Executive Summary

Informations
Name CVE-2021-43056 First vendor Publication 2021-10-28
Vendor Cve Last vendor Modification 2021-11-28

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 5.5
Base Score 5.5 Environmental Score 5.5
impact SubScore 3.6 Temporal Score 5.5
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:N/I:N/A:C)
Cvss Base Score 4.9 Attack Range Local
Cvss Impact Score 6.9 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43056

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 3
Os 3354

Sources (Detail)

Source Url
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
MISC https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.15
https://git.kernel.org/linus/cdeb5d7d890e14f3b70e8087e745c4a6a7d9f337
https://lore.kernel.org/linuxppc-dev/87pmrtbbdt.fsf@mpe.ellerman.id.au/T/#u
MLIST http://www.openwall.com/lists/oss-security/2021/10/28/1

Alert History

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Date Informations
2022-03-11 01:59:10
  • Multiple Updates
2022-02-01 01:52:57
  • Multiple Updates
2021-12-11 12:53:38
  • Multiple Updates
2021-12-11 01:50:31
  • Multiple Updates
2021-11-29 05:23:02
  • Multiple Updates
2021-11-18 05:23:02
  • Multiple Updates
2021-11-10 09:23:19
  • Multiple Updates
2021-11-04 09:22:51
  • Multiple Updates
2021-11-03 17:22:56
  • Multiple Updates
2021-10-28 13:22:54
  • Multiple Updates
2021-10-28 12:48:14
  • Multiple Updates
2021-10-28 12:48:13
  • Multiple Updates
2021-10-28 09:22:52
  • First insertion