gsd - gsd-2023-6935

GSD-2023-6935

Vulnerability from gsd - Updated: 2023-12-19 06:01

Details

wolfSSL SP Math All RSA implementation is vulnerable to the Marvin Attack, new variation of a timing Bleichenbacher style attack, when built with the following options to configure: --enable-all CFLAGS="-DWOLFSSL_STATIC_RSA" The define “WOLFSSL_STATIC_RSA” enables static RSA cipher suites, which is not recommended, and has been disabled by default since wolfSSL 3.6.6. Therefore the default build since 3.6.6, even with "--enable-all", is not vulnerable to the Marvin Attack. The vulnerability is specific to static RSA cipher suites, and expected to be padding-independent. The vulnerability allows an attacker to decrypt ciphertexts and forge signatures after probing with a large number of test observations. However the server’s private key is not exposed.

Aliases

CVE-2023-6935

JSON

To clipboard

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      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
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          }
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}

CVE-2023-6935 (GCVE-0-2023-6935)

Vulnerability from cvelistv5 – Published: 2024-02-09 22:25 – Updated: 2024-08-02 08:42

Summary

Severity ?

5.9 (Medium)


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

CWE

CWE-203 - Observable Discrepancy

Assigner

wolfSSL

References

URL

Tags

	https://people.redhat.com/~hkario/marvin/	technical-descriptionthird-party-advisory
	https://www.wolfssl.com/docs/security-vulnerabilities/

Impacted products

	Vendor	Product	Version
	wolfSSL	wolfSSL	Affected: 3.12.2 , ≤ 5.6.4 (release bundle)

Credits

Hubert Kario tlsfuzzer

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GSD-2023-6935

CVE-2023-6935 (GCVE-0-2023-6935)

Tags

Sightings

Nomenclature