Is CVE-2022-23634 in the CISA KEV catalog?

No. CVE-2022-23634 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-23634?

CVE-2022-23634 has a CVSS v3 base score of 8.0 (HIGH).

What is the EPSS score for CVE-2022-23634?

CVE-2022-23634 has an EPSS score of 2.09% (79th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-23634?

Upgrade puma on debian 11 to 4.3.8-1+deb11u2 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2022-23634

HIGHEPSS 79th pctl

8.0

CVSS v3

NVD

Description

Puma is a Ruby/Rack web server built for parallelism. Prior to `puma` version `5.6.2`, `puma` may not always call `close` on the response body. Rails, prior to version `7.0.2.2`, depended on the response body being closed in order for its `CurrentAttributes` implementation to work correctly. The combination of these two behaviors (Puma not closing the body + Rails' Executor implementation) causes information leakage. This problem is fixed in Puma versions 5.6.2 and 4.3.11. This problem is fixed in Rails versions 7.02.2, 6.1.4.6, 6.0.4.6, and 5.2.6.2. Upgrading to a patched Rails _or_ Puma version fixes the vulnerability.

CWE-200Information Exposure CWE-404

How to fix

Remediation Available

pumaDebian

Fixed in:4.3.8-1+deb11u2CVE-2022-23634

Fixed in:5.6.4-1CVE-2022-23634

pumaUbuntu

Fixed in:3.12.4-1ubuntu2+esm1USN-6682-1

Fixed in:5.5.2-2ubuntu2+esm1USN-6682-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionRequired

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N

Exploit Intelligence

2.09%probability of exploitation in 30 days

79thpercentile

Elevated risk: more likely to be exploited than 79% of all known CVEs.

References

Patch3

Mitigation1

github.com

Third-Party Advisory5

Other references3

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.