gsd-2021-4209
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
A NULL pointer dereference flaw was found in GnuTLS. As Nettle's hash update functions internally call memcpy, providing zero-length input may cause undefined behavior. This flaw leads to a denial of service after authentication in rare circumstances.
Aliases
Aliases
{ "GSD": { "alias": "CVE-2021-4209", "description": "A NULL pointer dereference flaw was found in GnuTLS. As Nettle\u0027s hash update functions internally call memcpy, providing zero-length input may cause undefined behavior. This flaw leads to a denial of service after authentication in rare circumstances.", "id": "GSD-2021-4209", "references": [ "https://www.suse.com/security/cve/CVE-2021-4209.html", "https://advisories.mageia.org/CVE-2021-4209.html", "https://ubuntu.com/security/CVE-2021-4209" ] }, "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2021-4209" ], "details": "A NULL pointer dereference flaw was found in GnuTLS. As Nettle\u0027s hash update functions internally call memcpy, providing zero-length input may cause undefined behavior. This flaw leads to a denial of service after authentication in rare circumstances.", "id": "GSD-2021-4209", "modified": "2023-12-13T01:23:11.456683Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "secalert@redhat.com", "ID": "CVE-2021-4209", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "GnuTLS", "version": { "version_data": [ { "version_value": "Fixed in gnutls v3.7.3" } ] } } ] }, "vendor_name": "n/a" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "A NULL pointer dereference flaw was found in GnuTLS. As Nettle\u0027s hash update functions internally call memcpy, providing zero-length input may cause undefined behavior. This flaw leads to a denial of service after authentication in rare circumstances." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-476 - NULL Pointer Dereference" } ] } ] }, "references": { "reference_data": [ { "name": "https://gitlab.com/gnutls/gnutls/-/issues/1306", "refsource": "MISC", "url": "https://gitlab.com/gnutls/gnutls/-/issues/1306" }, { "name": "https://bugzilla.redhat.com/show_bug.cgi?id=2044156", "refsource": "MISC", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2044156" }, { "name": "https://access.redhat.com/security/cve/CVE-2021-4209", "refsource": "MISC", "url": "https://access.redhat.com/security/cve/CVE-2021-4209" }, { "name": "https://gitlab.com/gnutls/gnutls/-/merge_requests/1503", "refsource": "MISC", "url": "https://gitlab.com/gnutls/gnutls/-/merge_requests/1503" }, { "name": "https://gitlab.com/gnutls/gnutls/-/commit/3db352734472d851318944db13be73da61300568", "refsource": "MISC", "url": "https://gitlab.com/gnutls/gnutls/-/commit/3db352734472d851318944db13be73da61300568" }, { "name": "https://security.netapp.com/advisory/ntap-20220915-0005/", "refsource": "CONFIRM", "url": "https://security.netapp.com/advisory/ntap-20220915-0005/" } ] } }, "nvd.nist.gov": { "configurations": { "CVE_data_version": "4.0", "nodes": [ { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:a:gnu:gnutls:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "3.7.3", "vulnerable": true } ], "operator": "OR" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true } ], "operator": "OR" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:a:netapp:solidfire_\\\u0026_hci_management_node:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*", "cpe_name": [], "vulnerable": true } ], "operator": "OR" }, { "children": [ { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:a:netapp:hci_bootstrap_os:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true } ], "operator": "OR" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:h:netapp:hci_compute_node:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false } ], "operator": "OR" } ], "cpe_match": [], "operator": "AND" } ] }, "cve": { "CVE_data_meta": { "ASSIGNER": "secalert@redhat.com", "ID": "CVE-2021-4209" }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "en", "value": "A NULL pointer dereference flaw was found in GnuTLS. As Nettle\u0027s hash update functions internally call memcpy, providing zero-length input may cause undefined behavior. This flaw leads to a denial of service after authentication in rare circumstances." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "en", "value": "CWE-476" } ] } ] }, "references": { "reference_data": [ { "name": "https://gitlab.com/gnutls/gnutls/-/issues/1306", "refsource": "MISC", "tags": [ "Third Party Advisory" ], "url": "https://gitlab.com/gnutls/gnutls/-/issues/1306" }, { "name": "https://access.redhat.com/security/cve/CVE-2021-4209", "refsource": "MISC", "tags": [ "Third Party Advisory" ], "url": "https://access.redhat.com/security/cve/CVE-2021-4209" }, { "name": "https://gitlab.com/gnutls/gnutls/-/merge_requests/1503", "refsource": "MISC", "tags": [ "Third Party Advisory" ], "url": "https://gitlab.com/gnutls/gnutls/-/merge_requests/1503" }, { "name": "https://bugzilla.redhat.com/show_bug.cgi?id=2044156", "refsource": "MISC", "tags": [ "Issue Tracking", "Third Party Advisory" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2044156" }, { "name": "https://gitlab.com/gnutls/gnutls/-/commit/3db352734472d851318944db13be73da61300568", "refsource": "MISC", "tags": [ "Patch", "Third Party Advisory" ], "url": "https://gitlab.com/gnutls/gnutls/-/commit/3db352734472d851318944db13be73da61300568" }, { "name": "https://security.netapp.com/advisory/ntap-20220915-0005/", "refsource": "CONFIRM", "tags": [ "Third Party Advisory" ], "url": "https://security.netapp.com/advisory/ntap-20220915-0005/" } ] } }, "impact": { "baseMetricV3": { "cvssV3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "exploitabilityScore": 2.8, "impactScore": 3.6 } }, "lastModifiedDate": "2022-10-27T16:57Z", "publishedDate": "2022-08-24T16:15Z" } } }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.