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USN-6754-1: nghttp2 vulnerabilities

25 April 2024

Several security issues were fixed in nghttp2.

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Releases

Packages

  • nghttp2 - HTTP/2 C Library and tools

Details

It was discovered that nghttp2 incorrectly handled the HTTP/2
implementation. A remote attacker could possibly use this issue to cause
nghttp2 to consume resources, leading to a denial of service. This issue
only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2019-9511,
CVE-2019-9513)

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. This issue only affected Ubuntu
16.04 LTS and Ubuntu 18.04 LTS. (CVE-2023-44487)

It was discovered that nghttp2 could be made to process an unlimited number
of HTTP/2 CONTINUATION frames. A remote attacker could possibly use this
issue to cause nghttp2 to consume resources, leading to a denial of
service. (CVE-2024-28182)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 23.10
Ubuntu 22.04
Ubuntu 20.04
Ubuntu 18.04
Ubuntu 16.04

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

References

Related notices

  • USN-4099-1: libnginx-mod-rtmp, libnginx-mod-http-upstream-fair, libnginx-mod-nchan, libnginx-mod-http-ndk, nginx, nginx-extras, libnginx-mod-http-cache-purge, nginx-light, libnginx-mod-http-headers-more-filter, nginx-full, libnginx-mod-mail, libnginx-mod-http-lua, libnginx-mod-http-xslt-filter, libnginx-mod-http-uploadprogress, libnginx-mod-http-fancyindex, libnginx-mod-http-geoip, libnginx-mod-http-subs-filter, libnginx-mod-http-perl, libnginx-mod-http-auth-pam, libnginx-mod-stream, libnginx-mod-http-dav-ext, libnginx-mod-http-image-filter, libnginx-mod-http-echo, nginx-common, nginx-doc, nginx-core
  • USN-6427-1: dotnet-sdk-6.0-source-built-artifacts, aspnetcore-runtime-6.0, dotnet-templates-6.0, aspnetcore-targeting-pack-7.0, dotnet-sdk-6.0, dotnet-host-7.0, netstandard-targeting-pack-2.1, dotnet-apphost-pack-6.0, aspnetcore-targeting-pack-6.0, aspnetcore-runtime-7.0, dotnet-targeting-pack-7.0, dotnet-runtime-7.0, dotnet-templates-7.0, dotnet-hostfxr-7.0, dotnet7, dotnet-host, dotnet-apphost-pack-7.0, dotnet-hostfxr-6.0, dotnet-targeting-pack-6.0, dotnet6, dotnet-sdk-7.0-source-built-artifacts, netstandard-targeting-pack-2.1-7.0, dotnet-runtime-6.0, dotnet-sdk-7.0
  • USN-6427-2: netstandard-targeting-pack-2.1-8.0, dotnet-templates-8.0, dotnet8, aspnetcore-runtime-8.0, dotnet-runtime-8.0, aspnetcore-targeting-pack-8.0, dotnet-apphost-pack-8.0, dotnet-targeting-pack-8.0, dotnet-sdk-8.0, dotnet-hostfxr-8.0, dotnet-host-8.0, dotnet-sdk-8.0-source-built-artifacts
  • USN-6438-1: dotnet-sdk-6.0-source-built-artifacts, aspnetcore-runtime-6.0, dotnet-templates-6.0, aspnetcore-targeting-pack-7.0, dotnet-sdk-6.0, dotnet-host-7.0, netstandard-targeting-pack-2.1, dotnet-apphost-pack-6.0, aspnetcore-targeting-pack-6.0, aspnetcore-runtime-7.0, dotnet-targeting-pack-7.0, dotnet-runtime-7.0, dotnet-templates-7.0, dotnet-hostfxr-7.0, dotnet7, dotnet-host, dotnet-apphost-pack-7.0, dotnet-hostfxr-6.0, dotnet-targeting-pack-6.0, dotnet6, dotnet-sdk-7.0-source-built-artifacts, netstandard-targeting-pack-2.1-7.0, dotnet-runtime-6.0, dotnet-sdk-7.0
  • USN-6505-1: nghttp2-server, libnghttp2-dev, nghttp2, libnghttp2-doc, libnghttp2-14, nghttp2-client, nghttp2-proxy
  • USN-6574-1: golang-1.21-doc, golang-1.21, golang-1.20-go, golang-1.20-src, golang-1.21-go, golang-1.20-doc, golang-1.20, golang-1.21-src

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