1. 내용
PowerPC 플랫폼에서 Count Cache와 Link Stack의
소프트웨어 플러시를 구현하는 방식에서 결함이 발견.
프로세스 간에 정보가 누출될 수 있는 SpectreRSB와 같은 공격을 방지한다.
2. 업데이트 방법
yum update kernel
3. 관련 패키지
bpftool-3.10.0-1062.21.1.el7.x86_64.rpm
bpftool-debuginfo-3.10.0-1062.21.1.el7.x86_64.rpm
bpftool-debuginfo-3.10.0-1062.21.1.el7.x86_64.rpm
kernel-3.10.0-1062.21.1.el7.x86_64.rpm
kernel-abi-whitelists-3.10.0-1062.21.1.el7.noarch.rpm
kernel-debug-3.10.0-1062.21.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.21.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.21.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-1062.21.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.21.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.21.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.21.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.21.1.el7.x86_64.rpm
kernel-devel-3.10.0-1062.21.1.el7.x86_64.rpm
kernel-doc-3.10.0-1062.21.1.el7.noarch.rpm
kernel-headers-3.10.0-1062.21.1.el7.x86_64.rpm
kernel-tools-3.10.0-1062.21.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.21.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.21.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-1062.21.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-1062.21.1.el7.x86_64.rpm
perf-3.10.0-1062.21.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.21.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.21.1.el7.x86_64.rpm
python-perf-3.10.0-1062.21.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.21.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.21.1.el7.x86_64.rpm
4. CVE-ID
CVE-2019-18660
5. 참조
https://access.redhat.com/errata/RHSA-2020:1984