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VPR Score: 7.3
SynopsisThe remote Debian host is missing a security update.
DescriptionMultiple vulnerabilities have been discovered in the Xen hypervisor :
Jann Horn discovered a race condition that can cause a stale TLB entry which might result in privilege escalation, denial of service or information leak.
Roger Pau Monné discovered a hypervisor stack leak in the x86 I/O intercept code, resulting in information leaks.
Andrew Cooper discovered that incorrect handling of self-linear shadow mappings for translated guests might result in denial of service or privilege escalation.
Jan Beulich discovered that page type reference counts are mishandled which may result in denial of service.
Jann Horn discovered that crafted page-table stacking might result in denial of service, privilege escalation or information leaks.
For Debian 7 'Wheezy', these problems have been fixed in version 4.1.6.lts1-10.
We recommend that you upgrade your xen packages.
NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
SolutionUpgrade the affected packages.