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Mageia 8 MGASA-2021-0534 Critical: NSS Heap Overflow Threat

mageia
Calendar Grey December 2, 2021
Dist Mageia Esm H88
Mageia 2021-0535 tackles vulnerabilities in OpenSSL concerning certificate validation, affecting numerous software systems.
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

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 (CVE-2021-43527).
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.

References

- https://bugs.mageia.org/show_bug.cgi?id=29714

- https://www.mozilla.org/en-US/security/advisories/mfsa2021-51/

- https://www.cve.org/CVERecord?id=CVE-2021-43527

Topics%20covered

Topics Covered

security advisory heap overflow nss mageia signature handling

Resolution

SRPMS

- 8/core/nss-3.73.0-1.mga8

Severity
critical
Lowest
Low
Medium
High
Critical

Publication date: 02 Dec 2021
URL: https://advisories.mageia.org/MGASA-2021-0534.html
Type: security
CVE: CVE-2021-43527

Topics%20covered

Topics Covered

security advisory heap overflow nss mageia signature handling

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