CVE-2023-27539

Publication date 22 March 2023

Last updated 30 May 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.3 · Medium

Score breakdown

There is a denial of service vulnerability in the header parsing component of Rack.

Status

Package Ubuntu Release Status
ruby-rack 25.04 plucky
Not affected
24.10 oracular
Not affected
24.04 LTS noble
Not affected
23.10 mantic
Fixed 2.2.4-3ubuntu0.1
23.04 lunar Ignored end of life, was needs-triage
22.10 kinetic Ignored end of life, was needs-triage
22.04 LTS jammy
Fixed 2.1.4-5ubuntu1.1
20.04 LTS focal
Fixed 2.0.7-2ubuntu0.1+esm4
18.04 LTS bionic
Fixed 1.6.4-4ubuntu0.2+esm5
16.04 LTS xenial
Fixed 1.6.4-3ubuntu0.2+esm5
14.04 LTS trusty
Fixed 1.5.2-3+deb8u3ubuntu1~esm7

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
ruby-rack

Severity score breakdown

Parameter Value
Base score 5.3 · Medium
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality Low
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References

Related Ubuntu Security Notices (USN)

Other references