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Ubuntu Security Notice USN-6682-1

Ubuntu Security Notice 6682-1 - 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. 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.

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Ubuntu Security Notice USN-6682-1
March 07, 2024

puma vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 22.04 LTS (Available with Ubuntu Pro)
  • Ubuntu 20.04 LTS (Available with Ubuntu Pro)

Summary:

Several security issues were fixed in Puma.

Software Description:

  • puma: threaded HTTP 1.1 server for Ruby/Rack applications

Details:

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 to perform an HTTP Request Smuggling
attack. (CVE-2022-24790)

Ben Kallus discovered that Puma incorrectly handled parsing certain headers.
A remote attacker could use this issue to perform an HTTP Request Smuggling
attack. (CVE-2023-40175)

Bartek Nowotarski discovered that Puma incorrectly handled parsing certain
encoded content. A remote attacker could possibly use this to cause a
denial of service. (CVE-2024-21647)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 22.04 LTS (Available with Ubuntu Pro):
puma 5.5.2-2ubuntu2+esm1

Ubuntu 20.04 LTS (Available with Ubuntu Pro):
puma 3.12.4-1ubuntu2+esm1

In general, a standard system update will make all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-6682-1
CVE-2020-11076, CVE-2020-11077, CVE-2022-23634, CVE-2022-24790,
CVE-2023-40175, CVE-2024-21647

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