First published: Mon Oct 06 2014(Updated: )
The qemuDomainGetBlockIoTune function in qemu/qemu_driver.c in libvirt before 1.2.9, when a disk has been hot-plugged or removed from the live image, allows remote attackers to cause a denial of service (crash) or read sensitive heap information via a crafted blkiotune query, which triggers an out-of-bounds read.
Credit: secalert@redhat.com
Affected Software | Affected Version | How to fix |
---|---|---|
Ubuntu Linux | =10.04 | |
Ubuntu Linux | =12.04 | |
Ubuntu Linux | =14.04 | |
libvirt | <=1.2.8 | |
libvirt | =1.2.0 | |
libvirt | =1.2.1 | |
libvirt | =1.2.2 | |
libvirt | =1.2.3 | |
libvirt | =1.2.4 | |
libvirt | =1.2.5 | |
libvirt | =1.2.6 | |
libvirt | =1.2.7 |
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CVE-2014-3633 is classified as a denial of service vulnerability that can crash the application or leak sensitive heap information.
To fix CVE-2014-3633, update libvirt to version 1.2.9 or later as it contains the necessary patches.
CVE-2014-3633 affects libvirt versions up to and including 1.2.8 and several Ubuntu Linux versions including 10.04, 12.04, and 14.04.
Yes, CVE-2014-3633 can be exploited by remote attackers via crafted blkiotune queries.
Exploitation of CVE-2014-3633 may lead to application crashes or exposure of sensitive information from the heap.