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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.

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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-6754-2: libnghttp2-14, nghttp2-client, nghttp2, nghttp2-server, nghttp2-proxy, libnghttp2-dev, libnghttp2-doc
  • USN-4099-1: libnginx-mod-mail, libnginx-mod-http-cache-purge, libnginx-mod-http-perl, libnginx-mod-http-ndk, libnginx-mod-http-fancyindex, libnginx-mod-http-echo, nginx-full, nginx-extras, libnginx-mod-http-geoip, nginx-common, nginx-doc, libnginx-mod-rtmp, libnginx-mod-http-xslt-filter, libnginx-mod-nchan, libnginx-mod-http-auth-pam, libnginx-mod-http-lua, libnginx-mod-http-headers-more-filter, nginx-core, libnginx-mod-http-upstream-fair, nginx-light, libnginx-mod-http-dav-ext, libnginx-mod-http-subs-filter, nginx, libnginx-mod-stream, libnginx-mod-http-image-filter, libnginx-mod-http-uploadprogress
  • USN-6427-1: dotnet-sdk-7.0, dotnet6, dotnet-targeting-pack-7.0, dotnet-sdk-7.0-source-built-artifacts, aspnetcore-runtime-7.0, dotnet-sdk-6.0, aspnetcore-targeting-pack-7.0, dotnet-templates-6.0, netstandard-targeting-pack-2.1, dotnet-hostfxr-6.0, dotnet-apphost-pack-7.0, dotnet-apphost-pack-6.0, dotnet-targeting-pack-6.0, dotnet7, aspnetcore-targeting-pack-6.0, dotnet-runtime-7.0, dotnet-sdk-6.0-source-built-artifacts, netstandard-targeting-pack-2.1-7.0, dotnet-host-7.0, dotnet-runtime-6.0, dotnet-templates-7.0, dotnet-host, dotnet-hostfxr-7.0, aspnetcore-runtime-6.0
  • USN-6427-2: netstandard-targeting-pack-2.1-8.0, dotnet-targeting-pack-8.0, dotnet-sdk-8.0-source-built-artifacts, dotnet-sdk-8.0, aspnetcore-runtime-8.0, dotnet-apphost-pack-8.0, dotnet8, dotnet-templates-8.0, dotnet-hostfxr-8.0, aspnetcore-targeting-pack-8.0, dotnet-host-8.0, dotnet-runtime-8.0
  • USN-6438-1: dotnet-sdk-7.0, dotnet6, dotnet-targeting-pack-7.0, dotnet-sdk-7.0-source-built-artifacts, aspnetcore-runtime-7.0, dotnet-sdk-6.0, aspnetcore-targeting-pack-7.0, dotnet-templates-6.0, netstandard-targeting-pack-2.1, dotnet-hostfxr-6.0, dotnet-apphost-pack-7.0, dotnet-apphost-pack-6.0, dotnet-targeting-pack-6.0, dotnet7, aspnetcore-targeting-pack-6.0, dotnet-runtime-7.0, dotnet-sdk-6.0-source-built-artifacts, netstandard-targeting-pack-2.1-7.0, dotnet-host-7.0, dotnet-runtime-6.0, dotnet-templates-7.0, dotnet-host, dotnet-hostfxr-7.0, aspnetcore-runtime-6.0
  • USN-6505-1: libnghttp2-14, nghttp2-client, nghttp2, nghttp2-server, nghttp2-proxy, libnghttp2-dev, libnghttp2-doc
  • USN-6574-1: golang-1.20-src, golang-1.20-go, golang-1.21-src, golang-1.21-doc, golang-1.21, golang-1.20-doc, golang-1.20, golang-1.21-go
  • USN-6994-1: netty, libnetty-java
  • USN-7067-1: haproxy-doc, vim-haproxy, haproxy

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Further reading