{"api_version":"1","generated_at":"2026-07-23T05:35:42+00:00","cve":"CVE-2012-0045","urls":{"html":"https://cve.report/CVE-2012-0045","api":"https://cve.report/api/cve/CVE-2012-0045.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2012-0045","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2012-0045"},"summary":{"title":"CVE-2012-0045","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.","state":"PUBLISHED","assigner":"redhat","published_at":"2012-07-03 16:40:31","updated_at":"2026-04-29 01:13:23"},"problem_types":["NVD-CWE-Other","n/a"],"metrics":[{"version":"2.0","source":"nvd@nist.gov","type":"Primary","score":"4.7","severity":"","vector":"AV:L/AC:M/Au:N/C:N/I:N/A:C","data":{"version":"2.0","vectorString":"AV:L/AC:M/Au:N/C:N/I:N/A:C","baseScore":4.7,"accessVector":"LOCAL","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"COMPLETE"}}],"references":[{"url":"http://www.openwall.com/lists/oss-security/2012/01/12/2","name":"http://www.openwall.com/lists/oss-security/2012/01/12/2","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit"],"title":"oss-security - Re: CVE request -- kernel: kvm: syscall instruction\n induced guest panic","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c2226fc9e87ba3da060e47333657cd6616652b84","name":"http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c2226fc9e87ba3da060e47333657cd6616652b84","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"kernel/git/torvalds/linux.git - Linux kernel source tree","mime":"text/html","httpstatus":"404","archivestatus":"200"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00013.html","name":"http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00013.html","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"[security-announce] SUSE-SU-2012:0616-1: important: Security update for","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=773370","name":"https://bugzilla.redhat.com/show_bug.cgi?id=773370","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit"],"title":"773370 – (CVE-2012-0045) CVE-2012-0045 kernel: kvm: syscall instruction induced guest panic","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.14","name":"http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.14","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"","mime":"text/plain","httpstatus":"200","archivestatus":"200"},{"url":"https://github.com/torvalds/linux/commit/c2226fc9e87ba3da060e47333657cd6616652b84","name":"https://github.com/torvalds/linux/commit/c2226fc9e87ba3da060e47333657cd6616652b84","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Patch"],"title":"KVM: x86: fix missing checks in syscall emulation · torvalds/linux@c2226fc · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c2226fc9e87ba3da060e47333657cd6616652b84","name":"CONFIRM:http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c2226fc9e87ba3da060e47333657cd6616652b84","refsource":"MITRE","tags":[],"title":"kernel/git/torvalds/linux.git - Linux kernel source tree","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2012-0045","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2012-0045","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"n/a","product":"n/a","version":"affected 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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.","Type":"Description","Title":"CVE-2012-0045"},{"CveYear":"2012","CveId":"45","Ordinal":"2","NoteData":"2012-07-03","Type":"Other","Title":"Published"},{"CveYear":"2012","CveId":"45","Ordinal":"3","NoteData":"2017-12-28","Type":"Other","Title":"Modified"}]}}}