From:
[email protected]
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- ------------------------------------------------------------------------- Debian Security Advisory DSA-3633-1
[email protected] https://www.debian.org/security/ Moritz Muehlenhoff
July 27, 2016
https://www.debian.org/security/faq
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Package : xen
CVE ID : CVE-2015-8338 CVE-2016-4480 CVE-2016-4962 CVE-2016-5242
CVE-2016-6258
Multiple vulnerabilities have been discovered in the Xen hypervisor. The
Common Vulnerabilities and Exposures project identifies the following
problems:
CVE-2015-8338
Julien Grall discovered that Xen on ARM was susceptible to denial
of service via long running memory operations.
CVE-2016-4480
Jan Beulich discovered that incorrect page table handling could
result in privilege escalation inside a Xen guest instance.
CVE-2016-4962
Wei Liu discovered multiple cases of missing input sanitising in
libxl which could result in denial of service.
CVE-2016-5242
Aaron Cornelius discovered that incorrect resource handling on
ARM systems could result in denial of service.
CVE-2016-6258
Jeremie Boutoille discovered that incorrect pagetable handling in
PV instances could result in guest to host privilege escalation.
For the stable distribution (jessie), these problems have been fixed in
version 4.4.1-9+deb8u6.
For the unstable distribution (sid), these problems will be fixed soon.
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:
[email protected]
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