NSS (Network Security Services) versions prior to 3.73 or 3.68.1 ESR 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. This vulnerability affects NSS < 3.73 and NSS < 3.68.1.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published: 2021-12-08T00:00:00

Updated: 2024-08-04T03:55:29.297Z

Reserved: 2021-11-08T00:00:00

Link: CVE-2021-43527

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2021-12-08T22:15:09.163

Modified: 2023-02-23T01:40:31.327

Link: CVE-2021-43527

cve-icon Redhat

Severity : Critical

Publid Date: 2021-12-01T16:00:00Z

Links: CVE-2021-43527 - Bugzilla