CVE-2023-27539
medium
CVSS v3
—
CVSS v4 NEW
—
VIR risk
5.5
Description
RHSA-2023:3082: pcs security and bug fix update (Moderate)
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
AlmaLinux Fixed 1 release
| Version | Status | Fixed in |
|---|---|---|
| 8 | Fixed | pcs-snmp-0.10.15-4.el8_8.1.alma.x86_64.rpm |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 2.2.6.4-1 |
| sid | Fixed | 2.2.6.4-1 |
| forky | Fixed | 2.2.6.4-1 |
| bullseye | Fixed | 2.1.4-3+deb11u1 |
| bookworm | Fixed | 2.2.6.4-1 |
Red Hat Fixed 2 releases
| Version | Status | Fixed in |
|---|---|---|
| 9 | Fixed | — |
| 8 | Fixed | — |
Rocky Linux Fixed 2 releases
| Version | Status | Fixed in |
|---|---|---|
| 9 | Fixed | — |
| 8 | Fixed | — |
References
- https://discuss.rubyonrails.org/t/cve-2023-27539-possible-denial-of-service-vulnerability-in-racks-header-parsing/82466
- https://access.redhat.com/errata/RHSA-2023:2652
- https://errata.rockylinux.org/RLSA-2023:6818
- https://errata.rockylinux.org/RLSA-2023:3082
- https://www.suse.com/security/cve/CVE-2023-27539.html
- https://errata.rockylinux.org/RLSA-2023:2652
- https://nvd.nist.gov/vuln/detail/CVE-2023-27539
- https://github.com/rack/rack/commit/231ef369ad0b542575fb36c74fcfcfabcf6c530c
- https://github.com/rack/rack/commit/ee7919ea04303717858be1c3f16b406adc6d8cff
- https://github.com/rack/rack
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rack/CVE-2023-27539.yml
- https://lists.debian.org/debian-lts-announce/2023/04/msg00017.html
- https://security.netapp.com/advisory/ntap-20231208-0016
- https://www.debian.org/security/2023/dsa-5530
- https://security-tracker.debian.org/tracker/CVE-2023-27539
- https://access.redhat.com/errata/RHSA-2023:3082
- https://bugzilla.redhat.com/2176477
- https://bugzilla.redhat.com/2179649
- https://errata.almalinux.org/8/ALSA-2023-3082.html
- https://bugzilla.redhat.com/2190092
- https://errata.almalinux.org/9/ALSA-2023-2652.html
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.