| Vulnerability Name: | CVE-2021-26423 (CCN-206379) |
| Assigned: | 2021-08-10 |
| Published: | 2021-08-10 |
| Updated: | 2021-08-19 |
| Summary: | .NET Core and Visual Studio Denial of Service Vulnerability |
| CVSS v3 Severity: | 7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)| Exploitability Metrics: | Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None | | Scope: | Scope (S): Unchanged
| | Impact Metrics: | Confidentiality (C): None
Integrity (I): None
Availibility (A): High |
7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)| Exploitability Metrics: | Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None | | Scope: | Scope (S): Unchanged
| | Impact Metrics: | Confidentiality (C): None
Integrity (I): None
Availibility (A): High |
7.5 High (REDHAT CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (REDHAT Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)| Exploitability Metrics: | Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None | | Scope: | Scope (S): Unchanged
| | Impact Metrics: | Confidentiality (C): None
Integrity (I): None
Availibility (A): High |
|
| CVSS v2 Severity: | 5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)| Exploitability Metrics: | Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None | | Impact Metrics: | Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial |
7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)| Exploitability Metrics: | Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
| | Impact Metrics: | Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete |
|
| Vulnerability Type: | CWE-noinfo
CWE-835
|
| Vulnerability Consequences: | Denial of Service |
| References: | Source: MITRE
Type: CNA
CVE-2021-26423
Source: XF
Type: UNKNOWN
ms-dotnet-cve202126423-dos(206379)
Source: CCN
Type: Microsoft Security TechCenter - August 2021
.NET Core Denial of Service Vulnerability
Source: N/A
Type: Patch, Vendor Advisory
N/A
|
| Vulnerable Configuration: | Configuration 1:
cpe:/a:microsoft:.net:*:*:*:*:*:*:*:* (Version >= 5.0 and <= 5.0.8)OR cpe:/a:microsoft:.net_core:*:*:*:*:*:*:*:* (Version >= 2.1 and <= 2.1.28)OR cpe:/a:microsoft:.net_core:*:*:*:*:*:*:*:* (Version >= 3.1 and <= 3.1.17)OR cpe:/a:microsoft:powershell_core:*:*:*:*:*:*:*:* (Version >= 7.0 and < 7.0.7)OR cpe:/a:microsoft:powershell_core:*:*:*:*:*:*:*:* (Version >= 7.1 and < 7.1.4)OR cpe:/a:microsoft:visual_studio_2017:*:*:*:*:*:*:*:* (Version >= 15.0 and <= 15.9)OR cpe:/a:microsoft:visual_studio_2019:8.10:*:*:*:*:macos:*:*OR cpe:/a:microsoft:visual_studio_2019:*:*:*:*:*:*:*:* (Version >= 16.0 and <= 16.10)
Configuration RedHat 1:
cpe:/a:redhat:enterprise_linux:8:*:*:*:*:*:*:*
Configuration RedHat 2:
cpe:/a:redhat:enterprise_linux:8::appstream:*:*:*:*:*
Configuration CCN 1:
cpe:/a:microsoft:.net_core:2.1:-:*:*:*:*:*:*OR cpe:/a:microsoft:.net_core:3.1:-:*:*:*:*:*:*OR cpe:/a:microsoft:.net_core:5.0:-:*:*:*:*:*:*
 Denotes that component is vulnerable |
| Oval Definitions |
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