Vulnerability Details : CVE-2022-1343

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 16:15:19
Updated 2023-02-14 12:15:12
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Exploit prediction scoring system (EPSS) score for CVE-2022-1343

Probability of exploitation activity in the next 30 days: 0.15%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 51 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2022-1343

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Source

CWE ids for CVE-2022-1343

References for CVE-2022-1343

Products affected by CVE-2022-1343

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