CVE-2014-8134 Information

Description

The paravirt_ops_setup function in arch/x86/kernel/kvm.c in the Linux kernel through 3.18 uses an improper paravirt_enabled setting for KVM guest kernels which makes it easier for guest OS users to bypass the ASLR protection mechanism via a crafted application that reads a 16-bit value.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Reference

http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00009.html http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html http://people.canonical.com/~ubuntu-security/cve/2014/CVE-2014-8134.html http://rhn.redhat.com/errata/RHSA-2016-0855.html http://secunia.com/advisories/62336 http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html http://www.securityfocus.com/bid/71650 http://www.spinics.net/lists/kvm/msg111458.html https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1400314 https://bugzilla.novell.com/show_bug.cgi?id=909078 https://bugzilla.redhat.com/show_bug.cgi?id=1172765 https://support.f5.com/csp/article/K17120 https://support.f5.com/csp/article/K17120?utm_source=f5support&utm_medium=RSS

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

NONE

Base Score

NONE

Base Severity

3.3