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.

CVSS v3.0 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

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

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:P/A:N

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

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

Advertisement

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:puma:puma::::::ruby::*
	cpe:2.3:a:puma:puma::::::ruby::*

Configuration 2 (hide)

cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*

Configuration 3 (hide)

cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Information

Published : 2020-05-22 08:15

Updated : 2023-03-02 18:39

NVD link : CVE-2020-11076

Mitre link : CVE-2020-11076

JSON object : View

CWE

CWE-444

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

Advertisement

Products Affected

debian

debian_linux

fedoraproject

fedora

puma

puma

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://github.com/puma/puma/blob/master/History.md#434435-and-31253126--2020-05-22", "name": "https://github.com/puma/puma/blob/master/History.md#434435-and-31253126--2020-05-22", "tags": ["Release Notes"], "refsource": "MISC"}, {"url": "https://github.com/puma/puma/security/advisories/GHSA-x7jg-6pwg-fx5h", "name": "https://github.com/puma/puma/security/advisories/GHSA-x7jg-6pwg-fx5h", "tags": ["Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "https://github.com/puma/puma/commit/f24d5521295a2152c286abb0a45a1e1e2bd275bd", "name": "https://github.com/puma/puma/commit/f24d5521295a2152c286abb0a45a1e1e2bd275bd", "tags": ["Patch"], "refsource": "MISC"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00034.html", "name": "openSUSE-SU-2020:0990", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "SUSE"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00038.html", "name": "openSUSE-SU-2020:1001", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "SUSE"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SKIY5H67GJIGJL6SMFWFLUQQQR3EMVPR/", "name": "FEDORA-2020-fe354f24e8", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "FEDORA"}, {"url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00009.html", "name": "[debian-lts-announce] 20201007 [SECURITY] [DLA 2398-1] puma security update", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MLIST"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "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."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-444"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2020-11076", "ASSIGNER": "security-advisories@github.com"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "NONE"}, "severity": "MEDIUM", "acInsufInfo": false, "impactScore": 2.9, "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}}, "publishedDate": "2020-05-22T15:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:puma:puma:*:*:*:*:*:ruby:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "4.3.5", "versionStartIncluding": "4.0.0"}, {"cpe23Uri": "cpe:2.3:a:puma:puma:*:*:*:*:*:ruby:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "3.12.6", "versionStartIncluding": "3.0.0"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2023-03-03T02:39Z"}