Summary
Impact: Denial of Service. Microsoft rating: Important. Not known to be exploited, publicly disclosed before the fix — Exploitation Less Likely. Customer action: Required.
Details
How could an attacker exploit this vulnerability?
This vulnerability could be exploited if http requests to .NET 8 RC 1 running on IIS InProcess hosting model are cancelled. Threads counts would increase and an OutOfMemoryException is possible.
According to the CVSS metric, successful exploitation of this vulnerability could lead to a total loss of availability (A:H). What does that mean for this vulnerability?
If an attacker was able to successfully exploit the vulnerability the attack might result in a total loss of availability.
Security updates
8.0.0 — https://github.com/dotnet/announcements/issues/52043
17.2.22 — https://docs.microsoft.com/en-us/visualstudio/releases/2022/release-notes
17.4.14 — https://learn.microsoft.com/en-us/visualstudio/releases/2022/release-notes
8.0.0 — https://github.com/dotnet/announcements/issues/286
Vulnerabilities 1
-
High 8.2
ASP.NET Core Denial of Service Vulnerability
ASP.NET Core Denial of Service Vulnerability
Revision history
-
#2
Corrected Article links in the Security Updates table. This is an informational change only.
-
#1
Information published.
References
-
CVE-2023-36038 ASP.NET Core Denial of Service Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36038
-
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
-
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
-
Common Vulnerability Scoring System
https://www.first.org/cvss