Description
The function `OCSP_basic_verify` verifies the signer certificate on an OCSP response. In the case where the (non-default) flag OCSP_NOCHECKS is used then the response will be positive (meaning a successful verification) even in the case where the response signing certificate fails to verify. It is anticipated that most users of `OCSP_basic_verify` will not use the OCSP_NOCHECKS flag. In this case the `OCSP_basic_verify` function will return a negative value (indicating a fatal error) in the case of a certificate verification failure. The normal expected return value in this case would be 0. This issue also impacts the command line OpenSSL "ocsp" application. When verifying an ocsp response with the "-no_cert_checks" option the command line application will report that the verification is successful even though it has in fact failed. In this case the incorrect successful response will also be accompanied by error messages showing the failure and contradicting the apparently successful result. Fixed in OpenSSL 3.0.3 (Affected 3.0.0,3.0.1,3.0.2).
Published: 2022-05-03
Score: 5.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2022-4552 The function `OCSP_basic_verify` verifies the signer certificate on an OCSP response. In the case where the (non-default) flag OCSP_NOCHECKS is used then the response will be positive (meaning a successful verification) even in the case where the response signing certificate fails to verify. It is anticipated that most users of `OCSP_basic_verify` will not use the OCSP_NOCHECKS flag. In this case the `OCSP_basic_verify` function will return a negative value (indicating a fatal error) in the case of a certificate verification failure. The normal expected return value in this case would be 0. This issue also impacts the command line OpenSSL "ocsp" application. When verifying an ocsp response with the "-no_cert_checks" option the command line application will report that the verification is successful even though it has in fact failed. In this case the incorrect successful response will also be accompanied by error messages showing the failure and contradicting the apparently successful result. Fixed in OpenSSL 3.0.3 (Affected 3.0.0,3.0.1,3.0.2).
Github GHSA Github GHSA GHSA-mfm6-r9g2-q4r7 `OCSP_basic_verify` may incorrectly verify the response signing certificate
Ubuntu USN Ubuntu USN USN-5402-1 OpenSSL vulnerabilities
History

Mon, 05 May 2025 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


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Openssl Openssl
Redhat Enterprise Linux
cve-icon MITRE

Status: PUBLISHED

Assigner: openssl

Published:

Updated: 2025-05-05T16:42:39.898Z

Reserved: 2022-04-13T00:00:00.000Z

Link: CVE-2022-1343

cve-icon Vulnrichment

Updated: 2024-08-03T00:03:05.875Z

cve-icon NVD

Status : Modified

Published: 2022-05-03T16:15:18.873

Modified: 2025-05-05T17:17:34.273

Link: CVE-2022-1343

cve-icon Redhat

Severity : Moderate

Publid Date: 2022-05-03T00:00:00Z

Links: CVE-2022-1343 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses