USN-1557-1: Linux kernel vulnerability

Published Sep 7, 2012
·
Updated

Some errors where discovered in the Linux kernel's UDF file system, which is used to mount some CD-ROMs and DVDs. An unprivileged local user could use these flaws to crash the system.

Affected Software

18 affected componentsFixes available
All of the following
ubuntu/linux-image-2.6.38-15-powerpc<2.6.38-15.66
2.6.38-15.66
Ubuntu Ubuntu=11.04
All of the following
ubuntu/linux-image-2.6.38-15-omap<2.6.38-15.66
2.6.38-15.66
Ubuntu Ubuntu=11.04
All of the following
ubuntu/linux-image-2.6.38-15-generic-pae<2.6.38-15.66
2.6.38-15.66
Ubuntu Ubuntu=11.04
All of the following
ubuntu/linux-image-2.6.38-15-server<2.6.38-15.66
2.6.38-15.66
Ubuntu Ubuntu=11.04
All of the following
ubuntu/linux-image-2.6.38-15-powerpc64-smp<2.6.38-15.66
2.6.38-15.66
Ubuntu Ubuntu=11.04
All of the following
ubuntu/linux-image-2.6.38-15-virtual<2.6.38-15.66
2.6.38-15.66
Ubuntu Ubuntu=11.04
All of the following
ubuntu/linux-image-2.6.38-15-versatile<2.6.38-15.66
2.6.38-15.66
Ubuntu Ubuntu=11.04
All of the following
ubuntu/linux-image-2.6.38-15-generic<2.6.38-15.66
2.6.38-15.66
Ubuntu Ubuntu=11.04
All of the following
ubuntu/linux-image-2.6.38-15-powerpc-smp<2.6.38-15.66
2.6.38-15.66
Ubuntu Ubuntu=11.04

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade ubuntu/linux-image-2.6.38-15-powerpc to a version that resolves this vulnerability.

    Fixed in 2.6.38-15.66
  2. Upgrade

    Upgrade ubuntu/linux-image-2.6.38-15-omap to a version that resolves this vulnerability.

    Fixed in 2.6.38-15.66
  3. Upgrade

    Upgrade ubuntu/linux-image-2.6.38-15-generic-pae to a version that resolves this vulnerability.

    Fixed in 2.6.38-15.66
  4. Upgrade

    Upgrade ubuntu/linux-image-2.6.38-15-server to a version that resolves this vulnerability.

    Fixed in 2.6.38-15.66
  5. Upgrade

    Upgrade ubuntu/linux-image-2.6.38-15-powerpc64-smp to a version that resolves this vulnerability.

    Fixed in 2.6.38-15.66
  6. Upgrade

    Upgrade ubuntu/linux-image-2.6.38-15-virtual to a version that resolves this vulnerability.

    Fixed in 2.6.38-15.66
  7. Upgrade

    Upgrade ubuntu/linux-image-2.6.38-15-versatile to a version that resolves this vulnerability.

    Fixed in 2.6.38-15.66
  8. Upgrade

    Upgrade ubuntu/linux-image-2.6.38-15-generic to a version that resolves this vulnerability.

    Fixed in 2.6.38-15.66
  9. Upgrade

    Upgrade ubuntu/linux-image-2.6.38-15-powerpc-smp to a version that resolves this vulnerability.

    Fixed in 2.6.38-15.66

Event History

Sep 7, 2012
Advisory Published
via Ubuntu·12:00 AM

Child vulnerabilities

Contains the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of USN-1557-1?

USN-1557-1 has a high severity level as it allows unprivileged local users to potentially crash the system.

2

How do I fix USN-1557-1?

To fix USN-1557-1, upgrade to the Linux kernel version 2.6.38-15.66 or newer.

3

Which systems are affected by USN-1557-1?

USN-1557-1 affects Ubuntu 11.04 systems running specific versions of the Linux kernel.

4

Can USN-1557-1 lead to unauthorized access?

While USN-1557-1 does not directly allow unauthorized access, it can create a denial of service scenario.

5

What types of filesystems are impacted by USN-1557-1?

USN-1557-1 impacts the UDF file system used for mounting certain CD-ROMs and DVDs in Linux.

Company

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