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Ubuntu 24.04 LTS USN-6754-2 Critical: Nghttp2 Denial Of Service

ubuntu
Calendar Grey May 7, 2024
Dist Ubuntu Esm H88
The Ubuntu Security Notice USN-6754-2 addresses vulnerabilities in nghttp2 across various versions, resolving risks of possible denial of service attacks.
Several security issues were fixed in nghttp2.

Summary

Several security issues were fixed in nghttp2.

Software Description:

- 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...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu nghttp2

Update Instructions

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

Ubuntu 24.04 LTS
   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

  https://ubuntu.com/security/notices/USN-6754-2

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

  CVE-2024-28182

Severity
critical
Lowest
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Critical

Ubuntu Security Notice USN-6754-2

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu nghttp2

Package Information

  https://launchpad.net/ubuntu/+source/nghttp2/1.59.0-1ubuntu0.1

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