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AUSCERT External Security Bulletin Redistribution
ESB-2014.2151
USN-2404-1: libvirt vulnerabilities
17 November 2014
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AusCERT Security Bulletin Summary
---------------------------------
Product: libvirt
Publisher: Ubuntu
Operating System: Ubuntu
UNIX variants (UNIX, Linux, OSX)
Windows
Impact/Access: Denial of Service -- Remote/Unauthenticated
Access Confidential Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2014-7823 CVE-2014-3657
Reference: ESB-2014.1743
Original Bulletin:
http://www.ubuntu.com/usn/USN-2404-1/
Comment: This advisory references vulnerabilities in products which run on
platforms other than Ubuntu. It is recommended that administrators
running libvirt check for an updated version of the software for
their operating system.
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USN-2404-1: libvirt vulnerabilities
Ubuntu Security Notice USN-2404-1
11th November, 2014
libvirt vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
Ubuntu 14.10
Ubuntu 14.04 LTS
Summary
Several security issues were fixed in libvirt.
Software description
libvirt - Libvirt virtualization toolkit
Details
Pavel Hrdina discovered that libvirt incorrectly handled locking when
processing the virConnectListAllDomains command. An attacker could use this
issue to cause libvirtd to hang, resulting in a denial of service.
(CVE-2014-3657)
Eric Blake discovered that libvirt incorrectly handled permissions when
processing the qemuDomainFormatXML command. An attacker with read-only
privileges could possibly use this to gain access to certain information
from the domain xml file. (CVE-2014-7823)
Update instructions
The problem can be corrected by updating your system to the following package
version:
Ubuntu 14.10:
libvirt0 1.2.8-0ubuntu11.1
libvirt-bin 1.2.8-0ubuntu11.1
Ubuntu 14.04 LTS:
libvirt0 1.2.2-0ubuntu13.1.7
libvirt-bin 1.2.2-0ubuntu13.1.7
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to reboot your computer to make
all the necessary changes.
References
CVE-2014-3657, CVE-2014-7823
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