State Issues Affecting kernel-rt-debug-core package, versions <0:5.14.0-70.117.1.rt21.189.el9_0


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (15th percentile)

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  • Snyk IDSNYK-RHEL9-KERNELRTDEBUGCORE-8081619
  • published24 Sept 2024
  • disclosed16 Jul 2024

Introduced: 16 Jul 2024

CVE-2022-48786  (opens in a new tab)
CWE-371  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade RHEL:9 kernel-rt-debug-core to version 0:5.14.0-70.117.1.rt21.189.el9_0 or higher.
This issue was patched in RHSA-2024:6990.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-core package and not the kernel-rt-debug-core package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

vsock: remove vsock from connected table when connect is interrupted by a signal

vsock_connect() expects that the socket could already be in the TCP_ESTABLISHED state when the connecting task wakes up with a signal pending. If this happens the socket will be in the connected table, and it is not removed when the socket state is reset. In this situation it's common for the process to retry connect(), and if the connection is successful the socket will be added to the connected table a second time, corrupting the list.

Prevent this by calling vsock_remove_connected() if a signal is received while waiting for a connection. This is harmless if the socket is not in the connected table, and if it is in the table then removing it will prevent list corruption from a double add.

Note for backporting: this patch requires d5afa82c977e ("vsock: correct removal of socket from the list"), which is in all current stable trees except 4.9.y.

CVSS Scores

version 3.1