Advisories ยป MGASA-2014-0467

Updated qemu packages fix security vulnerabilities

Publication date: 21 Nov 2014
Type: security
Affected Mageia releases : 4
CVE: CVE-2014-3689 , CVE-2014-5263 , CVE-2014-7815


The Advanced Threat Research team at Intel Security reported that guest
provided parameter were insufficiently validated in rectangle functions in
the vmware-vga driver. A privileged guest user could use this flaw to write
into qemu address space on the host, potentially escalating their privileges
to those of the qemu host process (CVE-2014-3689).

It was discovered that QEMU incorrectly handled USB xHCI controller live
migration. An attacker could possibly use this issue to cause a denial of
service, or possibly execute arbitrary code (CVE-2014-5263).

James Spadaro of Cisco reported insufficiently sanitized bits_per_pixel from
the client in the QEMU VNC display driver. An attacker having access to the
guest's VNC console could use this flaw to crash the guest (CVE-2014-7815).

Additionally, the qemu update in MGASA-2014-0426 did not have USB redirection
support because Qemu 1.6.2 requires an updated libusbredirparser library.
This update has been built against the updated usbredirparser library.