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  • #393
Closed
Open
Created Dec 08, 2020 by Emily@emily🤖

system/openssl: CVE-2020-1971: GENERAL_NAME_cmp NULL ptr dereference

Bugzilla ID 393
Alias(es) CVE-2020-1971
Reporter Max Rees (sroracle)
Assignee Max Rees (sroracle)
Reported 2020-12-08 15:10:57 -0600
Modified 2020-12-08 15:10:57 -0600
Status UNCONFIRMED
Version 1.0-RC1
Hardware Adélie Linux / All
Importance --- / normal
Package(s) system/openssl
URL https://www.openssl.org/news/secadv/20201208.txt

Description

CVE-2020-1971: https://www.openssl.org/news/secadv/20201208.txt

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.
...
OpenSSL 1.1.1 users should upgrade to 1.1.1i.

Edited Nov 04, 2021 by Zach van Rijn
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