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Oracle Linux: CVE-2023-52628: ELSA-2024-12606: Unbreakable Enterprise kernel security update (IMPORTANT) (Multiple Advisories)

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Oracle Linux: CVE-2023-52628: ELSA-2024-12606: Unbreakable Enterprise kernel security update (IMPORTANT) (Multiple Advisories)

Severity
6
CVSS
(AV:L/AC:H/Au:S/C:C/I:C/A:C)
Published
03/28/2024
Created
10/18/2024
Added
10/16/2024
Modified
10/17/2024

Description

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). An out-of-bounds write flaw was found in the Linux kernel’s Netfilter functionality. This flaw allows a local user to crash or potentially escalate their privileges on the system.

Solution(s)

  • oracle-linux-upgrade-kernel-uek

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