Overly broad permissions can turn one compromised account into a much larger security problem. Learn how to reduce unnecessary access, review privileges, and apply least privilege across modern Linux systems. Review Linux Privileges×

Alerts This Week
Warning Icon 1 461
Alerts This Week
Warning Icon 1 461

Red Hat RHEL 5 RHSA-2011:0478-01 Moderate: Libvirt Error Handling Issue

red hat
Calendar Grey May 2, 2011
Scroller Redhat
Canonical advises upgrading the Xorg server for Ubuntu 20.04 to rectify a substantial security vulnerability concerning local user exploits.
Updated libvirt packages that fix one security issue are now available for Red Hat Enterprise Linux 5

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/kb/docs/DOC-11259

Summary

The libvirt library is a C API for managing and interacting with the virtualization capabilities of Linux and other operating systems. In addition, libvirt provides tools for remotely managing virtualized systems.
A flaw was found in the way libvirtd handled error reporting for concurrent connections. A remote attacker able to establish read-only connections to libvirtd on a server could use this flaw to crash libvirtd. (CVE-2011-1486)
All libvirt users are advised to upgrade to these updated packages, which contain backported patches to resolve this issue. After installing the updated packages, libvirtd must be restarted ("service libvirtd restart") for this update to take effect.

Topics%20covered

Topics Covered

security advisory update red hat moderate severity remote threat error handling libvirt

References

https://access.redhat.com/security/cve/CVE-2011-1486 https://access.redhat.com/security/updates/classification/#moderate

Package List

RHEL Desktop Multi OS (v. 5 client):
Source:
i386: libvirt-0.8.2-15.el5_6.4.i386.rpm libvirt-debuginfo-0.8.2-15.el5_6.4.i386.rpm libvirt-devel-0.8.2-15.el5_6.4.i386.rpm libvirt-python-0.8.2-15.el5_6.4.i386.rpm
x86_64: libvirt-0.8.2-15.el5_6.4.i386.rpm libvirt-0.8.2-15.el5_6.4.x86_64.rpm libvirt-debuginfo-0.8.2-15.el5_6.4.i386.rpm libvirt-debuginfo-0.8.2-15.el5_6.4.x86_64.rpm libvirt-devel-0.8.2-15.el5_6.4.i386.rpm libvirt-devel-0.8.2-15.el5_6.4.x86_64.rpm libvirt-python-0.8.2-15.el5_6.4.x86_64.rpm
RHEL Virtualization (v. 5 server):
Source:
i386: libvirt-0.8.2-15.el5_6.4.i386.rpm libvirt-debuginfo-0.8.2-15.el5_6.4.i386.rpm libvirt-devel-0.8.2-15.el5_6.4.i386.rpm libvirt-python-0.8.2-15.el5_6.4.i386.rpm
ia64: libvirt-0.8.2-15.el5_6.4.ia64.rpm libvirt-debuginfo-0.8.2-15.el5_6.4.ia64.rpm libvirt-devel-0.8.2-15.el5_6.4.ia64.rpm libvirt-python-0.8.2-15.el5_6.4.ia64.rpm
x86_64: libvirt-0.8.2-15.el5_6.4.i386.rpm libvirt-0.8.2-15.el5_6.4.x86_64.rpm libvirt-debuginfo-0.8.2-15.el5_6.4.i386.rpm libvirt-debuginfo-0.8.2-15.el5_6.4.x86_64.rpm libvirt-devel-0.8.2-15.el5_6.4.i386.rpm libvirt-devel-0.8.2-15.el5_6.4.x86_64.rpm libvirt-python-0.8.2-15.el5_6.4.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from

Read the Full Advisory


Advisory ID: RHSA-2011:0478-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2011:0478.html
Issue date: 2011-05-02

Topic

Updated libvirt packages that fix one security issue are now available forRed Hat Enterprise Linux 5.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 update red hat moderate severity remote threat error handling libvirt

Relevant Releases Architectures

RHEL Desktop Multi OS (v. 5 client) - i386, x86_64

RHEL Virtualization (v. 5 server) - i386, ia64, x86_64

Bugs Fixed

693391 - CVE-2011-1486 libvirt: error reporting in libvirtd is not thread safe

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.