CVE-2024-38586 Affecting kernel-rt-debuginfo package, versions <0:4.18.0-553.27.1.rt7.368.el8_10


Severity

Recommended
medium

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.04% (13th percentile)

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  • Snyk IDSNYK-ROCKY8-KERNELRTDEBUGINFO-8364106
  • published9 Nov 2024
  • disclosed19 Jun 2024

Introduced: 19 Jun 2024

CVE-2024-38586  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 kernel-rt-debuginfo to version 0:4.18.0-553.27.1.rt7.368.el8_10 or higher.
This issue was patched in RLSA-2024:8870.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-debuginfo package and not the kernel-rt-debuginfo package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:8 relevant fixed versions and status.

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

r8169: Fix possible ring buffer corruption on fragmented Tx packets.

An issue was found on the RTL8125b when transmitting small fragmented packets, whereby invalid entries were inserted into the transmit ring buffer, subsequently leading to calls to dma_unmap_single() with a null address.

This was caused by rtl8169_start_xmit() not noticing changes to nr_frags which may occur when small packets are padded (to work around hardware quirks) in rtl8169_tso_csum_v2().

To fix this, postpone inspecting nr_frags until after any padding has been applied.

CVSS Scores

version 3.1