CVE-2014-8481
Linux Kernel < 3.18 - Denial of Service via Invalid KVM Instruction Handling
Title source: llmDescription
The instruction decoder in arch/x86/kvm/emulate.c in the KVM subsystem in the Linux kernel before 3.18-rc2 does not properly handle invalid instructions, which allows guest OS users to cause a denial of service (NULL pointer dereference and host OS crash) via a crafted application that triggers (1) an improperly fetched instruction or (2) an instruction that occupies too many bytes. NOTE: this vulnerability exists because of an incomplete fix for CVE-2014-8480.
References (6)
Core 6
Core References
Issue Tracking x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=1156615
Exploit x_refsource_confirm
https://github.com/torvalds/linux/commit/a430c9166312e1aa3d80bce32374233bdbfeba32
Patch x_refsource_confirm
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a430c9166312e1aa3d80bce32374233bdbfeba32
Third Party Advisory third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/62042
Exploit mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2014/10/23/7
Various Sources mailing-list
x_refsource_mlist
http://thread.gmane.org/gmane.comp.emulators.kvm.devel/128427
Scores
EPSS
0.0058
EPSS Percentile
44.4%
Details
CWE
CWE-399
Status
published
Products (1)
linux/linux_kernel
< 3.18
Published
Nov 10, 2014
Tracked Since
Feb 18, 2026