CVE-2021-43527 (GCVE-0-2021-43527)

Vulnerability from cvelistv5 – Published: 2021-12-08 00:00 – Updated: 2024-08-04 03:55
VLAI
Summary
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.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • Memory corruption via DER-encoded DSA and RSA-PSS signatures
Assigner
mozilla CNA under the mitre root
CNA scorecard E 38/100 over 679 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Mozilla NSS Affected: unspecified , < 3.73 (custom)
Affected: unspecified , < 3.68.1 (custom)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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}



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