Debian Security Advisory
DSA-3140-1 xen -- security update
- Date Reported:
- 27 Jan 2015
- Affected Packages:
- Security database references:
- In Mitre's CVE dictionary: CVE-2014-8594, CVE-2014-8595, CVE-2014-8866, CVE-2014-8867, CVE-2014-9030.
- More information:
Multiple security issues have been discovered in the Xen virtualisation solution which may result in denial of service, information disclosure or privilege escalation.
Roger Pau Monne and Jan Beulich discovered that incomplete restrictions on MMU update hypercalls may result in privilege escalation.
Jan Beulich discovered that missing privilege level checks in the x86 emulation of far branches may result in privilege escalation.
Jan Beulich discovered that an error in compatibility mode hypercall argument translation may result in denial of service.
Jan Beulich discovered that an insufficient restriction in acceleration support for the
REP MOVSinstruction may result in denial of service.
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.