USN-7428-2: Linux kernel (FIPS) vulnerabilities

Published Apr 9, 2025
·
Updated

Demi Marie Obenour and Simon Gaiser discovered that several Xen para- virtualization device frontends did not properly restrict the access rights of device backends. An attacker could possibly use a malicious Xen backend to gain access to memory pages of a guest VM or cause a denial of service in the guest. (CVE-2022-23041)

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: - HID subsystem; - Network drivers; - Mellanox network drivers; - SCSI subsystem; - SuperH / SH-Mobile drivers; - File systems infrastructure; - Ext4 file system; - JFS file system; - IP tunnels definitions; - Network namespace; - BPF subsystem; - Networking core; - HSR network protocol; - IPv4 networking; - IPv6 networking; - Network traffic control; (CVE-2024-56615, CVE-2024-56600, CVE-2025-21700, CVE-2024-56658, CVE-2024-35960, CVE-2024-50265, CVE-2025-21702, CVE-2024-53227, CVE-2024-53165, CVE-2024-50167, CVE-2024-26863, CVE-2024-35973, CVE-2024-46826, CVE-2021-47119, CVE-2024-50302, CVE-2024-49952, CVE-2021-47101, CVE-2024-49948, CVE-2024-56595)

Affected Software

21 affected componentsFixes available
Canonical Linux kernel (FIPS)
All of the following
ubuntu/linux-image-4.15.0-1134-fips<FIPS-140
FIPS-140
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-4.15.0-2080-gcp-fips<FIPS-140
FIPS-140
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-4.15.0-2096-azure-fips<FIPS-140
FIPS-140
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-4.15.0-2117-aws-fips<FIPS-140
FIPS-140
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-aws-fips<FIPS-140
FIPS-140
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-azure-fips<FIPS-140
FIPS-140
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-fips<FIPS-140
FIPS-140
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-gcp-fips<FIPS-140
FIPS-140
Ubuntu Ubuntu=18.04
ubuntu/linux-aws-fips<4.15.0-2117.123
4.15.0-2117.123
ubuntu/linux-azure-fips<4.15.0-2096.102
4.15.0-2096.102
ubuntu/linux-fips<4.15.0-1134.145
4.15.0-1134.145
ubuntu/linux-gcp-fips<4.15.0-2080.86
4.15.0-2080.86

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade ubuntu/linux-image-4.15.0-1134-fips to a version that resolves this vulnerability.

    Fixed in FIPS-140
  2. Upgrade

    Upgrade ubuntu/linux-image-4.15.0-2080-gcp-fips to a version that resolves this vulnerability.

    Fixed in FIPS-140
  3. Upgrade

    Upgrade ubuntu/linux-image-4.15.0-2096-azure-fips to a version that resolves this vulnerability.

    Fixed in FIPS-140
  4. Upgrade

    Upgrade ubuntu/linux-image-4.15.0-2117-aws-fips to a version that resolves this vulnerability.

    Fixed in FIPS-140
  5. Upgrade

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

    Fixed in FIPS-140
  6. Upgrade

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

    Fixed in FIPS-140
  7. Upgrade

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

    Fixed in FIPS-140
  8. Upgrade

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

    Fixed in FIPS-140
  9. Upgrade

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

    Fixed in 4.15.0-2117.123
  10. Upgrade

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

    Fixed in 4.15.0-2096.102
  11. Upgrade

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

    Fixed in 4.15.0-1134.145
  12. Upgrade

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

    Fixed in 4.15.0-2080.86

Event History

Apr 9, 2025
Advisory Published
via Ubuntu·12:00 AM
Data Sourced
via Ubuntu·12:00 AM
DescriptionAffected Software
Advisory Published
via OSV·06:02 PM
Data Sourced
via OSV·06:02 PM
DescriptionAffected Software

Child vulnerabilities

Contains the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of USN-7428-2?

USN-7428-2 is classified as a high severity vulnerability due to its potential for unauthorized access to memory pages of guest VMs.

2

How do I fix USN-7428-2?

To mitigate USN-7428-2, you should update to the recommended kernel version 4.15.0-1134.145 or higher on affected Ubuntu 18.04 systems.

3

What specific systems are affected by USN-7428-2?

USN-7428-2 affects various Ubuntu 18.04 systems running certain Xen para-virtualization device frontends.

4

What are the possible impacts of USN-7428-2?

An attacker exploiting USN-7428-2 could gain access to sensitive memory of a guest VM or cause a denial of service.

5

Who discovered USN-7428-2?

USN-7428-2 was discovered by security researchers Demi Marie Obenour and Simon Gaiser.

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