Bug 1779594 (CVE-2019-19332)
| Summary: | CVE-2019-19332 Kernel: kvm: OOB memory write via kvm_dev_ioctl_get_cpuid | ||
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| Product: | [Other] Security Response | Reporter: | Prasad Pandit <ppandit> |
| 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, bhu, blc, brdeoliv, bskeggs, dhoward, dvlasenk, esammons, fhrbata, hdegoede, hkrzesin, iboverma, ichavero, itamar, jarodwilson, jeremy, jforbes, jglisse, jlelli, john.j5live, jonathan, josef, jross, jshortt, jstancek, jwboyer, kernel-maint, kernel-mgr, lgoncalv, linville, masami256, matt, mchehab, mcressma, mjg59, mlangsdo, nmurray, qzhao, rt-maint, rvrbovsk, steved, williams |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: |
An out-of-bounds memory write issue was found in the way the Linux kernel's KVM hypervisor handled the 'KVM_GET_EMULATED_CPUID' ioctl(2) request to get CPUID features emulated by the KVM hypervisor. A user or process able to access the '/dev/kvm' device could use this flaw to crash the system, resulting in a denial of service.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2020-09-29 21:59:07 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: | 1783451, 1783455, 1783456, 1783457, 1783458 | ||
| Bug Blocks: | 1779591 | ||
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Description
Prasad Pandit
2019-12-04 10:36:39 UTC
Created kernel tracking bugs for this issue: Affects: fedora-all [bug 1783451] Statement: This issue does not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG 2. This issue affects the version of the kernel package as shipped with Red Hat Enterprise Linux 7 and 8. Future kernel updates for Red Hat Enterprise Linux 7 and 8 may address this issue. External References: https://www.openwall.com/lists/oss-security/2019/12/16/1 https://lore.kernel.org/kvm/000000000000ea5ec20598d90e50@google.com/ This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2020:4062 https://access.redhat.com/errata/RHSA-2020:4062 This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2020:4060 https://access.redhat.com/errata/RHSA-2020:4060 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-2019-19332 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2020:4431 https://access.redhat.com/errata/RHSA-2020:4431 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2020:4609 https://access.redhat.com/errata/RHSA-2020:4609 |