Vulnerability Details : CVE-2012-3432
The handle_mmio function in arch/x86/hvm/io.c in the MMIO operations emulator for Xen 3.3 and 4.x, when running an HVM guest, does not properly reset certain state information between emulation cycles, which allows local guest OS users to cause a denial of service (guest OS crash) via unspecified operations on MMIO regions.
Vulnerability category: Denial of service
Products affected by CVE-2012-3432
- cpe:2.3:o:xen:xen:3.3.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.0.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.0.4:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.1.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.0.2:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.0.3:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.1.1:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.0.1:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.2.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.1.2:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.1.3:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2012-3432
0.12%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 45 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2012-3432
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
1.9
|
LOW | AV:L/AC:M/Au:N/C:N/I:N/A:P |
3.4
|
2.9
|
NIST |
CWE ids for CVE-2012-3432
-
Assigned by: nvd@nist.gov (Primary)
References for CVE-2012-3432
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http://lists.xen.org/archives/html/xen-devel/2012-07/msg01649.html
Xen project Mailing ListExploit;Vendor Advisory
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http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00025.html
[security-announce] SUSE-SU-2012:1044-1: important: Security update for
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http://security.gentoo.org/glsa/glsa-201309-24.xml
Xen: Multiple vulnerabilities (GLSA 201309-24) — Gentoo security
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http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00024.html
[security-announce] SUSE-SU-2012:1043-1: important: Security update for
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http://www.debian.org/security/2012/dsa-2531
Debian -- Security Information -- DSA-2531-1 xen
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http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00018.html
[security-announce] openSUSE-SU-2012:1174-1: important: Security Update
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http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00017.html
[security-announce] openSUSE-SU-2012:1172-1: important: Security Update
-
http://www.securityfocus.com/bid/54691
Xen HVM Guest User Mode MMIO Emulation Local Denial of Service Vulnerability
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