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Ubuntu 22.04 LTS USN-6905-1 Moderate: Rack Denial Of Service

ubuntu
Calendar Grey July 23, 2024
Dist Ubuntu Esm H88
Framework patches resolve security issues affecting resource allocation and service interruption across various releases of Ubuntu.

Rack could be made to consume resources and cause long delays if it processed certain input.

Summary

Rack could be made to consume resources and cause long delays if it

processed certain input.

Software Description:

- ruby-rack: modular Ruby webserver interface

Details:

It was discovered that Rack incorrectly handled certain regular

expressions. A remote attacker could possibly use this issue to cause

Rack to consume resources, leading to a denial of service.

(CVE-2023-27539)

It was discovered that Rack incorrectly handled Multipart MIME parsing.

A remote attacker could possibly use this issue to cause Rack to consume

resources, leading to a denial of service. This issue only affected

Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2023-27530)

Topics%20covered

Topics Covered

security advisory denial of service security issue update instructions ubuntu resource exhaustion ruby rack

Update Instructions

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

Ubuntu 22.04 LTS
   ruby-rack                       2.1.4-5ubuntu1+esm4
                                   Available with Ubuntu Pro

Ubuntu 20.04 LTS
   ruby-rack                       2.0.7-2ubuntu0.1+esm4
                                   Available with Ubuntu Pro

Ubuntu 18.04 LTS
   ruby-rack                       1.6.4-4ubuntu0.2+esm5
                                   Available with Ubuntu Pro

Ubuntu 16.04 LTS
   ruby-rack                       1.6.4-3ubuntu0.2+esm5
                                   Available with Ubuntu Pro

Ubuntu 14.04 LTS
   ruby-rack                       1.5.2-3+deb8u3ubuntu1~esm7
                                   Available with Ubuntu Pro

After a standard system update you need to restart any applications using
Rack to make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-6905-1

CVE-2023-27530, CVE-2023-27539

Severity
important
Lowest
Low
Medium
High
Critical

==========================================================================

Topics%20covered

Topics Covered

security advisory denial of service security issue update instructions ubuntu resource exhaustion ruby rack

Package Information

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