Vulnerability Details : CVE-2012-1601
The KVM implementation in the Linux kernel before 3.3.6 allows host OS users to cause a denial of service (NULL pointer dereference and host OS crash) by making a KVM_CREATE_IRQCHIP ioctl call after a virtual CPU already exists.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2012-1601
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2012-1601
0.06%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 25 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2012-1601
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.9
|
MEDIUM | AV:L/AC:L/Au:N/C:N/I:N/A:C |
3.9
|
6.9
|
NIST |
CWE ids for CVE-2012-1601
-
Assigned by: nvd@nist.gov (Primary)
References for CVE-2012-1601
-
http://www.openwall.com/lists/oss-security/2012/03/30/1
oss-security - Re: CVE request -- kernel: kvm: irqchip_in_kernel() and vcpu->arch.apic inconsistency
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http://www.debian.org/security/2012/dsa-2469
Debian -- Security Information -- DSA-2469-1 linux-2.6
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https://github.com/torvalds/linux/commit/9c895160d25a76c21b65bad141b08e8d4f99afef
KVM: Ensure all vcpus are consistent with in-kernel irqchip settings · torvalds/linux@9c89516 · GitHub
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http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.6
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https://bugzilla.redhat.com/show_bug.cgi?id=808199
808199 – (CVE-2012-1601) CVE-2012-1601 kernel: kvm: irqchip_in_kernel() and vcpu->arch.apic inconsistency
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http://rhn.redhat.com/errata/RHSA-2012-0571.html
RHSA-2012:0571 - Security Advisory - Red Hat Customer Portal
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http://rhn.redhat.com/errata/RHSA-2012-0676.html
RHSA-2012:0676 - Security Advisory - Red Hat Customer Portal
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https://www.suse.com/support/update/announcement/2012/suse-su-20121679-1.html
SUSE-SU-2012:1679-1
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http://www.securitytracker.com/id?1026897
KVM Null Pointer Dereference in irqchip_in_kernel() Lets Local Users Deny Service - SecurityTracker
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http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html
[security-announce] openSUSE-SU-2013:0925-1: important: kernel: security
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