Out-of-bounds Write Affecting kernel-core package, versions <0:5.14.0-70.101.1.el9_0
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Test your applications- Snyk ID SNYK-RHEL9-KERNELCORE-7152477
- published 29 May 2024
- disclosed 28 Mar 2024
Introduced: 28 Mar 2024
CVE-2023-52628 Open this link in a new tabHow to fix?
Upgrade RHEL:9 kernel-core to version 0:5.14.0-70.101.1.el9_0 or higher.
This issue was patched in RHSA-2024:3421.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-core package and not the kernel-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:
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).
References
- https://access.redhat.com/security/cve/CVE-2023-52628
- https://git.kernel.org/stable/c/1ad7b189cc1411048434e8595ffcbe7873b71082
- https://git.kernel.org/stable/c/a7d86a77c33ba1c357a7504341172cc1507f0698
- https://git.kernel.org/stable/c/c8f292322ff16b9a2272a67de396c09a50e09dce
- https://git.kernel.org/stable/c/d9ebfc0f21377690837ebbd119e679243e0099cc
- https://git.kernel.org/stable/c/fd94d9dadee58e09b49075240fe83423eb1dcd36
- https://git.kernel.org/stable/c/28a97c43c9e32f437ebb8d6126f9bb7f3ca9521a
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
- https://git.kernel.org/stable/c/cf39c4f77a773a547ac2bcf30ecdd303bb0c80cb