CVE-2020-11077
published 2020-05-22CVE-2020-11077: 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…
PriorityP343high7.5CVSS 3.1
AVNACLPRNUINSUCNIHAN
EPSS
2.81%
84.9th percentile
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.
Affected
15 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | puma | < puma 4.3.6-1 (bookworm) | puma 4.3.6-1 (bookworm) |
| fedoraproject | fedora | — | — |
| opensuse | leap | — | — |
| opensuse | leap | — | — |
| puma | puma | >= 0 < 4.3.6-1 | 4.3.6-1 |
| puma | puma | >= 0 < 4.3.6-1 | 4.3.6-1 |
| puma | puma | >= 0 < 4.3.6-1 | 4.3.6-1 |
| puma | puma | >= 0 < 4.3.6-1 | 4.3.6-1 |
| puma | puma | >= 0 < 3.12.6 | 3.12.6 |
| puma | puma | >= 0 < 3.12.4-1ubuntu2+esm1 | 3.12.4-1ubuntu2+esm1 |
| puma | puma | >= 0 < 5.5.2-2ubuntu2+esm1 | 5.5.2-2ubuntu2+esm1 |
| puma | puma | >= 3.0.0 < 3.12.6 | 3.12.6 |
| puma | puma | >= 4.0.0 < 4.3.5 | 4.3.5 |
| puma | puma | >= 4.0.0 < 4.3.5 | 4.3.5 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:P/A:N
osv7.5HIGH
vendor_debian7.5HIGH
vendor_redhat7.5HIGH
vendor_ubuntu7.5HIGH
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OSV
puma vulnerabilities
osv·2024-03-07·CVSS 7.5
CVE-2020-11076 [HIGH] puma vulnerabilities
puma vulnerabilities
ZeddYu Lu discovered that Puma incorrectly handled parsing certain headers.
A remote attacker could possibly use this issue to perform an HTTP Request
Smuggling attack. This issue only affected Ubuntu 20.04 LTS.
(CVE-2020-11076)
It was discovered that Puma incorrectly handled parsing certain headers.
A remote attacker could possibly use this issue to perform an HTTP Request
Smuggling attack. This issue only affected Ubuntu 20.04 LTS.
(CVE-2020-11077)
Jean Boussier discovered that Puma might not always release resources
properly after handling HTTP requests. A remote attacker could possibly
use this issue to read sensitive information. (CVE-2022-23634)
It was discovered that Puma incorrectly handled certain malformed headers.
A remote attacker could use this issue t
OSV
CVE-2020-11077: In Puma (RubyGem) before 4
osv·2020-05-22·CVSS 7.5
CVE-2020-11077 [HIGH] CVE-2020-11077: In Puma (RubyGem) before 4
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.
GHSA
HTTP Smuggling via Transfer-Encoding Header in Puma
ghsa·2020-05-22
CVE-2020-11077 [MEDIUM] CWE-444 HTTP Smuggling via Transfer-Encoding Header in Puma
HTTP Smuggling via Transfer-Encoding Header in Puma
### Impact
This is a similar but different vulnerability to the one patched in 3.12.5 and 4.3.4.
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.
### Patches
The problem has been fixed in Puma 3.12
OSV
HTTP Smuggling via Transfer-Encoding Header in Puma
osv·2020-05-22
CVE-2020-11077 [MEDIUM] HTTP Smuggling via Transfer-Encoding Header in Puma
HTTP Smuggling via Transfer-Encoding Header in Puma
### Impact
This is a similar but different vulnerability to the one patched in 3.12.5 and 4.3.4.
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.
### Patches
The problem has been fixed in Puma 3.12
Ubuntu
Puma vulnerabilities
vendor_ubuntu·2024-03-07·CVSS 7.5
CVE-2024-21647 [HIGH] Puma vulnerabilities
Title: Puma vulnerabilities
Summary: Several security issues were fixed in Puma.
ZeddYu Lu discovered that Puma incorrectly handled parsing certain headers.
A remote attacker could possibly use this issue to perform an HTTP Request
Smuggling attack. This issue only affected Ubuntu 20.04 LTS.
(CVE-2020-11076)
It was discovered that Puma incorrectly handled parsing certain headers.
A remote attacker could possibly use this issue to perform an HTTP Request
Smuggling attack. This issue only affected Ubuntu 20.04 LTS.
(CVE-2020-11077)
Jean Boussier discovered that Puma might not always release resources
properly after handling HTTP requests. A remote attacker could possibly
use this issue to read sensitive information. (CVE-2022-23634)
It was discovered that Puma incorrectly handled certai
Red Hat
rubygem-puma: HTTP Smuggling through a proxy via Transfer-Encoding Header
vendor_redhat·2020-05-21·CVSS 7.5
CVE-2020-11077 [HIGH] CWE-444 rubygem-puma: HTTP Smuggling through a proxy via Transfer-Encoding Header
rubygem-puma: HTTP Smuggling through a proxy via Transfer-Encoding Header
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
Debian
CVE-2020-11077: puma - In Puma (RubyGem) before 4.3.5 and 3.12.6, a client could smuggle a request thro...
vendor_debian·2020·CVSS 7.5
CVE-2020-11077 [HIGH] CVE-2020-11077: puma - In Puma (RubyGem) before 4.3.5 and 3.12.6, a client could smuggle a request thro...
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.
Scope: local
bookworm: resolved (fixe
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2020-11077 rubygem-puma: HTTP Smuggling through a proxy via Transfer-Encoding Header
bugzilla·2020-06-01·CVSS 7.5
CVE-2020-11077 [HIGH] CVE-2020-11077 rubygem-puma: HTTP Smuggling through a proxy via Transfer-Encoding Header
CVE-2020-11077 rubygem-puma: HTTP Smuggling through a proxy via Transfer-Encoding Header
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 p
Bugzilla
CVE-2020-11077 rubygem-puma: HTTP Smuggling through a proxy via Transfer-Encoding Header [fedora-all]
bugzilla·2020-06-01·CVSS 6.8
CVE-2020-11077 [MEDIUM] CVE-2020-11077 rubygem-puma: HTTP Smuggling through a proxy via Transfer-Encoding Header [fedora-all]
CVE-2020-11077 rubygem-puma: HTTP Smuggling through a proxy via Transfer-Encoding Header [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects mul
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00034.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-07/msg00038.htmlhttps://github.com/puma/puma/blob/master/History.md#434435-and-31253126--2020-05-22https://github.com/puma/puma/security/advisories/GHSA-w64w-qqph-5gxmhttps://lists.debian.org/debian-lts-announce/2020/10/msg00009.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SKIY5H67GJIGJL6SMFWFLUQQQR3EMVPR/http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00034.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-07/msg00038.htmlhttps://github.com/puma/puma/blob/master/History.md#434435-and-31253126--2020-05-22https://github.com/puma/puma/security/advisories/GHSA-w64w-qqph-5gxmhttps://lists.debian.org/debian-lts-announce/2020/10/msg00009.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SKIY5H67GJIGJL6SMFWFLUQQQR3EMVPR/
2020-05-22
Published