Vulnerability Monitor

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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.

Published

2020-05-22T15:15:11.363

Last Modified

2024-11-21T04:56:44.090

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: PARTIAL
Availability Impact: NONE

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Secondary
CWE-444
Type: Primary
CWE-444

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	puma	puma	< 3.12.6	Yes
Application	puma	puma	< 4.3.5	Yes
Operating System	fedoraproject	fedora	33	Yes
Operating System	debian	debian_linux	9.0	Yes

References

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00034.html Mailing List, Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00038.html Mailing List, Third Party Advisory ([email protected])
https://github.com/puma/puma/blob/master/History.md#434435-and-31253126--2020-05-22 Release Notes ([email protected])
https://github.com/puma/puma/commit/f24d5521295a2152c286abb0a45a1e1e2bd275bd Patch ([email protected])
https://github.com/puma/puma/security/advisories/GHSA-x7jg-6pwg-fx5h Third Party Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2020/10/msg00009.html Mailing List, Third Party Advisory ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SKIY5H67GJIGJL6SMFWFLUQQQR3EMVPR/ ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00034.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00038.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/puma/puma/blob/master/History.md#434435-and-31253126--2020-05-22 Release Notes (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/puma/puma/commit/f24d5521295a2152c286abb0a45a1e1e2bd275bd Patch (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/puma/puma/security/advisories/GHSA-x7jg-6pwg-fx5h Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2020/10/msg00009.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SKIY5H67GJIGJL6SMFWFLUQQQR3EMVPR/ (af854a3a-2127-422b-91ae-364da2661108)