Debian Security Advisory
DSA-3066-1 qemu -- security update
- Date Reported:
- 06 Nov 2014
- Affected Packages:
- Security database references:
- In the Debian bugtracking system: Bug 765496.
In Mitre's CVE dictionary: CVE-2014-3689, CVE-2014-7815.
- More information:
Several vulnerabilities were discovered in qemu, a fast processor emulator.
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.
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.
For the stable distribution (wheezy), these problems have been fixed in version 1.1.2+dfsg-6a+deb7u5.
For the unstable distribution (sid), these problems have been fixed in version 2.1+dfsg-7.
We recommend that you upgrade your qemu packages.