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Ubuntu 14.04 LTS: USN-7506-2 critical: aws kernel memory access

ubuntu
Calendar Grey May 12, 2025
Dist Ubuntu Esm H88
Uncover essential updates for the Linux kernel in Ubuntu 14.04 LTS to address hardware malfunctions and memory retrieval problems.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-aws: Linux kernel for Amazon Web Services (AWS) systems

Details:

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:

- Hardware crypto device drivers;

- GPU drivers;

- IIO subsystem;

- Media drivers;

- Network drivers;

- SCSI subsystem;

- SPI subsystem;

- USB Gadget drivers;

- Ceph distributed file system;

- File systems infrastructure;

- JFS file system;

- Network file system (NFS) client;

- Network file system (NFS) serv...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service memory access ubuntu aws kernel device access rights

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 14.04 LTS
  linux-image-4.4.0-1143-aws      4.4.0-1143.149
                                  Available with Ubuntu Pro
  linux-image-aws                 4.4.0.1143.140
                                  Available with Ubuntu Pro

After a standard system update you need to reboot your computer to make
all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References

https://ubuntu.com/security/notices/USN-7506-2

https://ubuntu.com/security/notices/USN-7506-1

CVE-2021-46959, CVE-2021-47150, CVE-2021-47163, CVE-2021-47191,

CVE-2021-47219, CVE-2021-47245, CVE-2021-47500, CVE-2021-47506,

CVE-2021-47587, CVE-2022-23041, CVE-2023-52741, CVE-2024-26689,

CVE-2024-26915, CVE-2024-26974, CVE-2024-26996, CVE-2024-35864,

CVE-2024-36934, CVE-2024-46771, CVE-2024-46780, CVE-2024-49944,

CVE-2024-50237, CVE-2024-50256, CVE-2024-53063, CVE-2024-53066,

CVE-2024-53140, CVE-2024-53173, CVE-2024-56598, CVE-2024-56631,

CVE-2024-56642, CVE-2024-56650, CVE-2024-56770, CVE-2025-21971

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7506-2

Topics%20covered

Topics Covered

security advisory denial of service memory access ubuntu aws kernel device access rights

Package Information

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