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Amazon Linux AMI 2: CVE-2024-27020: Security patch for kernel, kernel-livepatch-4.14.344-262.563, kernel-livepatch-4.14.345-262.561 (Multiple Advisories)

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Amazon Linux AMI 2: CVE-2024-27020: Security patch for kernel, kernel-livepatch-4.14.344-262.563, kernel-livepatch-4.14.345-262.561 (Multiple Advisories)

Severity
7
CVSS
(AV:L/AC:M/Au:S/C:C/I:C/A:C)
Published
05/01/2024
Created
08/03/2024
Added
08/02/2024
Modified
01/28/2025

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: Fix potential data-race in __nft_expr_type_get() nft_unregister_expr() can concurrent with __nft_expr_type_get(), and there is not any protection when iterate over nf_tables_expressions list in __nft_expr_type_get(). Therefore, there is potential data-race of nf_tables_expressions list entry. Use list_for_each_entry_rcu() to iterate over nf_tables_expressions list in __nft_expr_type_get(), and use rcu_read_lock() in the caller nft_expr_type_get() to protect the entire type query process.

Solution(s)

  • amazon-linux-ami-2-upgrade-bpftool
  • amazon-linux-ami-2-upgrade-bpftool-debuginfo
  • amazon-linux-ami-2-upgrade-kernel
  • amazon-linux-ami-2-upgrade-kernel-debuginfo
  • amazon-linux-ami-2-upgrade-kernel-debuginfo-common-aarch64
  • amazon-linux-ami-2-upgrade-kernel-debuginfo-common-x86_64
  • amazon-linux-ami-2-upgrade-kernel-devel
  • amazon-linux-ami-2-upgrade-kernel-headers
  • amazon-linux-ami-2-upgrade-kernel-livepatch-4-14-344-262-563
  • amazon-linux-ami-2-upgrade-kernel-livepatch-4-14-344-262-563-debuginfo
  • amazon-linux-ami-2-upgrade-kernel-livepatch-4-14-345-262-561
  • amazon-linux-ami-2-upgrade-kernel-livepatch-4-14-345-262-561-debuginfo
  • amazon-linux-ami-2-upgrade-kernel-livepatch-4-14-348-265-562
  • amazon-linux-ami-2-upgrade-kernel-livepatch-5-10-216-204-855
  • amazon-linux-ami-2-upgrade-kernel-livepatch-5-15-158-103-164
  • amazon-linux-ami-2-upgrade-kernel-tools
  • amazon-linux-ami-2-upgrade-kernel-tools-debuginfo
  • amazon-linux-ami-2-upgrade-kernel-tools-devel
  • amazon-linux-ami-2-upgrade-perf
  • amazon-linux-ami-2-upgrade-perf-debuginfo
  • amazon-linux-ami-2-upgrade-python-perf
  • amazon-linux-ami-2-upgrade-python-perf-debuginfo

References

  • https://attackerkb.com/topics/cve-2024-27020
  • AL2/ALAS-2024-2581
  • AL2/ALASKERNEL-5.10-2024-067
  • AL2/ALASKERNEL-5.15-2024-048
  • AL2/ALASKERNEL-5.4-2024-078
  • AL2/ALASLIVEPATCH-2024-181
  • AL2/ALASLIVEPATCH-2024-182
  • CVE - 2024-27020
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