Amazon Linux 2 Security Advisory: ALASKERNEL-5.15-2022-006
Advisory Release Date: 2022-08-15 21:23 Pacific
Advisory Updated Date: 2022-08-19 18:29 Pacific
A flaw was found in hw. Mis-trained branch predictions for return instructions may allow arbitrary speculative code execution under certain microarchitecture-dependent conditions. (CVE-2022-23816)
A flaw was found in hw. Aliases in the branch predictor may cause some AMD processors to predict the wrong branch type, potentially leading to information disclosure. (CVE-2022-23825)
A flaw was found in hw. In certain processors with Intel's Enhanced Indirect Branch Restricted Speculation (eIBRS) capabilities, soon after VM exit or IBPB command event, the linear address following the most recent near CALL instruction prior to a VM exit may be used as the Return Stack Buffer (RSB) prediction. (CVE-2022-26373)
A flaw was found in hw. The unprotected alternative channel of return branch target prediction in some Intel(R) Processors may allow an authorized user to enable information disclosure via local access. (CVE-2022-28693)
A flaw was found in hw. Mis-trained branch predictions for return instructions may allow arbitrary speculative code execution under certain microarchitecture-dependent conditions. (CVE-2022-29900)
A flaw was found in hw. Non-transparent sharing of branch predictor targets between contexts in some Intel(R) processors may potentially allow an authorized user to enable information disclosure via local access. (CVE-2022-29901)
Affected Packages:
kernel
Issue Correction:
Run yum update kernel to update your system.
aarch64:
kernel-5.15.57-29.131.amzn2.aarch64
kernel-headers-5.15.57-29.131.amzn2.aarch64
kernel-debuginfo-common-aarch64-5.15.57-29.131.amzn2.aarch64
perf-5.15.57-29.131.amzn2.aarch64
perf-debuginfo-5.15.57-29.131.amzn2.aarch64
python-perf-5.15.57-29.131.amzn2.aarch64
python-perf-debuginfo-5.15.57-29.131.amzn2.aarch64
kernel-tools-5.15.57-29.131.amzn2.aarch64
kernel-tools-devel-5.15.57-29.131.amzn2.aarch64
kernel-tools-debuginfo-5.15.57-29.131.amzn2.aarch64
bpftool-5.15.57-29.131.amzn2.aarch64
bpftool-debuginfo-5.15.57-29.131.amzn2.aarch64
kernel-devel-5.15.57-29.131.amzn2.aarch64
kernel-debuginfo-5.15.57-29.131.amzn2.aarch64
kernel-livepatch-5.15.57-29.131-1.0-0.amzn2.aarch64
i686:
kernel-headers-5.15.57-29.131.amzn2.i686
src:
kernel-5.15.57-29.131.amzn2.src
x86_64:
kernel-5.15.57-29.131.amzn2.x86_64
kernel-headers-5.15.57-29.131.amzn2.x86_64
kernel-debuginfo-common-x86_64-5.15.57-29.131.amzn2.x86_64
perf-5.15.57-29.131.amzn2.x86_64
perf-debuginfo-5.15.57-29.131.amzn2.x86_64
python-perf-5.15.57-29.131.amzn2.x86_64
python-perf-debuginfo-5.15.57-29.131.amzn2.x86_64
kernel-tools-5.15.57-29.131.amzn2.x86_64
kernel-tools-devel-5.15.57-29.131.amzn2.x86_64
kernel-tools-debuginfo-5.15.57-29.131.amzn2.x86_64
bpftool-5.15.57-29.131.amzn2.x86_64
bpftool-debuginfo-5.15.57-29.131.amzn2.x86_64
kernel-devel-5.15.57-29.131.amzn2.x86_64
kernel-debuginfo-5.15.57-29.131.amzn2.x86_64
kernel-livepatch-5.15.57-29.131-1.0-0.amzn2.x86_64