References section.

Topics%20covered

Topics Covered

security advisory software update Red Hat Enterprise Linux moderate severity memory management libtirpc remote procedure call

Relevant Releases Architectures

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64

Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64

Red Hat Enterprise Linux HPC Node (v. 6) - x86_64

Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

Bugs Fixed

948378 - CVE-2013-1950 libtirpc: invalid pointer free leads to rpcbind daemon crash

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