USN-5916-1: Linux kernel vulnerability

Published Mar 3, 2023
·
Updated

Jann Horn discovered that the Linux kernel did not properly track memory allocations for anonymous VMA mappings in some situations, leading to potential data structure reuse. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.

Affected Software

14 affected componentsFixes available
All of the following
ubuntu/linux-image-server<3.13.0.192.202
3.13.0.192.202
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-3.13.0-192-generic<3.13.0-192.243
3.13.0-192.243
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-virtual<3.13.0.192.202
3.13.0.192.202
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-generic-lts-trusty<3.13.0.192.202
3.13.0.192.202
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-3.13.0-192-lowlatency<3.13.0-192.243
3.13.0-192.243
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-generic<3.13.0.192.202
3.13.0.192.202
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-lowlatency<3.13.0.192.202
3.13.0.192.202
Ubuntu Ubuntu=14.04

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

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

    Fixed in 3.13.0.192.202
  2. Upgrade

    Upgrade ubuntu/linux-image-3.13.0-192-generic to a version that resolves this vulnerability.

    Fixed in 3.13.0-192.243
  3. Upgrade

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

    Fixed in 3.13.0.192.202
  4. Upgrade

    Upgrade ubuntu/linux-image-generic-lts-trusty to a version that resolves this vulnerability.

    Fixed in 3.13.0.192.202
  5. Upgrade

    Upgrade ubuntu/linux-image-3.13.0-192-lowlatency to a version that resolves this vulnerability.

    Fixed in 3.13.0-192.243
  6. Upgrade

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

    Fixed in 3.13.0.192.202
  7. Upgrade

    Upgrade ubuntu/linux-image-lowlatency to a version that resolves this vulnerability.

    Fixed in 3.13.0.192.202

Event History

Mar 3, 2023
Advisory Published
via Ubuntu·12:00 AM

Child vulnerabilities

Contains the following vulnerabilities.

Frequently Asked Questions

1

What is the vulnerability ID for this Linux kernel vulnerability?

The vulnerability ID for this Linux kernel vulnerability is USN-5916-1.

2

Who discovered this Linux kernel vulnerability?

Jann Horn discovered this Linux kernel vulnerability.

3

What is the impact of this Linux kernel vulnerability?

This Linux kernel vulnerability can be used by a local attacker to cause a denial of service (system crash) or possibly execute arbitrary code.

4

Which versions of Ubuntu are affected by this Linux kernel vulnerability?

Ubuntu 14.04 with the specific kernel versions mentioned in the vulnerability description are affected.

5

How can I fix this Linux kernel vulnerability?

Update the affected Ubuntu packages to the recommended versions listed in the vulnerability description.

Company

Resources

Contact

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