CVE-2012-0045 EXPLOIT
4.7
MEDIUM · CVSS 2.0 · EPSS 1% (pctl 62)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 4.7 (MEDIUM, v2.0) |
|---|---|
| Vector | AV:L/AC:M/Au:N/C:N/I:N/A:C |
| EPSS | 1.01% — more likely to be exploited than 62% of all CVEs |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2012-07-03 |
| Last modified | 2026-06-16 |
Affected (1)
| Vendor | Product |
|---|---|
| linux | linux kernel |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Linux Kernel 3.1.8 - KVM Local Denial of Service | 2011-12-29 |
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
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.14
- http://www.openwall.com/lists/oss-security/2012/01/12/2
- https://bugzilla.redhat.com/show_bug.cgi?id=773370
- https://github.com/torvalds/linux/commit/c2226fc9e87ba3da060e47333657cd6616652b84
- 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
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.14
- http://www.openwall.com/lists/oss-security/2012/01/12/2
- https://bugzilla.redhat.com/show_bug.cgi?id=773370
- https://github.com/torvalds/linux/commit/c2226fc9e87ba3da060e47333657cd6616652b84
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