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kernel: x86: espfix not working for 32-bit KVM paravirt guests

🗓️ 10 May 2016 18:43:57Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 1 Views

Espfix fails for 32-bit kernel virtual machine paravirtualized guests, leaking kernel stack addresses.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
Tenable Nessus		CentOS 6 : kernel (CESA-2016:0855)
17 May 201600:00
–nessus
Tenable Nessus		Debian DLA-155-1 : linux-2.6 security update
26 Mar 201500:00
–nessus
Tenable Nessus		EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1527)
14 May 201900:00
–nessus
Tenable Nessus		Fedora 19 : kernel-3.14.27-100.fc19 (2014-17244)
6 Jan 201500:00
–nessus
Tenable Nessus		Fedora 20 : kernel-3.17.7-200.fc20 (2014-17283)
22 Dec 201400:00
–nessus
Tenable Nessus		Fedora 21 : kernel-3.17.7-300.fc21 (2014-17293)
22 Dec 201400:00
–nessus
Tenable Nessus		openSUSE Security Update : the Linux Kernel (openSUSE-2015-301)
14 Apr 201500:00
–nessus
Tenable Nessus		openSUSE Security Update : Linux Kernel (openSUSE-2015-302)
14 Apr 201500:00
–nessus
Tenable Nessus		Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2015-3012)
20 Mar 201500:00
–nessus
Tenable Nessus		Oracle Linux 6 : kernel (ELSA-2016-0855)
18 May 201600:00
–nessus
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux6ppc64kernel0:2.6.32-642.el6kernel-0:2.6.32-642.el6.ppc64.rpm
Red Hat Enterprise Linux6s390xkernel0:2.6.32-642.el6kernel-0:2.6.32-642.el6.s390x.rpm
Red Hat Enterprise Linux6x86_64kernel0:2.6.32-642.el6kernel-0:2.6.32-642.el6.x86_64.rpm
Red Hat Enterprise Linux6anykernel0:2.6.32-642.el6.i686kernel-0:2.6.32-642.el6.i686.noarch.rpm
Red Hat Enterprise Linux6anykernel-abi-whitelists0:2.6.32-642.el6.noarchkernel-abi-whitelists-0:2.6.32-642.el6.noarch.noarch.rpm
Red Hat Enterprise Linux6ppc64kernel-bootwrapper0:2.6.32-642.el6kernel-bootwrapper-0:2.6.32-642.el6.ppc64.rpm
Red Hat Enterprise Linux6ppc64kernel-debug0:2.6.32-642.el6kernel-debug-0:2.6.32-642.el6.ppc64.rpm
Red Hat Enterprise Linux6s390xkernel-debug0:2.6.32-642.el6kernel-debug-0:2.6.32-642.el6.s390x.rpm
Red Hat Enterprise Linux6x86_64kernel-debug0:2.6.32-642.el6kernel-debug-0:2.6.32-642.el6.x86_64.rpm
Red Hat Enterprise Linux6anykernel-debug0:2.6.32-642.el6.i686kernel-debug-0:2.6.32-642.el6.i686.noarch.rpm
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28 Jun 2026 12:27Current
6.7Medium risk
Vulners AI Score6.7
CVSS 21.9
CVSS 3.13.3
EPSS0.00703
espfixthirty two bitkernel virtual machineparavirtualizedunprivileged userkernel stack addresses
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