Red Hat Security Advisory: redhat-virtualization-host security update
An update for redhat-virtualization-host is now available for Red Hat Virtualization 4 for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. 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.
describes (2)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2018-16865US | high7.8 | — | ||
An allocation of memory without limits, that could result in the stack clashing with another memory region, was discovered in systemd-journald when many entries are sent to the jou… | ||||
| CVE-2018-16864US | high7.8 | — | ||
An allocation of memory without limits, that could result in the stack clashing with another memory region, was discovered in systemd-journald when a program with long command line… | ||||
references
External citations — patches, advisories, analysis.
- https://access.redhat.com/errata/RHSA-2019:0342self
- https://access.redhat.com/security/updates/classification/#moderateexternal
- 1653855external
- 1653861external
- 1666987external
- 1670318external
- Canonical URLself
remediations (15)
- Fixedredhat-release-virtualization-host-0:4.2-8.1.el7.src as a component of RHEL 7-based RHEV-H for RHEV 4 (build requirements)
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
https://access.redhat.com/errata/RHSA-2019:0342 - Fixedredhat-release-virtualization-host-0:4.2-8.1.el7.src as a component of RHEL 7-based RHEV-H for RHEV 4 (build requirements)
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
https://access.redhat.com/errata/RHSA-2019:0342 - Fixedredhat-release-virtualization-host-0:4.2-8.1.el7.x86_64 as a component of RHEL 7-based RHEV-H for RHEV 4 (build requirements)
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
https://access.redhat.com/errata/RHSA-2019:0342 - Fixedredhat-release-virtualization-host-0:4.2-8.1.el7.x86_64 as a component of RHEL 7-based RHEV-H for RHEV 4 (build requirements)
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
https://access.redhat.com/errata/RHSA-2019:0342 - Fixedredhat-virtualization-host-0:4.2-20190129.0.el7_6.src as a component of Red Hat Virtualization 4 Hypervisor for RHEL 7
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
https://access.redhat.com/errata/RHSA-2019:0342 - Fixedredhat-virtualization-host-0:4.2-20190129.0.el7_6.src as a component of Red Hat Virtualization 4 Hypervisor for RHEL 7
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
https://access.redhat.com/errata/RHSA-2019:0342 - Fixedredhat-virtualization-host-image-update-0:4.2-20190129.0.el7_6.noarch as a component of Red Hat Virtualization 4 Hypervisor for RHEL 7
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
https://access.redhat.com/errata/RHSA-2019:0342 - Fixedredhat-virtualization-host-image-update-0:4.2-20190129.0.el7_6.noarch as a component of Red Hat Virtualization 4 Hypervisor for RHEL 7
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
https://access.redhat.com/errata/RHSA-2019:0342 - Fixedredhat-virtualization-host-image-update-placeholder-0:4.2-8.1.el7.noarch as a component of RHEL 7-based RHEV-H for RHEV 4 (build requirements)
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
https://access.redhat.com/errata/RHSA-2019:0342 - Fixedredhat-virtualization-host-image-update-placeholder-0:4.2-8.1.el7.noarch as a component of RHEL 7-based RHEV-H for RHEV 4 (build requirements)
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
https://access.redhat.com/errata/RHSA-2019:0342 - Workaroundredhat-release-virtualization-host-0:4.2-8.1.el7.src as a component of RHEL 7-based RHEV-H for RHEV 4 (build requirements)
To increase the time an attacker needs to exploit this flaw you could override the `StartLimitInterval=` (called StartLimitIntervalSec in newer systemd versions) and `StartLimitBurst=` settings. In this way the attack may require much longer to be successful. To edit the journald service use `sudo systemctl edit systemd-journald.service` and add: ``` [Service] StartLimitInterval=120 StartLimitBurst=3 ```
- Workaroundredhat-release-virtualization-host-0:4.2-8.1.el7.x86_64 as a component of RHEL 7-based RHEV-H for RHEV 4 (build requirements)
To increase the time an attacker needs to exploit this flaw you could override the `StartLimitInterval=` (called StartLimitIntervalSec in newer systemd versions) and `StartLimitBurst=` settings. In this way the attack may require much longer to be successful. To edit the journald service use `sudo systemctl edit systemd-journald.service` and add: ``` [Service] StartLimitInterval=120 StartLimitBurst=3 ```
- Workaroundredhat-virtualization-host-0:4.2-20190129.0.el7_6.src as a component of Red Hat Virtualization 4 Hypervisor for RHEL 7
To increase the time an attacker needs to exploit this flaw you could override the `StartLimitInterval=` (called StartLimitIntervalSec in newer systemd versions) and `StartLimitBurst=` settings. In this way the attack may require much longer to be successful. To edit the journald service use `sudo systemctl edit systemd-journald.service` and add: ``` [Service] StartLimitInterval=120 StartLimitBurst=3 ```
- Workaroundredhat-virtualization-host-image-update-0:4.2-20190129.0.el7_6.noarch as a component of Red Hat Virtualization 4 Hypervisor for RHEL 7
To increase the time an attacker needs to exploit this flaw you could override the `StartLimitInterval=` (called StartLimitIntervalSec in newer systemd versions) and `StartLimitBurst=` settings. In this way the attack may require much longer to be successful. To edit the journald service use `sudo systemctl edit systemd-journald.service` and add: ``` [Service] StartLimitInterval=120 StartLimitBurst=3 ```
- Workaroundredhat-virtualization-host-image-update-placeholder-0:4.2-8.1.el7.noarch as a component of RHEL 7-based RHEV-H for RHEV 4 (build requirements)
To increase the time an attacker needs to exploit this flaw you could override the `StartLimitInterval=` (called StartLimitIntervalSec in newer systemd versions) and `StartLimitBurst=` settings. In this way the attack may require much longer to be successful. To edit the journald service use `sudo systemctl edit systemd-journald.service` and add: ``` [Service] StartLimitInterval=120 StartLimitBurst=3 ```
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