USN-7148-1: Linux kernel vulnerabilities

Published Dec 10, 2024
·
Updated

Lyu Tao discovered that the NFS implementation in the Linux kernel did not properly handle requests to open a directory on a regular file. A local attacker could use this to expose sensitive information (kernel memory).

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - x86 architecture; - ATM drivers; - Device frequency scaling framework; - GPU drivers; - Hardware monitoring drivers; - VMware VMCI Driver; - MTD block device drivers; - Network drivers; - Device tree and open firmware driver; - SCSI subsystem; - USB Serial drivers; - BTRFS file system; - File systems infrastructure; - F2FS file system; - JFS file system; - NILFS2 file system; - Netfilter; - Memory management; - Ethernet bridge; - IPv6 networking; - Logical Link layer; - MAC80211 subsystem; - NFC subsystem; - Network traffic control; (CVE-2021-47055, CVE-2024-26675, CVE-2024-42244, CVE-2024-46743, CVE-2024-41095, CVE-2024-46756, CVE-2024-46723, CVE-2024-46759, CVE-2024-35877, CVE-2024-38538, CVE-2024-26668, CVE-2024-44998, CVE-2024-42309, CVE-2024-46758, CVE-2024-46800, CVE-2022-48733, CVE-2023-52531, CVE-2023-52599, CVE-2024-46722, CVE-2024-42240, CVE-2024-44987, CVE-2023-52502, CVE-2023-52578, CVE-2024-41059, CVE-2024-41071, CVE-2024-44942, CVE-2024-46738, CVE-2022-48943, CVE-2023-52614, CVE-2024-27397, CVE-2024-38560, CVE-2024-43882, CVE-2024-42104, CVE-2024-46757, CVE-2024-26636, CVE-2024-26633, CVE-2024-41089, CVE-2024-42310, CVE-2022-48938)

Affected Software

44 affected componentsFixes available
Ubuntu Linux kernel
All of the following
ubuntu/linux-image-4.4.0-1139-kvm<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=16.04
All of the following
ubuntu/linux-image-4.4.0-1176-aws<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=16.04
All of the following
ubuntu/linux-image-4.4.0-261-generic<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=16.04
All of the following
ubuntu/linux-image-4.4.0-261-lowlatency<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=16.04
All of the following
ubuntu/linux-image-aws<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=16.04
All of the following
ubuntu/linux-image-generic<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=16.04
All of the following
ubuntu/linux-image-generic-lts-xenial<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=16.04
All of the following
ubuntu/linux-image-kvm<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=16.04
All of the following
ubuntu/linux-image-lowlatency<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=16.04
All of the following
ubuntu/linux-image-lowlatency-lts-xenial<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=16.04
All of the following
ubuntu/linux-image-virtual<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=16.04
All of the following
ubuntu/linux-image-virtual-lts-xenial<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=16.04
All of the following
ubuntu/linux-image-4.4.0-1138-aws<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-4.4.0-261-generic<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-4.4.0-261-lowlatency<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-aws<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-generic-lts-xenial<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-lowlatency-lts-xenial<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-virtual-lts-xenial<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=14.04
ubuntu/linux-aws<4.4.0-1138.144
4.4.0-1138.144
ubuntu/linux-lts-xenial<4.4.0-261.295~14.04.1
4.4.0-261.295~14.04.1
ubuntu/linux<4.4.0-261.295
4.4.0-261.295
ubuntu/linux-aws<4.4.0-1176.191
4.4.0-1176.191
ubuntu/linux-kvm<4.4.0-1139.149
4.4.0-1139.149

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade ubuntu/linux-image-4.4.0-1139-kvm to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  2. Upgrade

    Upgrade ubuntu/linux-image-4.4.0-1176-aws to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  3. Upgrade

    Upgrade ubuntu/linux-image-4.4.0-261-generic to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  4. Upgrade

    Upgrade ubuntu/linux-image-4.4.0-261-lowlatency to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  5. Upgrade

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

    Fixed in Ubuntu Pro
  6. Upgrade

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

    Fixed in Ubuntu Pro
  7. Upgrade

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

    Fixed in Ubuntu Pro
  8. Upgrade

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

    Fixed in Ubuntu Pro
  9. Upgrade

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

    Fixed in Ubuntu Pro
  10. Upgrade

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

    Fixed in Ubuntu Pro
  11. Upgrade

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

    Fixed in Ubuntu Pro
  12. Upgrade

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

    Fixed in Ubuntu Pro
  13. Upgrade

    Upgrade ubuntu/linux-image-4.4.0-1138-aws to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  14. Upgrade

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

    Fixed in 4.4.0-1138.144
  15. Upgrade

    Upgrade ubuntu/linux-lts-xenial to a version that resolves this vulnerability.

    Fixed in 4.4.0-261.295~14.04.1
  16. Upgrade

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

    Fixed in 4.4.0-261.295
  17. Upgrade

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

    Fixed in 4.4.0-1176.191
  18. Upgrade

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

    Fixed in 4.4.0-1139.149
  19. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch USN-7148-1

Event History

Dec 10, 2024
Advisory Published
via Ubuntu·12:00 AM
Data Sourced
via Ubuntu·12:00 AM
DescriptionAffected Software
Advisory Published
via OSV·07:52 PM
Data Sourced
via OSV·07:52 PM
DescriptionAffected Software

Child vulnerabilities

Contains the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of USN-7148-1?

The severity of USN-7148-1 is considered high due to the potential for local attackers to expose sensitive kernel memory information.

2

How do I fix USN-7148-1?

To fix USN-7148-1, update the Linux kernel to the specific versions noted in the advisory for your Ubuntu version.

3

What versions of Ubuntu are affected by USN-7148-1?

USN-7148-1 affects Ubuntu 16.04 and 14.04 versions that utilize specific vulnerable kernel packages.

4

What type of vulnerability is described in USN-7148-1?

USN-7148-1 describes a vulnerability in the NFS implementation in the Linux kernel allowing local attackers to access kernel memory.

5

Who discovered the vulnerability in USN-7148-1?

The vulnerability in USN-7148-1 was discovered by researcher Lyu Tao.

Company

Resources

Contact

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