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Rocky Linux: CVE-2021-3600: Moderate: kernel security, bug fix, and enhancement update (Multiple Advisories)

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Rocky Linux: CVE-2021-3600: Moderate: kernel security, bug fix, and enhancement update (Multiple Advisories)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
11/16/2021
Created
05/06/2022
Added
05/05/2022
Modified
02/28/2023

Description

A flaw was found in the Linux kernel’s eBPF verification code, where the eBPF 32-bit div/mod source register truncation could lead to out-of-bounds reads and writes. By default, accessing the eBPF verifier is only possible to privileged users with CAP_SYS_ADMIN. This flaw allows a local user who can run eBPF instructions to crash the system or possibly escalate their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Solution(s)

  • rocky-upgrade-bpftool
  • rocky-upgrade-bpftool-debuginfo
  • rocky-upgrade-kernel
  • rocky-upgrade-kernel-abi-stablelists
  • rocky-upgrade-kernel-core
  • rocky-upgrade-kernel-cross-headers
  • rocky-upgrade-kernel-debug
  • rocky-upgrade-kernel-debug-core
  • rocky-upgrade-kernel-debug-debuginfo
  • rocky-upgrade-kernel-debug-devel
  • rocky-upgrade-kernel-debug-modules
  • rocky-upgrade-kernel-debug-modules-extra
  • rocky-upgrade-kernel-debuginfo
  • rocky-upgrade-kernel-debuginfo-common-aarch64
  • rocky-upgrade-kernel-debuginfo-common-x86_64
  • rocky-upgrade-kernel-devel
  • rocky-upgrade-kernel-doc
  • rocky-upgrade-kernel-headers
  • rocky-upgrade-kernel-modules
  • rocky-upgrade-kernel-modules-extra
  • rocky-upgrade-kernel-rt
  • rocky-upgrade-kernel-rt-core
  • rocky-upgrade-kernel-rt-debug
  • rocky-upgrade-kernel-rt-debug-core
  • rocky-upgrade-kernel-rt-debug-debuginfo
  • rocky-upgrade-kernel-rt-debug-devel
  • rocky-upgrade-kernel-rt-debug-modules
  • rocky-upgrade-kernel-rt-debug-modules-extra
  • rocky-upgrade-kernel-rt-debuginfo
  • rocky-upgrade-kernel-rt-debuginfo-common-x86_64
  • rocky-upgrade-kernel-rt-devel
  • rocky-upgrade-kernel-rt-modules
  • rocky-upgrade-kernel-rt-modules-extra
  • rocky-upgrade-kernel-tools
  • rocky-upgrade-kernel-tools-debuginfo
  • rocky-upgrade-kernel-tools-libs
  • rocky-upgrade-kernel-tools-libs-devel
  • rocky-upgrade-perf
  • rocky-upgrade-perf-debuginfo
  • rocky-upgrade-python3-perf
  • rocky-upgrade-python3-perf-debuginfo

References

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