- ------------------------------------------------------------------------- Debian Security Advisory DSA-2337-1 This email address is being protected from spambots. You need JavaScript enabled to view it. http://www.debian.org/security/ Thijs Kinkhorst November 6, 2011 http://www.debian.org/security/faq - ------------------------------------------------------------------------- Package : xen Vulnerability : several vulnerabilities Problem type : local Debian-specific: no CVE ID : CVE-2011-1166 CVE-2011-1583 CVE-2011-1898 CVE-2011-3262 Several vulnerabilities were discovered in the Xen virtual machine hypervisor. CVE-2011-1166 A 64-bit guest can get one of its vCPU'ss into non-kernel mode without first providing a valid non-kernel pagetable, thereby locking up the host system. CVE-2011-1583, CVE-2011-3262 Local users can cause a denial of service and possibly execute arbitrary code via a crafted paravirtualised guest kernel image. CVE-2011-1898 When using PCI passthrough on Intel VT-d chipsets that do not have interrupt remapping, guest OS can users to gain host OS privileges by writing to the interrupt injection registers. The oldstable distribution (lenny) contains a different version of Xen not affected by these problems. For the stable distribution (squeeze), this problem has been fixed in version 4.0.1-4. For the testing (wheezy) and unstable distribution (sid), this problem has been fixed in version 4.1.1-1. We recommend that you upgrade your xen packages. Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: http://www.debian.org/security/ Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.
Debian: DSA-2337-1: xen security update
Several vulnerabilities were discovered in the Xen virtual machine hypervisor. CVE-2011-1166
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