Executive Summary

Informations
Name CVE-2023-46813 First vendor Publication 2023-10-27
Vendor Cve Last vendor Modification 2024-01-11

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 7
Base Score 7 Environmental Score 7
impact SubScore 5.9 Temporal Score 7
Exploitabality Sub Score 1
 
Attack Vector Local Attack Complexity High
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

An issue was discovered in the Linux kernel before 6.5.9, exploitable by local users with userspace access to MMIO registers. Incorrect access checking in the #VC handler and instruction emulation of the SEV-ES emulation of MMIO accesses could lead to arbitrary write access to kernel memory (and thus privilege escalation). This depends on a race condition through which userspace can replace an instruction before the #VC handler reads it.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-46813

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 8
Os 3548

Sources (Detail)

https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html
Source Url
MISC https://bugzilla.suse.com/show_bug.cgi?id=1212649
https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.9
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id...
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id...
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id...

Alert History

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Date Informations
2024-02-02 02:49:34
  • Multiple Updates
2024-02-01 12:31:18
  • Multiple Updates
2024-01-12 00:27:51
  • Multiple Updates
2023-12-29 02:38:24
  • Multiple Updates
2023-11-22 02:36:47
  • Multiple Updates
2023-11-08 00:27:33
  • Multiple Updates
2023-10-28 02:32:59
  • Multiple Updates
2023-10-28 02:32:43
  • Multiple Updates
2023-10-27 17:27:22
  • Multiple Updates
2023-10-27 09:27:23
  • First insertion