Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Informations
Name CVE-2020-27674 First vendor Publication 2020-10-22
Vendor Cve Last vendor Modification 2023-11-07

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Overall CVSS Score 5.3
Base Score 5.3 Environmental Score 5.3
impact SubScore 3.4 Temporal Score 5.3
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact Low
Integrity Impact Low Availability Impact Low
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 4.6 Attack Range Local
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

An issue was discovered in Xen through 4.14.x allowing x86 PV guest OS users to gain guest OS privileges by modifying kernel memory contents, because invalidation of TLB entries is mishandled during use of an INVLPG-like attack technique.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27674

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-787 Out-of-bounds Write (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 17
Os 1
Os 3
Os 159

Sources (Detail)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
Source Url
DEBIAN https://www.debian.org/security/2020/dsa-4804
GENTOO https://security.gentoo.org/glsa/202011-06
MISC https://xenbits.xen.org/xsa/advisory-286.html
MLIST http://www.openwall.com/lists/oss-security/2021/01/19/5

Alert History

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Date Informations
2023-11-07 21:36:30
  • Multiple Updates
2023-08-02 01:53:56
  • Multiple Updates
2022-04-26 21:23:38
  • Multiple Updates
2021-09-02 01:39:45
  • Multiple Updates
2021-08-05 01:38:30
  • Multiple Updates
2021-07-21 17:23:18
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2021-05-05 01:39:50
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2021-05-04 13:52:18
  • Multiple Updates
2021-04-22 03:03:48
  • Multiple Updates
2021-03-27 01:34:22
  • Multiple Updates
2021-02-05 01:31:43
  • Multiple Updates
2021-01-20 00:22:52
  • Multiple Updates
2020-12-05 17:22:55
  • Multiple Updates
2020-11-20 09:22:51
  • Multiple Updates
2020-11-12 09:22:55
  • Multiple Updates
2020-11-11 12:29:43
  • Multiple Updates
2020-11-10 05:23:01
  • Multiple Updates
2020-11-03 21:23:36
  • Multiple Updates
2020-10-23 17:23:03
  • Multiple Updates
2020-10-23 05:23:03
  • First insertion