CVE-2014-8134

low-risk
Published 2014-12-12

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.

Do I need to act?

-
0.08% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.3/10 Low
LOCAL / LOW complexity

Affected Products (8)

Affected Vendors

Linux Opensuse Oracle Canonical Suse

References (30)

Mailing List http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00009.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html
Patch http://people.canonical.com/~ubuntu-security/cve/2014/CVE-2014-8134.html
Third Party Advisory http://rhn.redhat.com/errata/RHSA-2016-0855.html
Broken Link http://secunia.com/advisories/62336
Third Party Advisory http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.h...
Third Party Advisory http://www.securityfocus.com/bid/71650
Exploit http://www.spinics.net/lists/kvm/msg111458.html
Vendor Advisory https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1400314
Permissions Required https://bugzilla.novell.com/show_bug.cgi?id=909078
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1172765
Third Party Advisory https://support.f5.com/csp/article/K17120
https://support.f5.com/csp/article/K17120?utm_source=f5support&amp%3Butm_medium=...
Mailing List http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00009.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html
Patch http://people.canonical.com/~ubuntu-security/cve/2014/CVE-2014-8134.html
and 10 more references
27
/ 100
low-risk
Severity 13/34 · Low
Exploitability 0/34 · Minimal
Exposure 14/34 · Moderate