USN-2415-1: Linux kernel vulnerability

Published Nov 25, 2014
·
Updated

Don Bailey discovered a flaw in the LZO decompress algorithm used by the Linux kernel. An attacker could exploit this flaw to cause a denial of service (memory corruption or OOPS). (CVE-2014-4608) Andy Lutomirski discovered that the Linux kernel was not checking the CAPSYSADMIN when remounting filesystems to read-only. A local user could exploit this flaw to cause a denial of service (loss of writability). (CVE-2014-7975)

Affected Software

28 affected componentsFixes available
All of the following
ubuntu/linux-image-2.6.32-68-386<2.6.32-68.135
2.6.32-68.135
Ubuntu Ubuntu=10.04
All of the following
ubuntu/linux-image-2.6.32-68-powerpc<2.6.32-68.135
2.6.32-68.135
Ubuntu Ubuntu=10.04
All of the following
ubuntu/linux-image-2.6.32-68-powerpc64-smp<2.6.32-68.135
2.6.32-68.135
Ubuntu Ubuntu=10.04
All of the following
ubuntu/linux-image-2.6.32-68-generic-pae<2.6.32-68.135
2.6.32-68.135
Ubuntu Ubuntu=10.04
All of the following
ubuntu/linux-image-2.6.32-68-versatile<2.6.32-68.135
2.6.32-68.135
Ubuntu Ubuntu=10.04
All of the following
ubuntu/linux-image-2.6.32-68-generic<2.6.32-68.135
2.6.32-68.135
Ubuntu Ubuntu=10.04
All of the following
ubuntu/linux-image-2.6.32-68-sparc64<2.6.32-68.135
2.6.32-68.135
Ubuntu Ubuntu=10.04
All of the following
ubuntu/linux-image-2.6.32-68-virtual<2.6.32-68.135
2.6.32-68.135
Ubuntu Ubuntu=10.04
All of the following
ubuntu/linux-image-2.6.32-68-server<2.6.32-68.135
2.6.32-68.135
Ubuntu Ubuntu=10.04
All of the following
ubuntu/linux-image-2.6.32-68-ia64<2.6.32-68.135
2.6.32-68.135
Ubuntu Ubuntu=10.04
All of the following
ubuntu/linux-image-2.6.32-68-sparc64-smp<2.6.32-68.135
2.6.32-68.135
Ubuntu Ubuntu=10.04
All of the following
ubuntu/linux-image-2.6.32-68-preempt<2.6.32-68.135
2.6.32-68.135
Ubuntu Ubuntu=10.04
All of the following
ubuntu/linux-image-2.6.32-68-powerpc-smp<2.6.32-68.135
2.6.32-68.135
Ubuntu Ubuntu=10.04
All of the following
ubuntu/linux-image-2.6.32-68-lpia<2.6.32-68.135
2.6.32-68.135
Ubuntu Ubuntu=10.04

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade ubuntu/linux-image-2.6.32-68-386 to a version that resolves this vulnerability.

    Fixed in 2.6.32-68.135
  2. Upgrade

    Upgrade ubuntu/linux-image-2.6.32-68-powerpc to a version that resolves this vulnerability.

    Fixed in 2.6.32-68.135
  3. Upgrade

    Upgrade ubuntu/linux-image-2.6.32-68-powerpc64-smp to a version that resolves this vulnerability.

    Fixed in 2.6.32-68.135
  4. Upgrade

    Upgrade ubuntu/linux-image-2.6.32-68-generic-pae to a version that resolves this vulnerability.

    Fixed in 2.6.32-68.135
  5. Upgrade

    Upgrade ubuntu/linux-image-2.6.32-68-versatile to a version that resolves this vulnerability.

    Fixed in 2.6.32-68.135
  6. Upgrade

    Upgrade ubuntu/linux-image-2.6.32-68-generic to a version that resolves this vulnerability.

    Fixed in 2.6.32-68.135
  7. Upgrade

    Upgrade ubuntu/linux-image-2.6.32-68-sparc64 to a version that resolves this vulnerability.

    Fixed in 2.6.32-68.135
  8. Upgrade

    Upgrade ubuntu/linux-image-2.6.32-68-virtual to a version that resolves this vulnerability.

    Fixed in 2.6.32-68.135
  9. Upgrade

    Upgrade ubuntu/linux-image-2.6.32-68-server to a version that resolves this vulnerability.

    Fixed in 2.6.32-68.135
  10. Upgrade

    Upgrade ubuntu/linux-image-2.6.32-68-ia64 to a version that resolves this vulnerability.

    Fixed in 2.6.32-68.135
  11. Upgrade

    Upgrade ubuntu/linux-image-2.6.32-68-sparc64-smp to a version that resolves this vulnerability.

    Fixed in 2.6.32-68.135
  12. Upgrade

    Upgrade ubuntu/linux-image-2.6.32-68-preempt to a version that resolves this vulnerability.

    Fixed in 2.6.32-68.135
  13. Upgrade

    Upgrade ubuntu/linux-image-2.6.32-68-powerpc-smp to a version that resolves this vulnerability.

    Fixed in 2.6.32-68.135
  14. Upgrade

    Upgrade ubuntu/linux-image-2.6.32-68-lpia to a version that resolves this vulnerability.

    Fixed in 2.6.32-68.135

Event History

Nov 25, 2014
Advisory Published
via Ubuntu·12:00 AM

Child vulnerabilities

Contains the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of USN-2415-1?

USN-2415-1 is classified as a denial of service vulnerability that can lead to memory corruption or system crashes.

2

How do I fix USN-2415-1?

To fix USN-2415-1, update to the linux-image package version 2.6.32-68.135 or newer.

3

What systems are affected by USN-2415-1?

USN-2415-1 affects Ubuntu 10.04 systems running specific versions of the linux-image package.

4

What is the cause of the USN-2415-1 vulnerability?

The USN-2415-1 vulnerability is caused by flaws in the LZO decompress algorithm used in the Linux kernel.

5

Can USN-2415-1 lead to remote code execution?

No, USN-2415-1 primarily leads to denial of service but does not allow for remote code execution.

Company

Resources

Contact

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