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Debian Security Advisory DSA-3390-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
November 02, 2015 https://www.debian.org/security/faq
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Package : xen
CVE ID : CVE-2015-7835

It was discovered that the code to validate level 2 page table entries
is bypassed when certain conditions are satisfied. A malicious PV guest
administrator can take advantage of this flaw to gain privileges via a
crafted superpage mapping.

For the oldstable distribution (wheezy), this problem has been fixed
in version 4.1.4-3+deb7u9.

For the stable distribution (jessie), this problem has been fixed in
version 4.4.1-9+deb8u2.

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: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
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