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Oracle Linux: CVE-2024-26643: ELSA-2024-3618: kernel update (MODERATE) (Multiple Advisories)

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Oracle Linux: CVE-2024-26643: ELSA-2024-3618:kernel update (MODERATE) (Multiple Advisories)

Severity
4
CVSS
(AV:L/AC:H/Au:S/C:N/I:N/A:C)
Published
03/21/2024
Created
05/28/2024
Added
05/25/2024
Modified
01/07/2025

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: mark set as dead when unbinding anonymous set with timeout While the rhashtable set gc runs asynchronously, a race allows it to collect elements from anonymous sets with timeouts while it is being released from the commit path. Mingi Cho originally reported this issue in a different path in 6.1.x with a pipapo set with low timeouts which is not possible upstream since 7395dfacfff6 ("netfilter: nf_tables: use timestamp to check for set element timeout"). Fix this by setting on the dead flag for anonymous sets to skip async gc in this case. According to 08e4c8c5919f ("netfilter: nf_tables: mark newset as dead on transaction abort"), Florian plans to accelerate abort path by releasing objects via workqueue, therefore, this sets on the dead flag for abort path too. A vulnerability was found in the netfilter/nf_tables subsystem of Linux Kernel, where a race condition caused where the garbage collector could prematurely collect elements from anonymous sets with timeouts while they were being released.

Solution(s)

  • oracle-linux-upgrade-kernel

References

  • https://attackerkb.com/topics/cve-2024-26643
  • CVE - 2024-26643
  • ELSA-2024-3618
  • ELSA-2024-3306
  • 查看数 705
  • 已创建
  • 最后回复

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