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Ubuntu 18.04 LTS USN-7296-1 Critical Heap Overflow DoS Advisory

ubuntu
Calendar Grey February 25, 2025
Dist Ubuntu Esm H88
Debian Security Advisory DSA-5078-1 warns of a buffer overflow in the Linux kernel, leading to system instability and risk of unauthorized code execution.
The system could be made to crash or run programs as an administrator.

Summary

The system could be made to crash or run programs as an administrator.

Software Description:

- linux: Linux kernel

- linux-hwe: Linux hardware enablement (HWE) kernel

Details:

Attila Szász discovered that the HFS+ file system implementation in the

Linux Kernel contained a heap overflow vulnerability. An attacker could use

a specially crafted file system image that, when mounted, could cause a

denial of service (system crash) or possibly execute arbitrary code.

Topics%20covered

Topics Covered

security advisory denial of service kernel update Ubuntu heap overflow doS system update system crash Linux kernel HFS+ HFS+ overflow

Update Instructions

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

Ubuntu 18.04 LTS
  linux-image-4.15.0-234-generic  4.15.0-234.246
                                  Available with Ubuntu Pro
  linux-image-4.15.0-234-lowlatency  4.15.0-234.246
                                  Available with Ubuntu Pro
  linux-image-generic             4.15.0.234.218
                                  Available with Ubuntu Pro
  linux-image-lowlatency          4.15.0.234.218
                                  Available with Ubuntu Pro
  linux-image-virtual             4.15.0.234.218
                                  Available with Ubuntu Pro

Ubuntu 16.04 LTS
  linux-image-4.15.0-234-generic  4.15.0-234.246~16.04.1
                                  Available with Ubuntu Pro
  linux-image-4.15.0-234-lowlatency  4.15.0-234.246~16.04.1
                                  Available with Ubuntu Pro
  linux-image-generic-hwe-16.04   4.15.0.234.246~16.04.1
                                  Available with Ubuntu Pro
  linux-image-lowlatency-hwe-16.04  4.15.0.234.246~16.04.1
                                  Available with Ubuntu Pro
  linux-image-oem                 4.15.0.234.246~16.04.1
                                  Available with Ubuntu Pro
  linux-image-virtual-hwe-16.04   4.15.0.234.246~16.04.1
                                  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-7296-1

CVE-2025-0927

Severity
critical
Lowest
Low
Medium
High
Critical

==========================================================================

Topics%20covered

Topics Covered

security advisory denial of service kernel update Ubuntu heap overflow doS system update system crash Linux kernel HFS+ HFS+ overflow

Package Information

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