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Pre-announcements of CVE-2022-3602 described this issue as CRITICAL.įurther analysis based on some of the mitigating factors described above Mitigated based on stack layout for any given platform/compiler. Many platforms implement stack overflow protections which would mitigateĪgainst the risk of remote code execution. Overflow could result in a crash (causing a denial of service) or To overflow four attacker-controlled bytes on the stack. An attacker can craft a malicious email address Note that this occursĪfter certificate chain signature verification and requires either aĬA to have signed the malicious certificate or for the application toĬontinue certificate verification despite failure to construct a path Specifically in name constraint checking. In a TLS server, this can be triggered if the server requestsĬlient authentication and a malicious client connects. In a TLS client, this can be triggered by connecting to a malicious

This buffer overflow could result in a crash To overflow an arbitrary number of bytes containing the `.' character An attacker can craft a malicious email address in a certificate Have signed a malicious certificate or for an application to continueĬertificate verification despite failure to construct a path to a trusted Note that this occurs afterĬertificate chain signature verification and requires either a CA to Extended support is available for 1.0.2 from OpenSSL Software Services for premium support customers. Note: All OpenSSL versions before 1.1.1 are out of support and no longer receiving updates. If you think you have found a security bug in OpenSSL, please report it to us.