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CVE-2021-43527 Detail

Description

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.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1737470 Issue Tracking  Permissions Required  Vendor Advisory 
https://cert-portal.siemens.com/productcert/pdf/ssa-594438.pdf Third Party Advisory 
https://ftp.mozilla.org/pub/security/nss/releases/NSS_3_68_1_RTM/ Vendor Advisory 
https://ftp.mozilla.org/pub/security/nss/releases/NSS_3_73_RTM/ Vendor Advisory 
https://security.gentoo.org/glsa/202212-05 Third Party Advisory 
https://security.netapp.com/advisory/ntap-20211229-0002/ Third Party Advisory 
https://www.mozilla.org/security/advisories/mfsa2021-51/ Vendor Advisory 
https://www.oracle.com/security-alerts/cpuapr2022.html Patch  Third Party Advisory 
https://www.starwindsoftware.com/security/sw-20220802-0001/ Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-787 Out-of-bounds Write cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

11 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-43527
NVD Published Date:
12/08/2021
NVD Last Modified:
02/22/2023
Source:
Mozilla Corporation