Description
The em_syscall function in arch/x86/kvm/emulate.c in the KVM implementation in the Linux kernel before 3.2.14 does not properly handle the 0f05 (aka syscall) opcode, which allows guest OS users to cause a denial of service (guest OS crash) via a crafted application, as demonstrated by an NASM file.
Exploits (1)
References (6)
Core 6
Core References
Vendor Advisory x_refsource_confirm
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.14
Patch x_refsource_confirm
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c2226fc9e87ba3da060e47333657cd6616652b84
Exploit x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=773370
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00013.html
Exploit mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2012/01/12/2
Exploit, Patch x_refsource_confirm
https://github.com/torvalds/linux/commit/c2226fc9e87ba3da060e47333657cd6616652b84
Scores
EPSS
0.0079
EPSS Percentile
74.0%
Details
Status
published
Products (40)
linux/linux_kernel
3.0 rc1 (7 CPE variants)
linux/linux_kernel
3.0.1
linux/linux_kernel
3.0.2
linux/linux_kernel
3.0.3
linux/linux_kernel
3.0.4
linux/linux_kernel
3.0.5
linux/linux_kernel
3.0.6
linux/linux_kernel
3.0.7
linux/linux_kernel
3.0.8
linux/linux_kernel
3.0.9
... and 30 more
Published
Jul 03, 2012
Tracked Since
Feb 18, 2026