CVE-2012-0045

23Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendepss 1.0%

from disclosure to weapon0 days

Published on NVDJul 3

1st PoCDec 29

exploitation probability

1.0%top 40% of all CVEs

observed exploitation

nono source reports it

1 public exploit(s)

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 products

n/a · n/a

public PoCs found — 1✓ VexDay Proof

exploitdb✓ VexDay Proofwww.exploit-db.com/exploits/36545

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c2226fc9e87ba3da060e47333657cd6616652b84 http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00013.html https://bugzilla.redhat.com/show_bug.cgi?id=773370 https://github.com/torvalds/linux/commit/c2226fc9e87ba3da060e47333657cd6616652b84 http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.14 http://www.openwall.com/lists/oss-security/2012/01/12/2