NULL Pointer Dereference Affecting kernel-tools-debuginfo package, versions <0:4.14.281-212.502.amzn2


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.25% (16th percentile)

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  • Snyk IDSNYK-AMZN2-KERNELTOOLSDEBUGINFO-5881334
  • published6 Sept 2023
  • disclosed21 Aug 2023

Introduced: 21 Aug 2023

CVE-2023-4459  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 kernel-tools-debuginfo to version 0:4.14.281-212.502.amzn2 or higher.
This issue was patched in ALAS2-2022-1798.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-tools-debuginfo package and not the kernel-tools-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

A NULL pointer dereference flaw was found in vmxnet3_rq_cleanup in drivers/net/vmxnet3/vmxnet3_drv.c in the networking sub-component in vmxnet3 in the Linux Kernel. This issue may allow a local attacker with normal user privilege to cause a denial of service due to a missing sanity check during cleanup.

CVSS Base Scores

version 3.1