cvelist/2021/43xxx/CVE-2021-43527.json

{
    "data_type": "CVE",
    "data_format": "MITRE",
    "data_version": "4.0",
    "CVE_data_meta": {
        "ID": "CVE-2021-43527",
        "ASSIGNER": "security@mozilla.org",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "Mozilla",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "NSS",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "3.73",
                                            "version_affected": "<"
                                        },
                                        {
                                            "version_value": "3.68.1",
                                            "version_affected": "<"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "Memory corruption via DER-encoded DSA and RSA-PSS signatures"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "url": "https://www.mozilla.org/security/advisories/mfsa2021-51/",
                "refsource": "MISC",
                "name": "https://www.mozilla.org/security/advisories/mfsa2021-51/"
            },
            {
                "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1737470",
                "refsource": "MISC",
                "name": "https://bugzilla.mozilla.org/show_bug.cgi?id=1737470"
            },
            {
                "url": "https://ftp.mozilla.org/pub/security/nss/releases/NSS_3_73_RTM/",
                "refsource": "MISC",
                "name": "https://ftp.mozilla.org/pub/security/nss/releases/NSS_3_73_RTM/"
            },
            {
                "url": "https://ftp.mozilla.org/pub/security/nss/releases/NSS_3_68_1_RTM/",
                "refsource": "MISC",
                "name": "https://ftp.mozilla.org/pub/security/nss/releases/NSS_3_68_1_RTM/"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://security.netapp.com/advisory/ntap-20211229-0002/",
                "url": "https://security.netapp.com/advisory/ntap-20211229-0002/"
            }
        ]
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "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."
            }
        ]
    }
}