openssl: EDIPARTYNAME NULL pointer de-reference (CVE-2020-1971)
The X.509 GeneralName type is a generic type for representing different types of names. One of those name types is known as EDIPartyName. OpenSSL provides a function GENERAL_NAME_cmp which compares different instances of a GENERAL_NAME to see if they are equal or not. This function behaves incorrectly when both GENERAL_NAMEs contain an EDIPARTYNAME. A NULL pointer dereference and a crash may occur leading to a possible denial of service attack.(Affected 1.1.1-1.1.1h)
Fixed In Version:
openssl 1.1.1i
Reference:
https://www.openssl.org/news/secadv/20201208.txt
Affected branches:
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