Bug 1589890 (CVE-2018-10853)
Summary: | CVE-2018-10853 kernel: kvm: guest userspace to guest kernel write | ||
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Product: | [Other] Security Response | Reporter: | Laura Pardo <lpardo> |
Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
Status: | CLOSED ERRATA | QA Contact: | |
Severity: | medium | Docs Contact: | |
Priority: | medium | ||
Version: | unspecified | CC: | acaringi, airlied, aquini, bhu, blc, brdeoliv, bskeggs, dhoward, dvlasenk, ewk, fhrbata, hdegoede, hkrzesin, hwkernel-mgr, iboverma, ichavero, itamar, jarodwilson, jforbes, jglisse, jkacur, john.j5live, jonathan, josef, jross, jstancek, jwboyer, kernel-maint, kernel-mgr, labbott, lgoncalv, linville, lwang, matt, mchehab, mcressma, mjg59, mlangsdo, mvanderw, nmurray, plougher, ppandit, rt-maint, rvrbovsk, skozina, steved, williams |
Target Milestone: | --- | Keywords: | Security |
Target Release: | --- | ||
Hardware: | All | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | kernel 4.18 | Doc Type: | Bug Fix |
Doc Text: |
A flaw was found in the way Linux kernel KVM hypervisor emulated instructions such as sgdt/sidt/fxsave/fxrstor. It did not check current privilege(CPL) level while emulating unprivileged instructions. An unprivileged guest user/process could use this flaw to potentially escalate privileges inside guest.
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Story Points: | --- |
Clone Of: | Environment: | ||
Last Closed: | 2019-08-06 13:18:50 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: | 1589892, 1589893, 1624638, 1657358, 1772227, 1772228, 1772229, 1772230, 1788044 | ||
Bug Blocks: | 1589767 |
Description
Laura Pardo
2018-06-11 15:25:59 UTC
Created kernel tracking bugs for this issue: Affects: fedora-all [bug 1589892] Acknowledgments: Name: Andy Lutomirski, Mika Penttilä This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2019:2029 https://access.redhat.com/errata/RHSA-2019:2029 This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2019:2043 https://access.redhat.com/errata/RHSA-2019:2043 This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2018-10853 This issue has been addressed in the following products: Red Hat Enterprise Linux 7.5 Extended Update Support Via RHSA-2020:0036 https://access.redhat.com/errata/RHSA-2020:0036 This issue has been addressed in the following products: Red Hat Enterprise Linux 7.4 Advanced Update Support Red Hat Enterprise Linux 7.4 Update Services for SAP Solutions Red Hat Enterprise Linux 7.4 Telco Extended Update Support Via RHSA-2020:0103 https://access.redhat.com/errata/RHSA-2020:0103 This issue has been addressed in the following products: Red Hat Enterprise Linux 7.6 Extended Update Support Via RHSA-2020:0179 https://access.redhat.com/errata/RHSA-2020:0179 |