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Out-of-bounds Write The advisory has been revoked - it doesn't affect any version of package kernel-devel  (opens in a new tab)

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  • Snyk IDSNYK-CENTOS8-KERNELDEVEL-6511709
  • published28 Mar 2024
  • disclosed28 Mar 2024
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Introduced: 28 Mar 2024

CVE-2023-52628  (opens in a new tab)
CWE-787  (opens in a new tab)

Amendment

The Centos security team deemed this advisory irrelevant for Centos:8.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-devel package and not the kernel-devel package as distributed by Centos.

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

netfilter: nftables: exthdr: fix 4-byte stack OOB write

If priv->len is a multiple of 4, then dst[len / 4] can write past the destination array which leads to stack corruption.

This construct is necessary to clean the remainder of the register in case ->len is NOT a multiple of the register size, so make it conditional just like nft_payload.c does.

The bug was added in 4.1 cycle and then copied/inherited when tcp/sctp and ip option support was added.

Bug reported by Zero Day Initiative project (ZDI-CAN-21950, ZDI-CAN-21951, ZDI-CAN-21961).