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Red Hat: CVE-2024-1086: kernel: nf_tables: use-after-free vulnerability in the nft_verdict_init() function (Multiple Advisories)

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Red Hat: CVE-2024-1086: kernel: nf_tables: use-after-free vulnerability in the nft_verdict_init() function (Multiple Advisories)

Severity
6
CVSS
(AV:L/AC:H/Au:S/C:C/I:C/A:C)
Published
01/31/2024
Created
02/23/2024
Added
02/22/2024
Modified
12/05/2024

Description

A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. The nft_verdict_init() function allows positive values as drop error within the hook verdict, and hence the nf_hook_slow() function can cause a double free vulnerability when NF_DROP is issued with a drop error which resembles NF_ACCEPT. We recommend upgrading past commit f342de4e2f33e0e39165d8639387aa6c19dff660.

Solution(s)

  • redhat-upgrade-kernel
  • redhat-upgrade-kernel-rt

References

  • CVE-2024-1086
  • RHSA-2024:0930
  • RHSA-2024:1018
  • RHSA-2024:1019
  • RHSA-2024:1249
  • RHSA-2024:1332
  • RHSA-2024:1404
  • RHSA-2024:1607
  • RHSA-2024:1614
  • RHSA-2024:2394
  • RHSA-2024:2697
  • RHSA-2024:3414
  • RHSA-2024:3421
  • RHSA-2024:3427
  • RHSA-2024:4073
  • RHSA-2024:4074
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