CVE-2022-3602
HighSummary
Weryfikacja certyfikatów X.509 może być podatna na przepełnienie bufora podczas sprawdzania ograniczeń nazw. Atakujący może stworzyć złośliwy adres e-mail, co prowadzi do przepełnienia czterech bajtów kontrolowanych przez atakującego na stosie.
Risk Assessment
Przepełnienie bufora może prowadzić do awarii systemu (co powoduje odmowę usługi) lub potencjalnie do zdalnego wykonania kodu. Chociaż wiele platform implementuje zabezpieczenia przed przepełnieniem stosu, ryzyko zdalnego wykonania kodu nadal istnieje.
Recommendation
Zaleca się aktualizację oprogramowania oraz monitorowanie systemów w celu wykrycia potencjalnych prób wykorzystania tej podatności.
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Original NVD description (English source)
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 the malicious certificate or for the application to continue certificate verification despite failure to construct a path to a trusted issuer. An attacker can craft a malicious email address to overflow four attacker-controlled bytes on the stack. This buffer overflow could result in a crash (causing a denial of service) or potentially remote code execution. Many platforms implement stack overflow protections which would mitigate against the risk of remote code execution. The risk may be further mitigated based on stack layout for any given platform/compiler. Pre-announcements of CVE-2022-3602 described this issue as CRITICAL. Further analysis based on some of the mitigating factors described above have led this to be downgraded to HIGH. Users are still encouraged to up
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

