CVE-2023-38171
published 2023-10-10CVE-2023-38171: Microsoft QUIC Denial of Service Vulnerability Microsoft QUIC Denial of Service Vulnerability
high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
69.49%
99.3th percentile
Microsoft QUIC Denial of Service Vulnerability
Microsoft QUIC Denial of Service Vulnerability
Affected
20 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | microsoft_visual_studio_2022_version_17.2 | >= 17.2.0 < 17.2.21 | 17.2.21 |
| microsoft | microsoft_visual_studio_2022_version_17.4 | >= 17.4.0 < 17.4.13 | 17.4.13 |
| microsoft | microsoft_visual_studio_2022_version_17.6 | >= 17.6.0 < 17.6.9 | 17.6.9 |
| microsoft | microsoft_visual_studio_2022_version_17.7 | >= 17.7.0 < 17.7.6 | 17.7.6 |
| microsoft | net_7.0 | >= 7.0.0 < 7.0.13 | 7.0.13 |
| microsoft | powershell_7.3 | >= 7.3.0 < 7.3.9 | 7.3.9 |
| microsoft | windows_11_version_21h2 | >= 10.0.0 < 10.0.22000.2538 | 10.0.22000.2538 |
| microsoft | windows_11_version_22h2 | >= 10.0.22621.0 < 10.0.22621.2428 | 10.0.22621.2428 |
| microsoft | windows_server_2022 | >= 10.0.20348.0 < 10.0.20348.2031 | 10.0.20348.2031 |
| msrc | microsoft_visual_studio_2022_version_17.2 | — | — |
| msrc | microsoft_visual_studio_2022_version_17.4 | — | — |
| msrc | microsoft_visual_studio_2022_version_17.6 | — | — |
| msrc | microsoft_visual_studio_2022_version_17.7 | — | — |
| msrc | net_7.0 | — | — |
| msrc | powershell_7.3 | — | — |
| msrc | windows_11_version_21h2_for_arm64-based_systems | — | — |
| msrc | windows_11_version_21h2_for_x64-based_systems | — | — |
| msrc | windows_11_version_22h2_for_arm64-based_systems | — | — |
| msrc | windows_11_version_22h2_for_x64-based_systems | — | — |
| msrc | windows_server_2022 | — | — |
Detection & IOCsextracted from sources · hover to see the quote
- →The vulnerability is a NULL pointer dereference in MsQuic.dll (Windows only), affecting the QUIC protocol stack in .NET and Microsoft QUIC. Detection should focus on unexpected crashes or null dereference exceptions originating from MsQuic.dll. ↗
- →This issue exclusively affects Windows systems; Linux-based systems running dotnet are not affected and do not require detection effort. ↗
- →Microsoft rates exploitation as 'More Likely' for the latest software release, indicating active monitoring of QUIC traffic and MsQuic.dll crash telemetry is warranted. ↗
- ·The vulnerability is scoped exclusively to Windows; Red Hat Enterprise Linux packages (dotnet6.0, dotnet7.0, dotnet8.0) on RHEL 8 and RHEL 9 are all listed as Not Affected. ↗
- ·Further technical details are available in the GitHub Security Advisory for msquic, which may contain additional operational context not present in the sources provided. ↗
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
cvelistv57.5HIGH
vendor_msrc7.5HIGH
vendor_redhat7.5HIGH
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CISA ICS
Siemens ST7 ScadaConnect
cisa_ics·2024-06-13·CVSS 7.5
[HIGH] Siemens ST7 ScadaConnect
ICS Advisory
##
Siemens ST7 ScadaConnect
Release DateJune 13, 2024
Alert CodeICSA-24-165-04
Related topics:
Industrial Control System Vulnerabilities, Industrial Control Systems
As of January 10, 2023, CISA will no longer be updating ICS security advisories for Siemens product vulnerabilities beyond the initial advisory. For the most up-to-date information on vulnerabilities in this advisory, please see Siemens' ProductCERT Security Advisories (CERT Services | Services | Siemens Global).
View CSAF
## 1. EXECUTIVE SUMMARY
- CVSS v3 8.2
- ATTENTION: Exploitable remotely/low attack complexity
- Vendor: Siemens
- Equipment: ST7 ScadaConnect
- Vulnerabilities: Integer Overflow or Wraparound, Double Free, Improper Certificate Validation, Inefficient Regular Ex
Red Hat
dotnet: NULL pointer dereference in MsQuic.dll may lead to denial of service
vendor_redhat·2023-10-10·CVSS 7.5
CVE-2023-38171 [HIGH] CWE-476 dotnet: NULL pointer dereference in MsQuic.dll may lead to denial of service
dotnet: NULL pointer dereference in MsQuic.dll may lead to denial of service
Microsoft QUIC Denial of Service Vulnerability
A NULL pointer dereference flaw was found in MsQuic.dll in dotnet, which may lead to a denial of service.
Statement: This issue only affects Windows systems. Therefore, Red Hat Enterprise Linux is not affected by this vulnerability.
Package: dotnet6.0 (Red Hat Enterprise Linux 8) - Not affected
Package: dotnet7.0 (Red Hat Enterprise Linux 8) - Not affected
Package: dotnet6.0 (Red Hat Enterprise Linux 9) - Not affected
Package: dotnet7.0 (Red Hat Enterprise Linux 9) - Not affected
Package: dotnet8.0 (Red Hat Enterprise Linux 9) - Not affected
Microsoft
Microsoft QUIC Denial of Service Vulnerability
vendor_msrc·2023-10-10·CVSS 7.5
CVE-2023-38171 [HIGH] CWE-476 Microsoft QUIC Denial of Service Vulnerability
Microsoft QUIC Denial of Service Vulnerability
FAQ: Where can I find more information?
Please see the GitHub Advisory relating to this vulnerability here: https://github.com/microsoft/msquic/security/advisories/GHSA-xh5m-8qqp-c5x7#event-111621
Microsoft QUIC: Microsoft QUIC
Microsoft: Microsoft
Customer Action Required: Yes
Impact: Denial of Service
Exploit Status: Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation More Likely;DOS:N/A
Remediation: Release Notes
Reference: https://my.visualstudio.com/Downloads?q=Visual Studio 2022 version 17.2
Reference: https://docs.microsoft.com/en-us/visualstudio/releases/2022/release-notes
Reference: https://my.visualstudio.com/Downloads?q=Visual Studio 2022 version 17.4
Reference: https://learn.microsoft.com/en-us/visual
CVEList
Microsoft QUIC Denial of Service Vulnerability
cvelistv5·2023-10-10·CVSS 7.5
CVE-2023-38171 [HIGH] CWE-476 Microsoft QUIC Denial of Service Vulnerability
Microsoft QUIC Denial of Service Vulnerability
Microsoft QUIC Denial of Service Vulnerability
OSV
Remote Denial of Service Vulnerability in Microsoft.Native.Quic.MsQuic.Schannel
osv·2023-10-10
CVE-2023-38171 [HIGH] Remote Denial of Service Vulnerability in Microsoft.Native.Quic.MsQuic.Schannel
Remote Denial of Service Vulnerability in Microsoft.Native.Quic.MsQuic.Schannel
### Impact
The MsQuic server application or process will crash, resulting in a denial of service.
### Patches
The following patch was made:
- Don't Allow Version Negotiation Packets for Server Connections - https://github.com/microsoft/msquic/commit/3226cff07d22662f16fc98d605656860e64cd343
### Workarounds
Beyond upgrading to the patched versions, there is no other workaround. You must upgrade or disable MsQuic functionality.
GHSA
Remote Denial of Service Vulnerability in Microsoft.Native.Quic.MsQuic.Schannel
ghsa·2023-10-10
CVE-2023-38171 [HIGH] CWE-400 Remote Denial of Service Vulnerability in Microsoft.Native.Quic.MsQuic.Schannel
Remote Denial of Service Vulnerability in Microsoft.Native.Quic.MsQuic.Schannel
### Impact
The MsQuic server application or process will crash, resulting in a denial of service.
### Patches
The following patch was made:
- Don't Allow Version Negotiation Packets for Server Connections - https://github.com/microsoft/msquic/commit/3226cff07d22662f16fc98d605656860e64cd343
### Workarounds
Beyond upgrading to the patched versions, there is no other workaround. You must upgrade or disable MsQuic functionality.
No detection rules found.
No public exploits indexed.
Trendmicro
The October 2023 Security Update Review
blogs_trendmicro·2023-10-10
The October 2023 Security Update Review
# The October 2023 Security Update Review
Get the October 2023 security update and review.
By: Dustin Childs
2023/10/10
Read time: ( words)
Save to Folio
Twenty years ago this month, Microsoft introduced the concept of “Patch Tuesday” – although the marketing folks wanted it called “Update Tuesday” (they didn’t like the word “patch”). Over the years, more companies joined the Patch Tuesday bandwagon. Here we are 20 years later, still talking about the latest security releases from Adobe and Microsoft. Pop some champagne to celebrate and join us as we review the details of the latest advisories from Adobe and Microsoft. If you’d rather watch the video recap, you can check it out here.
Adobe Patches for October 2023
For October, Adobe released three bulletins addressing 13 CVEs in Ado
Bleepingcomputer
Microsoft October 2023 Patch Tuesday fixes 3 zero-days, 104 flaws
blogs_bleepingcomputer·2023-10-10·CVSS 5.3
CVE-2023-5346 [MEDIUM] Microsoft October 2023 Patch Tuesday fixes 3 zero-days, 104 flaws
## Microsoft October 2023 Patch Tuesday fixes 3 zero-days, 104 flaws
## Lawrence Abrams
26 Elevation of Privilege Vulnerabilities
3 Security Feature Bypass Vulnerabilities
45 Remote Code Execution Vulnerabilities
12 Information Disclosure Vulnerabilities
17 Denial of Service Vulnerabilities
1 Spoofing Vulnerabilities
The total count of 104 flaws does not include one Chromium vulnerability tracked as CVE-2023-5346, which was fixed by Google on October 3rd and ported to Microsoft Edge.
To learn more about the non-security updates released today, you can review our dedicated articles on the new Windows 11 KB5031354 cumulative update and Windows 10 KB5031356 cumulative update .
## Three actively exploited zero-day vulnerabilities
This month's Patch Tuesday fixes three zero-day vulne
Trendmicro
The October 2023 Security Update Review
blogs_trendmicro·2023-10-10·CVSS 6.5
[MEDIUM] The October 2023 Security Update Review
## The October 2023 Security Update Review
Get the October 2023 security update and review.
By: Dustin Childs Oct 10, 2023 Read time: ( words)
Save to Folio
Twenty years ago this month, Microsoft introduced the concept of “Patch Tuesday” – although the marketing folks wanted it called “Update Tuesday” (they didn’t like the word “patch”). Over the years, more companies joined the Patch Tuesday bandwagon. Here we are 20 years later, still talking about the latest security releases from Adobe and Microsoft. Pop some champagne to celebrate and join us as we review the details of the latest advisories from Adobe and Microsoft. If you’d rather watch the video recap, you can check it out here.
CVE
Title
Severity
CVSS
Public
Exploited
Type
CVE-2023-36563
Microsoft WordPad Information
Trendmicro
The October 2023 Security Update Review
blogs_trendmicro·2023-10-10·CVSS 6.5
[MEDIUM] The October 2023 Security Update Review
## The October 2023 Security Update Review
Get the October 2023 security update and review.
By: Dustin Childs 2023/10/10 Read time: ( words)
Save to Folio
Twenty years ago this month, Microsoft introduced the concept of “Patch Tuesday” – although the marketing folks wanted it called “Update Tuesday” (they didn’t like the word “patch”). Over the years, more companies joined the Patch Tuesday bandwagon. Here we are 20 years later, still talking about the latest security releases from Adobe and Microsoft. Pop some champagne to celebrate and join us as we review the details of the latest advisories from Adobe and Microsoft. If you’d rather watch the video recap, you can check it out here.
CVE
Title
Severity
CVSS
Public
Exploited
Type
CVE-2023-36563
Microsoft WordPad Information Di
2023-10-10
Published