SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

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…

LOW 1.9EPSS 0.64%

Does this matter?

Lower severity and a low EPSS score (0.64%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 2.0
1.9 LOWAV:L/AC:M/Au:N/C:N/I:N/A:P
EPSS
0.64% probability · 49th percentile
CISA KEV
Not listed
Weakness
CWE-264
Affected
xen/xen
Source
secalert@redhat.com

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.