CVE Vulnerability

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.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://github.com/puma/puma/blob/master/History.md#434435-and-31253126--2020-05-22 Release Notes Third Party Advisory
https://github.com/puma/puma/security/advisories/GHSA-x7jg-6pwg-fx5h Third Party Advisory
https://github.com/puma/puma/commit/f24d5521295a2152c286abb0a45a1e1e2bd275bd Patch Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00034.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00038.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SKIY5H67GJIGJL6SMFWFLUQQQR3EMVPR/
https://lists.debian.org/debian-lts-announce/2020/10/msg00009.html
Configurations

Configuration 1

cpe:2.3:a:puma:puma:*:*:*:*:*:ruby:*:*
cpe:2.3:a:puma:puma:*:*:*:*:*:ruby:*:*
Information

Published : 2020-05-22 03:15

Updated : 2020-10-07 01:15

NVD link : CVE-2020-11076

Mitre link : CVE-2020-11076

Products Affected
No products.
CWE
CWE-444

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')