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Oracle Linux: CVE-2023-31436: ELSA-2023-7077: kernel security, bug fix, and enhancement update (IMPORTANT) (Multiple Advisories)

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Oracle Linux: CVE-2023-31436: ELSA-2023-7077:kernel security, bug fix, and enhancement update (IMPORTANT) (Multiple Advisories)

Severity
6
CVSS
(AV:L/AC:H/Au:S/C:C/I:C/A:C)
Published
04/13/2023
Created
11/24/2023
Added
11/22/2023
Modified
01/07/2025

Description

qfq_change_class in net/sched/sch_qfq.c in the Linux kernel before 6.2.13 allows an out-of-bounds write because lmax can exceed QFQ_MIN_LMAX. An out-of-bounds memory access flaw was found in the Linux kernel’s traffic control (QoS) subsystem in how a user triggers the qfq_change_class function with an incorrect MTU value of the network device used as lmax. This flaw allows a local user to crash or potentially escalate their privileges on the system.

Solution(s)

  • oracle-linux-upgrade-kernel

References

  • https://attackerkb.com/topics/cve-2023-31436
  • CVE - 2023-31436
  • ELSA-2023-7077
  • ELSA-2024-1831
  • 查看数 696
  • 已创建
  • 最后回复

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