Synopsis: ELSA-2022-0896 can now be patched using Ksplice CVEs: CVE-2021-3999 CVE-2022-23218 CVE-2022-23219
Users with Oracle Linux Premier Support can now use Ksplice to patch against the latest Oracle Linux Security Advisory, ELSA-2022-0896. INSTALLING THE UPDATES We recommend that all users of Ksplice on OL 8 install these updates. You can install these updates by running: # ksplice -y user upgrade 32-bit applications should be restarted after upgrading the on-disk glibc RPMs and statically linked applications using glibc should be rebuilt to include these fixes. Ksplice user-space patching requires installation of Ksplice-aware packages and the system must be rebooted after the first installation of these packages. Refer to the installation instructions for the Enhanced Ksplice Client in the Ksplice User's Guide for more details. Systems may be prepared for Ksplice patching by installing the Ksplice aware packages in advance, prior to installing the enhanced Ksplice client. DESCRIPTION * CVE-2021-3999: Memory corruption when retrieving current working directory. Logic and arithmetic errors when retrieving the current working directory can lead to a buffer underflow or overflow. This flaw could be exploited by a local attacker to execute arbitrary code and escalate privileges. * CVE-2022-23218, CVE-2022-23219: Buffer overflows in sunrpc service and client creation. Missing length checks during both service and client creation for sunrpc can lead to buffer overflows. These flaws could be exploited by a remote attacker to execute arbitrary code or cause a denial-of-service. SUPPORT Ksplice support is available at [email protected]. _______________________________________________ El-errata mailing list [email protected] https://oss.oracle.com/mailman/listinfo/el-errata
