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GLSA
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Joined: 12 May 2004
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PostPosted: Mon Jul 10, 2017 5:26 pm    Post subject: [ GLSA 201705-11 ] Xen Reply with quote

Gentoo Linux Security Advisory

Title: Xen: Multiple vulnerabilities (GLSA 201705-11)
Severity: normal
Exploitable: local
Date: 2017-05-26
Bug(s): #615980
ID: 201705-11

Synopsis

Multiple vulnerabilities have been found in Xen, the worst of which
could allow for privilege escalation.


Background

Xen is a bare-metal hypervisor.

Affected Packages

Package: app-emulation/xen
Vulnerable: < 4.7.2-r1
Unaffected: >= 4.7.2-r1
Architectures: All supported architectures

Package: app-emulation/xen-tools
Vulnerable: < 4.7.2
Unaffected: >= 4.7.2
Architectures: All supported architectures

Package: app-emulation/xen-pvgrub
Vulnerable: < 4.7.2
Unaffected: >= 4.7.2
Architectures: All supported architectures


Description

Multiple vulnerabilities have been discovered in Xen. Please review the
CVE identifiers and Xen Security Advisory referenced below for details.


Impact

A local attacker could potentially execute arbitrary code with
privileges of Xen (QEMU) process on the host, gain privileges on the host
system, or cause a Denial of Service condition.


Workaround

There is no known workaround at this time.

Resolution

All Xen users should upgrade to the latest version:
Code:
# emerge --sync
      # emerge --ask --oneshot --verbose ">=app-emulation/xen-4.7.2-r1:0"
   
All Xen Tools users should upgrade to the latest version:
Code:
# emerge --sync
      # emerge --ask --oneshot --verbose ">=app-emulation/xen-tools-4.7.2:0"
   
All Xen pvgrub users should upgrade to the latest version:
Code:
# emerge --sync
      # emerge --ask --oneshot --verbose
      ">=app-emulation/xen-pvgrub-4.7.2:0"
   


References

CVE-2017-8903
CVE-2017-8904
CVE-2017-8905
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