MGASA-2021-0534 - Updated nss packages fix security vulnerability

Publication date: 02 Dec 2021
URL: https://advisories.mageia.org/MGASA-2021-0534.html
Type: security
Affected Mageia releases: 8
CVE: CVE-2021-43527

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://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43527

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

Mageia 2021-0534: nss security update

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://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43527

Resolution

MGASA-2021-0534 - Updated nss packages fix security vulnerability

SRPMS

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

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

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