Headline
Red Hat Security Advisory 2024-7869-03
Red Hat Security Advisory 2024-7869-03 - An update for.NET 8.0 is now available for Red Hat Enterprise Linux 9. Issues addressed include code execution and denial of service vulnerabilities.
The following advisory data is extracted from:
https://security.access.redhat.com/data/csaf/v2/advisories/2024/rhsa-2024_7869.json
Red Hat officially shut down their mailing list notifications October 10, 2023. Due to this, Packet Storm has recreated the below data as a reference point to raise awareness. It must be noted that due to an inability to easily track revision updates without crawling Red Hat’s archive, these advisories are single notifications and we strongly suggest that you visit the Red Hat provided links to ensure you have the latest information available if the subject matter listed pertains to your environment.
- Packet Storm Staff
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Red Hat Security Advisory
Synopsis: Important: .NET 8.0 security update
Advisory ID: RHSA-2024:7869-03
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2024:7869
Issue date: 2024-10-09
Revision: 03
CVE Names: CVE-2024-38229
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Summary:
An update for .NET 8.0 is now available for Red Hat Enterprise Linux 9.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description:
.NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation.
New versions of .NET that address a security vulnerability are now available. The updated versions are .NET SDK 8.0.110 and .NET Runtime 8.0.10.
Security Fix(es):
- dotnet: kestrel: closing an HTTP/3 stream can cause a race condition and lead to remote code execution (CVE-2024-38229)
- dotnet: Multiple .NET components susceptible to hash flooding (CVE-2024-43483)
- dotnet: System.IO.Packaging - Multiple DoS vectors in use of SortedList (CVE-2024-43484)
- dotnet: Denial of Service in System.Text.Json (CVE-2024-43485)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.Security Fix(es):
dotnet: System.IO.Packaging - Multiple DoS vectors in use of SortedList (CVE-2024-43484)
dotnet: Multiple .NET components susceptible to hash flooding (CVE-2024-43483)
dotnet: Denial of Service in System.Text.Json (CVE-2024-43485)
dotnet: kestrel: closing an HTTP/3 stream can cause a race condition and lead to remote code execution (CVE-2024-38229)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Solution:
https://access.redhat.com/articles/11258
CVEs:
CVE-2024-38229
References:
https://access.redhat.com/security/updates/classification/#important
https://bugzilla.redhat.com/show_bug.cgi?id=2315729
https://bugzilla.redhat.com/show_bug.cgi?id=2315730
https://bugzilla.redhat.com/show_bug.cgi?id=2315731
https://bugzilla.redhat.com/show_bug.cgi?id=2316161
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# Microsoft Security Advisory CVE-2024-43485 | .NET Denial of Service Vulnerability ## <a name="executive-summary"></a>Executive summary Microsoft is releasing this security advisory to provide information about a vulnerability in System.Text.Json 6.0.x and 8.0.x. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability. In System.Text.Json 6.0.x and 8.0.x, applications which deserialize input to a model with an `[ExtensionData]` property can be vulnerable to an algorithmic complexity attack resulting in Denial of Service. ## Announcement Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/329 ## <a name="mitigation-factors"></a>Mitigation factors JSON models which do not utilize the `[ExtensionData]` feature are not impacted by this vulnerability. ## <a name="affected-software"></a>Affected software * Any .NET 8.0 application running on .NET 8.0.8 or earlier. * Any .NET 6.0 ...
# Microsoft Security Advisory CVE-2024-43484 | .NET Denial of Service Vulnerability ## <a name="executive-summary"></a>Executive summary Microsoft is releasing this security advisory to provide information about a vulnerability in System.IO.Packaging. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability. The System.IO.Packaging library may allow untrusted inputs to influence algorithmically complex operations, leading to denial of service. ## Announcement Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/328 ## <a name="mitigation-factors"></a>Mitigation factors Microsoft has not identified any mitigating factors for this vulnerability. ## <a name="affected-packages"></a>Affected Packages The vulnerability affects any Microsoft .NET Core project if it uses any of affected packages versions listed below ### <a name=".NET 9"></a>.NET 9 Package name | Affected version | ...
# Microsoft Security Advisory CVE-2024-43483 | .NET Denial of Service Vulnerability ## <a name="executive-summary"></a>Executive summary Microsoft is releasing this security advisory to provide information about a vulnerability in System.Security.Cryptography.Cose, System.IO.Packaging, System.Runtime.Caching. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability. System.Security.Cryptography.Cose, System.IO.Packaging, System.Runtime.Caching may be exposed to a hostile input which may lead them to be susceptible to hash flooding attacks resulting in denial of service. ## Announcement Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/327 ## <a name="mitigation-factors"></a>Mitigation factors Microsoft has not identified any mitigating factors for this vulnerability. ## <a name="affected-software"></a>Affected software * Any .NET 8.0 application running on .NET 8.0.8 or e...
# Microsoft Security Advisory CVE-2024-38229 | .NET Remote Code Execution Vulnerability ## <a name="executive-summary"></a>Executive summary Microsoft is releasing this security advisory to provide information about a vulnerability in .NET 8.0 and .NET 9.0. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability. A vulnerability exists in ASP.NET when closing an HTTP/3 stream while application code is writing to the response body, a race condition may lead to use-after-free. Note: HTTP/3 is experimental in .NET 6.0. If you are on .NET 6.0 and using HTTP/3, please upgrade to .NET 8.0.10. .NET 6.0 will not receive a security patch for this vulnerability. ## Announcement Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/326 ## <a name="mitigation-factors"></a>Mitigation factors HTTP/3 support is not enabled by default in ASP.NET Core applications. For more information on how ...