USN-6505-1: nghttp2 vulnerability

Releases

• Ubuntu 23.10
• Ubuntu 23.04
• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS

Packages

• nghttp2 - HTTP/2 C Library and tools

Details

It was discovered that nghttp2 incorrectly handled request cancellation. A
remote attacker could possibly use this issue to cause nghttp2 to consume
resources, leading to a denial of service.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 23.10

• libnghttp2-14 - 1.55.1-1ubuntu0.1
• nghttp2 - 1.55.1-1ubuntu0.1
• nghttp2-client - 1.55.1-1ubuntu0.1
• nghttp2-proxy - 1.55.1-1ubuntu0.1
• nghttp2-server - 1.55.1-1ubuntu0.1

Ubuntu 23.04

• libnghttp2-14 - 1.52.0-1ubuntu0.1
• nghttp2 - 1.52.0-1ubuntu0.1
• nghttp2-client - 1.52.0-1ubuntu0.1
• nghttp2-proxy - 1.52.0-1ubuntu0.1
• nghttp2-server - 1.52.0-1ubuntu0.1

Ubuntu 22.04

• libnghttp2-14 - 1.43.0-1ubuntu0.1
• nghttp2 - 1.43.0-1ubuntu0.1
• nghttp2-client - 1.43.0-1ubuntu0.1
• nghttp2-proxy - 1.43.0-1ubuntu0.1
• nghttp2-server - 1.43.0-1ubuntu0.1

Ubuntu 20.04

• libnghttp2-14 - 1.40.0-1ubuntu0.2
• nghttp2 - 1.40.0-1ubuntu0.2
• nghttp2-client - 1.40.0-1ubuntu0.2
• nghttp2-proxy - 1.40.0-1ubuntu0.2
• nghttp2-server - 1.40.0-1ubuntu0.2

In general, a standard system update will make all the necessary changes.

References

• CVE-2023-44487

Related notices

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• USN-6427-2: dotnet-apphost-pack-8.0, dotnet-hostfxr-8.0, dotnet-runtime-8.0, dotnet-host-8.0, aspnetcore-runtime-8.0, dotnet8, dotnet-sdk-8.0-source-built-artifacts, netstandard-targeting-pack-2.1-8.0, dotnet-templates-8.0, dotnet-targeting-pack-8.0, aspnetcore-targeting-pack-8.0, dotnet-sdk-8.0
• USN-6438-1: aspnetcore-targeting-pack-7.0, dotnet-host-7.0, dotnet-apphost-pack-7.0, aspnetcore-runtime-6.0, dotnet-targeting-pack-7.0, dotnet7, dotnet-sdk-6.0, dotnet-hostfxr-6.0, dotnet-hostfxr-7.0, dotnet-runtime-7.0, aspnetcore-targeting-pack-6.0, netstandard-targeting-pack-2.1, dotnet-apphost-pack-6.0, dotnet-templates-6.0, dotnet-sdk-7.0-source-built-artifacts, dotnet-sdk-6.0-source-built-artifacts, dotnet-runtime-6.0, dotnet-sdk-7.0, netstandard-targeting-pack-2.1-7.0, aspnetcore-runtime-7.0, dotnet-host, dotnet-templates-7.0, dotnet-targeting-pack-6.0, dotnet6
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