Access of Resource Using Incompatible Type ('Type Confusion') Affecting kernel-default package, versions <5.14.21-150400.24.55.3


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.04% (5th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Access of Resource Using Incompatible Type ('Type Confusion') vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-SLES154-KERNELDEFAULT-5354104
  • published1 Apr 2023
  • disclosed31 Mar 2023

Introduced: 31 Mar 2023

CVE-2023-1078  (opens in a new tab)
CWE-843  (opens in a new tab)

How to fix?

Upgrade SLES:15.4 kernel-default to version 5.14.21-150400.24.55.3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-default package and not the kernel-default package as distributed by SLES. See How to fix? for SLES:15.4 relevant fixed versions and status.

A flaw was found in the Linux Kernel in RDS (Reliable Datagram Sockets) protocol. The rds_rm_zerocopy_callback() uses list_entry() on the head of a list causing a type confusion. Local user can trigger this with rds_message_put(). Type confusion leads to struct rds_msg_zcopy_info *info actually points to something else that is potentially controlled by local user. It is known how to trigger this, which causes an out of bounds access, and a lock corruption.

CVSS Scores

version 3.1