Debian Security Advisory

DSA-1384-1 xen-utils -- several vulnerabilities

Date Reported:
05 Oct 2007
Affected Packages:
Security database references:
In the Debian bugtracking system: Bug 444430, Bug 444007.
In Mitre's CVE dictionary: CVE-2007-4993, CVE-2007-1320.
More information:

Several local vulnerabilities have been discovered in the Xen hypervisor packages which may lead to the execution of arbitrary code. The Common Vulnerabilities and Exposures project identifies the following problems:

  • CVE-2007-4993

    By use of a specially crafted grub configuration file a domU user may be able to execute arbitrary code upon the dom0 when pygrub is being used.

  • CVE-2007-1320

    Multiple heap-based buffer overflows in the Cirrus VGA extension, provided by QEMU, may allow local users to execute arbitrary code via bitblt heap overflow.

For the stable distribution (etch), these problems have been fixed in version 3.0.3-0-3.

For the unstable distribution (sid), these problems will be fixed soon.

We recommend that you upgrade your xen-utils package.

Fixed in:

Debian GNU/Linux 4.0 (etch)

Architecture-independent component:
Intel IA-32:

MD5 checksums of the listed files are available in the original advisory.