Red Hat Security Advisory: OpenShift Container Platform 4.2.5 machine-os-content-container security update
An update for machine-os-content-container is now available for Red Hat OpenShift Container Platform 4.2. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
beschreibt (2)
Zugehörige CVEs.
| ID | Schweregrad | ausnutzbar | ||
|---|---|---|---|---|
| CVE-2018-12207US | medium6.5 | — | ||
Improper invalidation for page table updates by a virtual guest operating system for multiple Intel(R) Processors may allow an authenticated user to potentially enable denial of se… | ||||
| CVE-2019-14287US | high8.8 | Exploit | ||
In Sudo before 1.8.28, an attacker with access to a Runas ALL sudoer account can bypass certain policy blacklists and session PAM modules, and can cause incorrect logging, by invok… | ||||
Referenzen
Externe Belege — Patches, Meldungen, Analysen.
Behebungen (4)
- BehobenRed Hat OpenShift Container Platform 4
See the following documentation, which will be updated shortly for release 4.2.5, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.2/release_notes/ocp-4-2-release-notes.html
https://access.redhat.com/errata/RHSA-2019:3916 - BehobenRed Hat OpenShift Container Platform 4
See the following documentation, which will be updated shortly for release 4.2.5, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.2/release_notes/ocp-4-2-release-notes.html
https://access.redhat.com/errata/RHSA-2019:3916 - WorkaroundRed Hat OpenShift Container Platform 4
For mitigation related information, please refer to the Red Hat vulnerability article: https://access.redhat.com/security/vulnerabilities/ifu-page-mce .
- WorkaroundRed Hat OpenShift Container Platform 4
This vulnerability only affects configurations of sudo that have a runas user list that includes an exclusion of root. The most simple example is: ~~~ someuser ALL=(ALL, !root) /usr/bin/somecommand ~~~ The exclusion is specified using an excalamation mark (!). In this example, the "root" user is specified by name. The root user may also be identified in other ways, such as by user id: ~~~ someuser ALL=(ALL, !#0) /usr/bin/somecommand ~~~ or by reference to a runas alias: ~~~ Runas_Alias MYGROUP = root, adminuser someuser ALL=(ALL, !MYGROUP) /usr/bin/somecommand ~~~ To ensure your sudoers configuration is not affected by this vulnerability, we recommend examining each sudoers entry that includes the `!` character in the runas specification, to ensure that the root user is not among the exclusions. These can be found in the /etc/sudoers file or files under /etc/sudoers.d.
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