Bug 1153322 (CVE-2014-3690)
Summary: | CVE-2014-3690 kernel: kvm: vmx: invalid host cr4 handling across vm entries | ||
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Product: | [Other] Security Response | Reporter: | Petr Matousek <pmatouse> |
Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
Status: | CLOSED ERRATA | QA Contact: | |
Severity: | medium | Docs Contact: | |
Priority: | medium | ||
Version: | unspecified | CC: | aquini, carnil, dhoward, drjones, fhrbata, fweimer, kernel-mgr, mmilgram, nmurray, pbonzini, plougher, rvrbovsk, security-response-team |
Target Milestone: | --- | Keywords: | Security |
Target Release: | --- | ||
Hardware: | All | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | Bug Fix | |
Doc Text: |
It was found that the Linux kernel's KVM implementation did not ensure that the host CR4 control register value remained unchanged across VM entries on the same virtual CPU. A local, unprivileged user could use this flaw to cause a denial of service on the system.
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Story Points: | --- |
Clone Of: | Environment: | ||
Last Closed: | 2019-06-08 02:35:13 UTC | Type: | --- |
Regression: | --- | Mount Type: | --- |
Documentation: | --- | CRM: | |
Verified Versions: | Category: | --- | |
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
Cloudforms Team: | --- | Target Upstream Version: | |
Embargoed: | |||
Bug Depends On: | 1153326, 1153327, 1153328, 1153329, 1155372, 1170559 | ||
Bug Blocks: | 1153325 |
Description
Petr Matousek
2014-10-15 19:02:42 UTC
Statement: This issue does affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 6 and 7. Future updates may address this issue in the respective Red Hat Enterprise Linux releases. This issue does affect the kvm packages as shipped with Red Hat Enterprise Linux 5, even though the impact is limited. Red Hat Enterprise Linux 5 is now in Production 3 Phase of the support and maintenance life cycle. This has been rated as having Moderate security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/. This issue is public now: http://seclists.org/oss-sec/2014/q4/416 Upstream fix: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d974baa398f34393db76be45f7d4d04fbdbb4a0a Created kernel tracking bugs for this issue: Affects: fedora-all [bug 1155372] kernel-3.16.6-202.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report. kernel-3.17.2-300.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report. kernel-3.14.23-100.fc19 has been pushed to the Fedora 19 stable repository. If problems still persist, please make note of it in this bug report. This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2015:0290 https://rhn.redhat.com/errata/RHSA-2015-0290.html This issue has been addressed in the following products: Red Hat Enterprise Linux 6.5 EUS - Server and Compute Node Only Via RHSA-2015:0782 https://rhn.redhat.com/errata/RHSA-2015-0782.html This issue has been addressed in the following products: Red Hat Enterprise Linux 6 Via RHSA-2015:0864 https://rhn.redhat.com/errata/RHSA-2015-0864.html |