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Debian Security Advisory DSA-3140-1 security@debian.org
http://www.debian.org/security/ Moritz Muehlenhoff
January 27, 2015 http://www.debian.org/security/faq
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Package : xen
CVE ID : CVE-2014-8594 CVE-2014-8595 CVE-2014-8866 CVE-2014-8867
CVE-2014-9030
Multiple security issues have been discovered in the Xen virtualisation
solution which may result in denial of service, information disclosure
or privilege escalation.
CVE-2014-8594
Roger Pau Monne and Jan Beulich discovered that incomplete
restrictions on MMU update hypercalls may result in privilege
escalation.
CVE-2014-8595
Jan Beulich discovered that missing privilege level checks in the
x86 emulation of far branches may result in privilege escalation.
CVE-2014-8866
Jan Beulich discovered that an error in compatibility mode hypercall
argument translation may result in denial of service.
CVE-2014-8867
Jan Beulich discovered that an insufficient restriction in
acceleration support for the “REP MOVS” instruction may result in
denial of service.
CVE-2014-9030
Andrew Cooper discovered a page reference leak in MMU_MACHPHYS_UPDATE
handling, resulting in denial of service.
For the stable distribution (wheezy), these problems have been fixed in
version 4.1.4-3+deb7u4.
For the upcoming stable distribution (jessie), these problems have been
fixed in version 4.4.1-4.
For the unstable distribution (sid), these problems have been fixed in
version 4.4.1-4.
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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