CVE-2020-11076
unknown
CVSS v3
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CVSS v4 NEW
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VIR risk
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Description
In Puma (RubyGem) before 4.3.4 and 3.12.5, an attacker could smuggle an HTTP response, by using an invalid transfer-encoding header. The problem has been fixed in Puma 3.12.5 and Puma 4.3.4.
Predictions
Exploit likelihood
30%
Patch ETA
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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
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 4.3.6-1 |
| debian | bullseye | fixed | 4.3.6-1 |
| debian | forky | fixed | 4.3.6-1 |
| debian | sid | fixed | 4.3.6-1 |
| debian | trixie | fixed | 4.3.6-1 |
References
- https://github.com/puma/puma/security/advisories/GHSA-x7jg-6pwg-fx5h
- https://www.suse.com/security/cve/CVE-2020-11076.html
- https://nvd.nist.gov/vuln/detail/CVE-2020-11076
- https://github.com/puma/puma/commit/f24d5521295a2152c286abb0a45a1e1e2bd275bd
- https://github.com/puma/puma
- https://github.com/puma/puma/blob/master/History.md#434435-and-31253126--2020-05-22
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/puma/CVE-2020-11076.yml
- https://lists.debian.org/debian-lts-announce/2020/10/msg00009.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SKIY5H67GJIGJL6SMFWFLUQQQR3EMVPR
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00034.html
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00038.html
- https://security-tracker.debian.org/tracker/CVE-2020-11076
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.