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Ubuntu 23.10 USN-6754-1 Critical: nghttp2 Denial of Service Vulnerabilities

ubuntu
Calendar Grey April 25, 2024
Dist Ubuntu Esm H88
Numerous vulnerability patches for nghttp2 released in Ubuntu Security Notification USN-6754-1 tackling denial of service concerns.
Several security issues were fixed in nghttp2.

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 23.10 - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS (Available with Ubuntu Pro) - Ubuntu 16.04 LTS (Available with Ubuntu Pro) Summary: Several security issues were fixed in nghttp2. Software Description: - 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 pro...

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Topics%20covered

Topics Covered

security advisory denial of service DoS Ubuntu update instructions nghttp2

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 23.10:   libnghttp2-14                   1.55.1-1ubuntu0.2   nghttp2                         1.55.1-1ubuntu0.2   nghttp2-client                  1.55.1-1ubuntu0.2   nghttp2-proxy                   1.55.1-1ubuntu0.2   nghttp2-server                  1.55.1-1ubuntu0.2 Ubuntu 22.04 LTS:   libnghttp2-14                   1.43.0-1ubuntu0.2   nghttp2                         1.43.0-1ubuntu0.2   nghttp2-client                  1.43.0-1ubuntu0.2   nghttp2-proxy                   1.43.0-1ubuntu0.2   nghttp2-server                  1.43.0-1ubuntu0.2 Ubuntu 20.04 LTS:   libnghttp2-14                   1.40.0-1ubuntu0.3   nghttp2                         1.40.0-1ubuntu0.3   nghttp2-client                  1.40.0-1ubuntu0.3   nghttp2-proxy                   1.40.0-1ubuntu0.3   nghttp2-server                  1.40.0-1ubuntu0.3 Ubuntu 18.04 LTS (Available with Ubuntu Pro):   libnghttp2-14                   1.30.0-1ubuntu1+esm2   nghttp2                         1.30.0-1ubuntu1+esm2   nghttp2-client                  1.30.0-1ubuntu1+esm2   nghttp2-proxy                   1.30.0-1ubuntu1+esm2   nghttp2-server                  1.30.0-1ubuntu1+esm2 Ubuntu 16.04 LTS (Available with Ubuntu Pro):   libnghttp2-14                   1.7.1-1ubuntu0.1~esm2   nghttp2                         1.7.1-1ubuntu0.1~esm2   nghttp2-client                  1.7.1-1ubuntu0.1~esm2   nghttp2-proxy                   1.7.1-1ubuntu0.1~esm2   nghttp2-server                  1.7.1-1ubuntu0.1~esm2 In general, a standard system update will make all the necessary changes.

References

  https://ubuntu.com/security/notices/USN-6754-1

  CVE-2019-9511, CVE-2019-9513, CVE-2023-44487, CVE-2024-28182

Severity
critical
Lowest
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Critical

Ubuntu Security Notice USN-6754-1

Topics%20covered

Topics Covered

security advisory denial of service DoS Ubuntu update instructions nghttp2

Package Information

  https://launchpad.net/ubuntu/+source/nghttp2/1.55.1-1ubuntu0.2   https://launchpad.net/ubuntu/+source/nghttp2/1.43.0-1ubuntu0.2   https://launchpad.net/ubuntu/+source/nghttp2/1.40.0-1ubuntu0.3

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