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rustsecRustsecRUSTSEC-2022-0027
HistoryMay 03, 2022 - 12:00 p.m.

`OCSP_basic_verify` may incorrectly verify the response signing certificate

2022-05-0312:00:00
rustsec.org
11

0.002 Low

EPSS

Percentile

51.7%

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.

CPENameOperatorVersion
openssl-srcge300.0.0
openssl-srclt300.0.6