CVEvulnerability

CVE-2012-0045

4.7 MEDIUM Published 2012-07-03 Modified 2026-06-16 Official page ↗

Status: Modified
Published: 2012-07-03
Last modified: 2026-06-16
Assigner: [email protected]
CVSS 2.0 ([email protected]): 4.7 MEDIUM — AV:L/AC:M/Au:N/C:N/I:N/A:C

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.

Affected configurations

• linux linux kernel (<= 3.2.13) • linux linux kernel 3.0 • 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 • linux linux kernel 3.0.10 • linux linux kernel 3.0.11 • linux linux kernel 3.0.12 • linux linux kernel 3.0.13 • linux linux kernel 3.0.14 • linux linux kernel 3.0.15 • linux linux kernel 3.0.16 • linux linux kernel 3.0.17 • linux linux kernel 3.0.18 • linux linux kernel 3.0.19 • linux linux kernel 3.0.20 • linux linux kernel 3.0.21 • linux linux kernel 3.0.22 • linux linux kernel 3.0.23 • linux linux kernel 3.0.24 • linux linux kernel 3.0.25 • linux linux kernel 3.0.26 • linux linux kernel 3.0.27 • linux linux kernel 3.0.28 • linux linux kernel 3.0.29 • linux linux kernel 3.0.30 • linux linux kernel 3.0.31 • linux linux kernel 3.0.32 • linux linux kernel 3.0.33 • linux linux kernel 3.0.34 • linux linux kernel 3.1 • linux linux kernel 3.1.1 • linux linux kernel 3.1.2 • linux linux kernel 3.1.3 • linux linux kernel 3.1.4 • linux linux kernel 3.1.5 • linux linux kernel 3.1.6 • linux linux kernel 3.1.7 • linux linux kernel 3.1.8 • linux linux kernel 3.1.9 • linux linux kernel 3.1.10 • linux linux kernel 3.2 • linux linux kernel 3.2.1 • linux linux kernel 3.2.2 • linux linux kernel 3.2.3 • linux linux kernel 3.2.4 • linux linux kernel 3.2.5 • linux linux kernel 3.2.6 • linux linux kernel 3.2.7 • linux linux kernel 3.2.8 • linux linux kernel 3.2.9 • linux linux kernel 3.2.10 • linux linux kernel 3.2.11 • linux linux kernel 3.2.12

References

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