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Amazon Linux AMI 2: CVE-2021-38300: Security patch for kernel, microvm-kernel (Multiple Advisories)

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Amazon Linux AMI 2: CVE-2021-38300: Security patch for kernel, microvm-kernel (Multiple Advisories)

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
09/20/2021
Created
11/06/2021
Added
11/05/2021
Modified
11/26/2024

Description

arch/mips/net/bpf_jit.c in the Linux kernel before 5.4.10 can generate undesirable machine code when transforming unprivileged cBPF programs, allowing execution of arbitrary code within the kernel context. This occurs because conditional branches can exceed the 128 KB limit of the MIPS architecture.

Solution(s)

  • 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-4-14-252-195-481
  • 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-microvm-kernel
  • amazon-linux-ami-2-upgrade-microvm-kernel-debuginfo
  • amazon-linux-ami-2-upgrade-microvm-kernel-debuginfo-common-aarch64
  • amazon-linux-ami-2-upgrade-microvm-kernel-debuginfo-common-x86_64
  • amazon-linux-ami-2-upgrade-microvm-kernel-devel
  • amazon-linux-ami-2-upgrade-microvm-kernel-headers
  • 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

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