CVE-2022-3786
Vulnerability from cvelistv5
Published
2022-11-01 00:00
Modified
2024-08-03 01:20
Severity ?
Summary
A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed a malicious certificate or for an application to continue certificate verification despite failure to construct a path to a trusted issuer. An attacker can craft a malicious email address in a certificate to overflow an arbitrary number of bytes containing the `.' character (decimal 46) on the stack. This buffer overflow could result in a crash (causing a denial of service). In a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects.
References
openssl-security@openssl.orghttps://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=c42165b5706e42f67ef8ef4c351a9a4c5d21639aPatch, Vendor Advisory
openssl-security@openssl.orghttps://www.openssl.org/news/secadv/20221101.txtVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=c42165b5706e42f67ef8ef4c351a9a4c5d21639aPatch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.openssl.org/news/secadv/20221101.txtVendor Advisory
Impacted products
Vendor Product Version
Show details on NVD website

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