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NVD Vulnerability Details :

CVE-2021-43056

Modified

Source-cve@mitre.org

Published At-28 Oct, 2021 | 04:15

Updated At-07 Nov, 2023 | 03:39

An issue was discovered in the Linux kernel for powerpc before 5.14.15. It allows a malicious KVM guest to crash the host, when the host is running on Power8, due to an arch/powerpc/kvm/book3s_hv_rmhandlers.S implementation bug in the handling of the SRR1 register values.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Primary	3.1	5.5	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Primary	2.0	4.9	MEDIUM	AV:L/AC:L/Au:N/C:N/I:N/A:C

CPE Matches

Linux Kernel Organization, Inc

>>linux_kernel>>Versions from 5.2(inclusive) to 5.4.15(exclusive)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Fedora Project

>>fedora>>33

cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*

Fedora Project

>>fedora>>34

cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*

Fedora Project

>>fedora>>35

cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*

Weaknesses

CWE ID	Type	Source
NVD-CWE-noinfo	Primary	nvd@nist.gov

References

Hyperlink	Source	Resource
http://www.openwall.com/lists/oss-security/2021/10/28/1	cve@mitre.org	Mailing List Patch Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.15	cve@mitre.org	Release Notes Vendor Advisory
https://git.kernel.org/linus/cdeb5d7d890e14f3b70e8087e745c4a6a7d9f337	cve@mitre.org	Patch Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AA7EAPPKWG4LMTQQLNNSKATY6ST2KQFE/	cve@mitre.org	N/A
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BBM4FP3IT3JZ2O7EBS7TEOG657N4ZGRE/	cve@mitre.org	N/A
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RRAIS3PG4EV5WFLYESR6FXWM4BJJGWVA/	cve@mitre.org	N/A
https://lore.kernel.org/linuxppc-dev/87pmrtbbdt.fsf%40mpe.ellerman.id.au/T/#u	cve@mitre.org	N/A

CISA Catalog

Metrics

CPE Matches

Weaknesses

Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References

Change History