CVE-2021-43527 log

Severity High
Remote Yes
Type Arbitrary code execution
NSS (Network Security Services) versions prior to 3.73 are vulnerable to a heap overflow when handling DER-encoded DSA or RSA-PSS signatures. Applications using NSS for handling signatures encoded within CMS, S/MIME, PKCS #7, or PKCS #12 are likely to be impacted. Applications using NSS for certificate validation or other TLS, X.509, OCSP or CRL functionality may be impacted, depending on how they configure NSS.

Note: This vulnerability does NOT impact Mozilla Firefox. However, email clients and PDF viewers that use NSS for signature verification, such as Thunderbird, LibreOffice, Evolution and Evince are believed to be impacted.
Group Package Affected Fixed Severity Status Ticket
AVG-2597 lib32-nss 3.72-2 3.73-1 High Fixed
AVG-2596 nss 3.72-2 3.73-1 High Fixed
Date Advisory Group Package Severity Type
03 Dec 2021 ASA-202112-4 AVG-2597 lib32-nss High arbitrary code execution
03 Dec 2021 ASA-202112-3 AVG-2596 nss High arbitrary code execution