CVE catalog
CVE-2023-27539
ruby-rack: CVE-2023-27539
- Severity
- Medium · CVSS 5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.06% · Oct 25, 2026
There is a denial of service vulnerability in the header parsing component of Rack.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | ruby-rack | sid | 3.2.7-1 | fixed |
| Debian | ruby-rack | forky | 3.2.7-1 | fixed |
| Debian | ruby-rack | trixie | 3.1.20-0+deb13u1 | fixed |
| Debian | ruby-rack | trixie-security | 3.1.20-0+deb13u2 | fixed |
| Debian | ruby-rack | bookworm | 2.2.22-0+deb12u1 | fixed |
| Debian | ruby-rack | bookworm-security | 2.2.22-0+deb12u2 | fixed |
| Suse | rubygem-rack | linux enterprise high availability extension 15 sp1 | 2.0.8-150000.3.18.1 | fixed |
| Suse | rubygem-rack | linux enterprise high availability extension 15 sp2 | 2.0.8-150000.3.18.1 | fixed |
| Suse | rubygem-rack | linux enterprise high availability extension 15 sp3 | 2.0.8-150000.3.18.1 | fixed |
| Suse | rubygem-rack | linux enterprise high availability extension 15 sp4 | 2.0.8-150000.3.18.1 | fixed |
| Opensuse | rubygem-rack | leap 15.4 | 2.0.8-150000.3.18.1 | fixed |
| Opensuse | rubygem-rack | tumbleweed | 3.0.7-1.1 | fixed |
| Suse | rubygem-rack | openstack cloud crowbar 8 | 1.6.13-3.19.1 | fixed |
| Suse | rubygem-rack | openstack cloud crowbar 9 | 1.6.13-3.19.1 | fixed |
| Ubuntu | ruby-rack | pro | 2.1.4-3 | vulnerable |
| Ubuntu | ruby-rack | pro | 2.1.4-4 | vulnerable |
| Ubuntu | ruby-rack | pro | 2.1.4-5 | vulnerable |
| Ubuntu | ruby-rack | pro | 2.1.4-5ubuntu1 | vulnerable |
| Ubuntu | ruby-rack | pro | 2.1.4-5ubuntu1+esm2 | vulnerable |
| Ubuntu | ruby-rack | pro | 2.1.4-5ubuntu1+esm3 | vulnerable |
| Ubuntu | ruby-rack | pro | 2.1.4-5ubuntu1+esm4 | fixed |
| Ubuntu | ruby-rack | 22.04 | 2.1.4-3 | vulnerable |
| Ubuntu | ruby-rack | 22.04 | 2.1.4-4 | vulnerable |
| Ubuntu | ruby-rack | 22.04 | 2.1.4-5 | vulnerable |
| Ubuntu | ruby-rack | 22.04 | 2.1.4-5ubuntu1 | vulnerable |
| Ubuntu | ruby-rack | 22.04 | 2.1.4-5ubuntu1.1 | fixed |
| Opensuse | rubygem-rack-2.2 | tumbleweed | 2.2.6.4-1.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | ruby-rack | source | sid | 2.2.6.4-1 | not yet assigned | Not reported | [1033264] |
| Debian | ruby-rack | source | forky | 2.2.6.4-1 | not yet assigned | Not reported | [1033264] |
| Debian | ruby-rack | source | trixie | 2.2.6.4-1 | not yet assigned | Not reported | [1033264] |
| Debian | ruby-rack | source | bookworm | 2.2.6.4-1 | not yet assigned | Not reported | [1033264] |
| Suse | rubygem-rack | rpm | linux enterprise high availability extension 15 sp1 | 2.0.8-150000.3.18.1 | Not reported | SUSE-SU-2023:1685-1 | Not reported |
| Suse | rubygem-rack | rpm | linux enterprise high availability extension 15 sp2 | 2.0.8-150000.3.18.1 | Not reported | SUSE-SU-2023:1685-1 | Not reported |
| Suse | rubygem-rack | rpm | linux enterprise high availability extension 15 sp3 | 2.0.8-150000.3.18.1 | Not reported | SUSE-SU-2023:1685-1 | Not reported |
| Suse | rubygem-rack | rpm | linux enterprise high availability extension 15 sp4 | 2.0.8-150000.3.18.1 | Not reported | SUSE-SU-2023:1685-1 | Not reported |
| Opensuse | rubygem-rack | rpm | leap 15.4 | 2.0.8-150000.3.18.1 | Not reported | SUSE-SU-2023:1685-1 | Not reported |
| Opensuse | rubygem-rack | rpm | tumbleweed | 3.0.7-1.1 | Not reported | OPENSUSE-SU-2024:12805-1 | Not reported |
| Suse | rubygem-rack | rpm | openstack cloud crowbar 8 | 1.6.13-3.19.1 | Not reported | SUSE-SU-2023:1869-1 | Not reported |
| Suse | rubygem-rack | rpm | openstack cloud crowbar 9 | 1.6.13-3.19.1 | Not reported | SUSE-SU-2023:1869-1 | Not reported |
| Ubuntu | ruby-rack | deb | pro | 2.1.4-5ubuntu1+esm4 | Not reported | UBUNTU-CVE-2023-27539 | Not reported |
| Ubuntu | ruby-rack | deb | 22.04 | 2.1.4-5ubuntu1.1 | Not reported | UBUNTU-CVE-2023-27539 | Not reported |
| Opensuse | rubygem-rack-2.2 | rpm | tumbleweed | 2.2.6.4-1.1 | Not reported | OPENSUSE-SU-2024:12789-1 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
References
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2023_3082.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2023-27539]
- [https://osv.dev/vulnerability/SUSE-SU-2023:1685-1]
- [https://osv.dev/vulnerability/SUSE-SU-2023:1869-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2023-27539]
- [https://osv.dev/vulnerability/openSUSE-SU-2024:12789-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2024:12805-1]
- [https://security-tracker.debian.org/tracker/CVE-2023-27539]
- [https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-27539.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-2101.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]