Improper Input Validation Affecting qemu-kvm package, versions <2:0.12.1.2-2.160.el6_1.2


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.43% (75th percentile)

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  • Snyk IDSNYK-RHEL6-QEMUKVM-1429007
  • published26 Jul 2021
  • disclosed8 May 2011

Introduced: 8 May 2011

CVE-2011-2512  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade RHEL:6 qemu-kvm to version 2:0.12.1.2-2.160.el6_1.2 or higher.
This issue was patched in RHSA-2011:0919.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu-kvm package and not the qemu-kvm package as distributed by RHEL. See How to fix? for RHEL:6 relevant fixed versions and status.

The virtio_queue_notify in qemu-kvm 0.14.0 and earlier does not properly validate the virtqueue number, which allows guest users to cause a denial of service (guest crash) and possibly execute arbitrary code via a negative number in the Queue Notify field of the Virtio Header, which bypasses a signed comparison.

CVSS Scores

version 3.1