CVE-2011-4622 Affecting kernel package, versions <0:2.6.35.14-107.1.39.amzn1


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-AMZN201803-KERNEL-1663979
  • published27 Sept 2021
  • disclosed27 Jan 2012

Introduced: 27 Jan 2012

CVE-2011-4622  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 kernel to version 0:2.6.35.14-107.1.39.amzn1 or higher.
This issue was patched in ALAS-2012-55.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel package and not the kernel package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.

The create_pit_timer function in arch/x86/kvm/i8254.c in KVM 83, and possibly other versions, does not properly handle when Programmable Interval Timer (PIT) interrupt requests (IRQs) when a virtual interrupt controller (irqchip) is not available, which allows local users to cause a denial of service (NULL pointer dereference) by starting a timer.

CVSS Scores

version 3.1