CVE-2020-11076 Details

CVE-2020-11076

Published: 2020-05-22
Last Modified: 2020-05-27
CVE Author: NIST National Vulnerability Database
CVE Assigner: cve@mitre.org
Summary

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.

Analysis
Common Vulnerability Score System v2.0
Severity Medium
Base Score 5/10
Exploit Score 10/10
Access Vector Network
Access Complexity Low
Authentication None
Impact Score 2.9/10
Confidentiality Impact None
Availability Impact None
Integrity Impact Partial
Vector String AV:N/AC:L/Au:N/C:N/I:P/A:N
Common Vulnerability Score System v3.1
Severity High
Base Score 7.5/10
Exploit Score 3.9/10
Access Vector Network
Access Complexity Low
Privileges Required None
Impact Score 3.6/10
Confidentiality Impact None
Availability Impact None
Integrity Impact High
Scope Unchanged
User Interaction None
Vector String CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Products Reported
CPE Vulnerable Start Excluding
cpe:2.3:a:puma:puma:*:*:*:*:*:ruby:*:* Yes 3.0.0 3.12.6
cpe:2.3:a:puma:puma:*:*:*:*:*:ruby:*:* Yes 4.0.0 4.3.5
References

https://github.com/puma/puma/blob/master/History.md#434435-and-31253126--2020-05-22
https://github.com/puma/puma/commit/f24d5521295a2152c286abb0a45a1e1e2bd275bd
https://github.com/puma/puma/security/advisories/GHSA-x7jg-6pwg-fx5h

CVE ID
CVE-2020-11076
Published
2020-05-22
Modified
2020-05-27
CVSSv2.0
Medium
CVSSv3.1
High
PCI Compliance
Fail
US-CERT Alert
No
CWE
CWE-444

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