CVE-2012-3432

Public Exploit

Description

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.

Category

1.9
CVSS
Severity: Low
CVSS 2.0 •
EPSS 1.42% Top 25%
Vendor Advisory debian.org Vendor Advisory gentoo.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory xen.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.debian.org/security/2012/dsa-2531 vendor advisory
http://secunia.com/advisories/55082 third party advisory
http://lists.xen.org/archives/html/xen-devel/2012-07/msg01649.html mailing list exploit vendor advisory
http://security.gentoo.org/glsa/glsa-201309-24.xml vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00025.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00024.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00018.html vendor advisory
http://www.securityfocus.com/bid/54691 vdb entry
http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00017.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2012-3432?
CVE-2012-3432 has been scored as a low severity vulnerability.
How to fix CVE-2012-3432?
To fix CVE-2012-3432, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2012-3432 being actively exploited in the wild?
It is possible that CVE-2012-3432 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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