USN-6754-2: nghttp2 vulnerability

Releases

• Ubuntu 24.04 LTS

Packages

• nghttp2 - HTTP/2 C Library and tools

Details

USN-6754-1 fixed vulnerabilities in nghttp2. This update provides the
corresponding update for Ubuntu 24.04 LTS.

Original advisory 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)

Update instructions

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

Ubuntu 24.04

• libnghttp2-14 - 1.59.0-1ubuntu0.1
• nghttp2 - 1.59.0-1ubuntu0.1
• nghttp2-client - 1.59.0-1ubuntu0.1
• nghttp2-proxy - 1.59.0-1ubuntu0.1
• nghttp2-server - 1.59.0-1ubuntu0.1

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

References

• CVE-2024-28182

Related notices

• USN-6754-1: nghttp2-server, nghttp2-client, libnghttp2-14, libnghttp2-doc, nghttp2, libnghttp2-dev, nghttp2-proxy