RHSA-2023:0078 - Security Advisory

Topic

An update for .NET 6.0 is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. 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 6.0.113 and .NET Runtime 6.0.13.

The following packages have been upgraded to a later upstream version: rh-dotnet60-dotnet (6.0.113). (BZ#2154455)

Security Fix(es):

• dotnet: Parsing an empty HTTP response as a JSON.NET JObject causes a stack overflow and crashes a process (CVE-2023-21538)

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

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• dotNET on RHEL (for RHEL Server) 1 x86_64
• dotNET on RHEL (for RHEL Workstation) 1 x86_64
• dotNET on RHEL (for RHEL Compute Node) 1 x86_64

Fixes

• BZ - 2158342 - CVE-2023-21538 dotnet: Parsing an empty HTTP response as a JSON.NET JObject causes a stack overflow and crashes a process

CVEs

• CVE-2023-21538

References

• https://access.redhat.com/security/updates/classification/#moderate