Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| n/a / n/a | affected n/a |
CWE
No CWE identifiers supplied.
References
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.14
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c2226fc9e87ba3da060e47333657cd6616652b84
- https://bugzilla.redhat.com/show_bug.cgi?id=773370
- http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00013.html
- http://www.openwall.com/lists/oss-security/2012/01/12/2
- https://github.com/torvalds/linux/commit/c2226fc9e87ba3da060e47333657cd6616652b84
ADP enrichment
No English description supplied.
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.14
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c2226fc9e87ba3da060e47333657cd6616652b84
- https://bugzilla.redhat.com/show_bug.cgi?id=773370
- http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00013.html
- http://www.openwall.com/lists/oss-security/2012/01/12/2
- https://github.com/torvalds/linux/commit/c2226fc9e87ba3da060e47333657cd6616652b84