Synopsis: ELSA-2022-9481 can now be patched using Ksplice CVEs: CVE-2022-21123 CVE-2022-21125 CVE-2022-21127 CVE-2022-21166
Users with Oracle Linux Premier Support can now use Ksplice to patch against the latest Oracle Linux Security Advisory, ELSA-2022-9481. More information about this errata can be found at https://linux.oracle.com/errata/ELSA-2022-9481.html INSTALLING THE UPDATES We recommend that all users of Ksplice Uptrack running UEKR6 5.4.17 on OL7 and OL8 install these updates. On systems that have "autoinstall = yes" in /etc/uptrack/uptrack.conf, these updates will be installed automatically and you do not need to take any action. Alternatively, you can install these updates by running: # /usr/sbin/uptrack-upgrade -y DESCRIPTION * CVE-2022-21123, CVE-2022-21125, CVE-2022-21127, CVE-2022-21166: Information leak using processor MMIO stale data. A side-channel information leak on some generations of Intel processors could allow the leaking of internal microarchitectural buffers when MMIO is in used. Updated microcode is required for this vulnerability to be mitigated. The status of the mitigation can be found using the following command: $ cat /sys/devices/system/cpu/vulnerabilities/mmio_stale_data And the mitigation can be disabled with following command: $ echo 0 > /sys/kernel/debug/x86/mmio_stale_data_clear Orabug: 34202259 SUPPORT Ksplice support is available at [email protected]. _______________________________________________ El-errata mailing list [email protected] https://oss.oracle.com/mailman/listinfo/el-errata
