Advisory Published

USN-6905-1: Rack vulnerabilities

First published: Tue Jul 23 2024(Updated: )

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)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/ruby-rack<2.1.4-5ubuntu1+esm4
2.1.4-5ubuntu1+esm4
Ubuntu Ubuntu=22.04
All of
ubuntu/ruby-rack<2.0.7-2ubuntu0.1+esm4
2.0.7-2ubuntu0.1+esm4
Ubuntu Ubuntu=20.04
All of
ubuntu/ruby-rack<1.6.4-4ubuntu0.2+esm5
1.6.4-4ubuntu0.2+esm5
Ubuntu Ubuntu=18.04
All of
ubuntu/ruby-rack<1.6.4-3ubuntu0.2+esm5
1.6.4-3ubuntu0.2+esm5
Ubuntu Ubuntu=16.04
All of
ubuntu/ruby-rack<1.5.2-3+deb8u3ubuntu1~esm7
1.5.2-3+deb8u3ubuntu1~esm7
Ubuntu Ubuntu=14.04

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Child vulnerabilities

(Contains the following vulnerabilities)

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