Advisory Published

USN-1389-1: Linux kernel vulnerabilities

First published: Tue Mar 06 2012(Updated: )

Paolo Bonzini discovered a flaw in Linux's handling of the SG_IO ioctl command. A local user, or user in a VM could exploit this flaw to bypass restrictions and gain read/write access to all data on the affected block device. (CVE-2011-4127) A flaw was found in KVM's Programmable Interval Timer (PIT). When a virtual interrupt control is not available a local user could use this to cause a denial of service by starting a timer. (CVE-2011-4622) A flaw was discovered in the XFS filesystem. If a local user mounts a specially crafted XFS image it could potential execute arbitrary code on the system. (CVE-2012-0038) A flaw was found in the Linux kernel's ext4 file system when mounting a corrupt filesystem. A user-assisted remote attacker could exploit this flaw to cause a denial of service. (CVE-2012-2100)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-2.6.32-39-lpia<2.6.32-39.86
2.6.32-39.86
Ubuntu 22.04 LTS=10.04
All of
ubuntu/linux-image-2.6.32-39-generic-pae<2.6.32-39.86
2.6.32-39.86
Ubuntu 22.04 LTS=10.04
All of
ubuntu/linux-image-2.6.32-39-sparc64<2.6.32-39.86
2.6.32-39.86
Ubuntu 22.04 LTS=10.04
All of
ubuntu/linux-image-2.6.32-39-ia64<2.6.32-39.86
2.6.32-39.86
Ubuntu 22.04 LTS=10.04
All of
ubuntu/linux-image-2.6.32-39-386<2.6.32-39.86
2.6.32-39.86
Ubuntu 22.04 LTS=10.04
All of
ubuntu/linux-image-2.6.32-39-powerpc<2.6.32-39.86
2.6.32-39.86
Ubuntu 22.04 LTS=10.04
All of
ubuntu/linux-image-2.6.32-39-versatile<2.6.32-39.86
2.6.32-39.86
Ubuntu 22.04 LTS=10.04
All of
ubuntu/linux-image-2.6.32-39-generic<2.6.32-39.86
2.6.32-39.86
Ubuntu 22.04 LTS=10.04
All of
ubuntu/linux-image-2.6.32-39-powerpc64-smp<2.6.32-39.86
2.6.32-39.86
Ubuntu 22.04 LTS=10.04
All of
ubuntu/linux-image-2.6.32-39-preempt<2.6.32-39.86
2.6.32-39.86
Ubuntu 22.04 LTS=10.04
All of
ubuntu/linux-image-2.6.32-39-powerpc-smp<2.6.32-39.86
2.6.32-39.86
Ubuntu 22.04 LTS=10.04
All of
ubuntu/linux-image-2.6.32-39-server<2.6.32-39.86
2.6.32-39.86
Ubuntu 22.04 LTS=10.04
All of
ubuntu/linux-image-2.6.32-39-sparc64-smp<2.6.32-39.86
2.6.32-39.86
Ubuntu 22.04 LTS=10.04
All of
ubuntu/linux-image-2.6.32-39-virtual<2.6.32-39.86
2.6.32-39.86
Ubuntu 22.04 LTS=10.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of USN-1389-1?

    USN-1389-1 is considered a critical vulnerability due to its potential to allow unauthorized access to sensitive data.

  • How do I fix USN-1389-1?

    To fix USN-1389-1, upgrade the affected Linux kernel packages to version 2.6.32-39.86 or later.

  • Who is affected by USN-1389-1?

    USN-1389-1 affects local users and users in virtual machines running specific versions of Ubuntu 10.04.

  • What types of systems are impacted by USN-1389-1?

    USN-1389-1 impacts various Ubuntu 10.04 systems with Linux kernel versions prior to 2.6.32-39.86.

  • What is the CVE associated with USN-1389-1?

    USN-1389-1 corresponds to CVE-2011-4127, which describes the vulnerability found in Linux's handling of the SG_IO ioctl command.

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