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"lastModified": "2024-11-21T06:15:52.080", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 4.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "[email protected]", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"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, "source": "[email protected]", "type": "Primary"}]}, "published": "2021-08-23T05:15:08.063", "references": [{"source": "[email protected]", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/krb5/krb5/commit/d775c95af7606a51bf79547a94fa52ddd1cb7f49"}, {"source": "[email protected]", "tags": ["Release Notes", "Third Party Advisory"], "url": "https://github.com/krb5/krb5/releases"}, {"source": "[email protected]", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2021/09/msg00019.html"}, {"source": "[email protected]", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MFCLW7D46E4VCREKKH453T5DA4XOLHU2/"}, {"source": "[email protected]", "tags": ["Third Party Advisory"], "url": "https://security.netapp.com/advisory/ntap-20210923-0002/"}, {"source": "[email protected]", "tags": ["Vendor Advisory"], "url": 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{"affected_release": [{"advisory": "RHSA-2021:4788", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "krb5-0:1.15.1-51.el7_9", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2021-11-23T00:00:00Z"}, {"advisory": "RHSA-2021:3576", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "krb5-0:1.18.2-8.3.el8_4", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-09-21T00:00:00Z"}], "bugzilla": {"description": "krb5: NULL pointer dereference in process_tgs_req() in kdc/do_tgs_req.c via a FAST inner body that lacks server field", "id": "1996834", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1996834"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-476", "details": ["The Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.18.5 and 1.19.x before 1.19.3 has a NULL pointer dereference in kdc/do_tgs_req.c via a FAST inner body that lacks a server field.", "A flaw was found in krb5. The Key Distribution Center (KDC) in MIT Kerberos 5 has a NULL pointer dereference via a FAST inner body that lacks a server field. An authenticated attacker could use this flaw to crash the Kerberos KDC server. The highest threat from this vulnerability is to system availability."], "name": "CVE-2021-37750", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "krb5", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "krb5", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:jboss_core_services:1", "fix_state": "Not affected", "package_name": "krb5", "product_name": "Red Hat JBoss Core Services"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:6", "fix_state": "Not affected", "package_name": "krb5", "product_name": "Red Hat JBoss Enterprise Application Platform 6"}], "public_date": "2021-08-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-37750\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-37750"], "threat_severity": "Moderate", "upstream_fix": "krb5 1.18.5, krb5 1.19.3"}