Most recent entries from all

bdu:2020-04071

cnvd-2020-31666

EUVD-2026-40382

fkie_cve-2020-11076

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.

GHSA-x7jg-6pwg-fx5h — HTTP Smuggling via Transfer-Encoding Header in Puma

Affected: RubyGems: puma

### Impact

By using an invalid transfer-encoding header, an attacker could [smuggle an HTTP response.](https://portswigger.net/web-security/request-smuggling)

Originally reported by @ZeddYu, who has our thanks for the detailed report.

### Patches

The problem has been fixed in Puma 3.12.5 and Puma 4.3.4.

### For more information

If you have any questions or comments about this advisory:

* Open an issue in [Puma](https://github.com/puma/puma) * See our [security policy](https://github.com/puma/puma/security/policy)

gsd-2020-11076

OESA-2021-1169 — rubygem-puma security update

Affected: openEuler:20.03-LTS-SP1: rubygem-puma

Security Fix(es): 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.(CVE-2020-11076) In Puma (RubyGem) before 4.3.5 and 3.12.6, a client could smuggle a request through a proxy, causing the proxy to send a response back to another unknown client. If the proxy uses persistent connections and the client adds another request in via HTTP pipelining, the proxy may mistake it as the first request's body. Puma, however, would see it as two requests, and when processing the second request, send back a response that the proxy does not expect. If the proxy has reused the persistent connection to Puma to send another request for a different client, the second response from the first client will be sent to the second client. This is a similar but different vulnerability from CVE-2020-11076. The problem has been fixed in Puma 3.12.6 and Puma 4.3.5.(CVE-2020-11077)

openSUSE-SU-2020:0990-1 — Security update for rubygem-puma

Security update for rubygem-puma

SUSE-SU-2020:1919-1 — Security update for rubygem-puma

Security update for rubygem-puma

UBUNTU-CVE-2020-11076

Affected: Ubuntu:Pro:20.04:LTS: puma

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.