Vulnerability Name:

CVE-2020-0789 (CCN-176832)

Assigned:2019-11-04
Published:2020-03-10
Updated:2020-03-17
Summary:A denial of service vulnerability exists when the Visual Studio Extension Installer Service improperly handles hard links, aka 'Visual Studio Extension Installer Service Denial of Service Vulnerability'.
CVSS v3 Severity:7.1 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H)
6.2 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): High
5.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
4.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:6.6 Medium (CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Complete
Availibility (A): Complete
4.6 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-59
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2020-0789

Source: XF
Type: UNKNOWN
ms-visual-cve20200789-dos(176832)

Source: CCN
Type: Microsoft Security TechCenter - March 2020
Visual Studio Extension Installer Service Denial of Service Vulnerability

Source: MISC
Type: Patch, Vendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0789

Vulnerable Configuration:Configuration 1:
  • cpe:/a:microsoft:visual_studio_2019:*:*:*:*:*:*:*:* (Version >= 16.0 and <= 16.4)

    • Configuration CCN 1:
  • cpe:/a:microsoft:visual_studio_2019:16.0:*:*:*:*:*:*:*
  • OR cpe:/a:microsoft:visual_studio_2019:16.3:*:*:*:*:*:*:*
  • OR cpe:/a:microsoft:visual_studio_2019:16.4:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    microsoft visual studio 2019 *
    microsoft visual studio 2019 16.0
    microsoft visual studio 2019 16.3
    microsoft visual studio 2019 16.4