CVE-2020-1967 log

Severity High
Remote Yes
Type Denial of service
A NULL pointer dereference has been found in OpenSSL versions 1.1.1d, 1.1.1e and 1.1.1f. Server or client applications that call the SSL_check_chain() function during or after a TLS 1.3 handshake may crash due to a NULL pointer dereference as a result of incorrect handling of the "signature_algorithms_cert" TLS extension. The crash occurs if an invalid or unrecognised signature algorithm is received from the peer. This could be exploited by a malicious peer in a Denial of Service attack.
Group Package Affected Fixed Severity Status Ticket
AVG-1142 lib32-openssl 1.1.1.f-1 1.1.1.g-1 High Fixed
AVG-1139 openssl 1.1.1.f-1 1.1.1.g-1 High Fixed
Date Advisory Group Package Severity Type
22 Apr 2020 ASA-202004-19 AVG-1142 lib32-openssl High denial of service
21 Apr 2020 ASA-202004-18 AVG-1139 openssl High denial of service