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Oracle Linux: CVE-2024-27397: ELSA-2024-4583: kernel security update (IMPORTANT) (Multiple Advisories)

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Oracle Linux: CVE-2024-27397: ELSA-2024-4583:kernel security update (IMPORTANT) (Multiple Advisories)

Severity
6
CVSS
(AV:L/AC:H/Au:S/C:C/I:C/A:C)
Published
05/08/2024
Created
07/04/2024
Added
07/03/2024
Modified
01/23/2025

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: use timestamp to check for set element timeout Add a timestamp field at the beginning of the transaction, store it in the nftables per-netns area. Update set backend .insert, .deactivate and sync gc path to use the timestamp, this avoids that an element expires while control plane transaction is still unfinished. .lookup and .update, which are used from packet path, still use the current time to check if the element has expired. And .get path and dump also since this runs lockless under rcu read size lock. Then, there is async gc which also needs to check the current time since it runs asynchronously from a workqueue. A use-after-free flaw was found in the Linux kernel’s netfilter subsystem in how a user triggers the element timeout. This flaw allows a local user to crash or potentially escalate their privileges on the system.

Solution(s)

  • oracle-linux-upgrade-kernel
  • oracle-linux-upgrade-kernel-uek

References

  • https://attackerkb.com/topics/cve-2024-27397
  • CVE - 2024-27397
  • ELSA-2024-4583
  • ELSA-2024-12782
  • ELSA-2024-12780
  • ELSA-2024-4211
  • ELSA-2024-12796
  • ELSA-2024-12830
View more
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  • 已创建
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