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{"acknowledgement": "Red Hat would like to thank MIT Kerberos Team for reporting this issue.", "bugzilla": {"description": "krb5: KDC may issue unrequested tickets due to KrbFastReq forgery (MITKRB5-SA-2010-007)", "id": "648736", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=648736"}, "csaw": false, "cvss": {"cvss_base_score": "2.1", "cvss_scoring_vector": "AV:N/AC:H/Au:S/C:N/I:P/A:N", "status": "draft"}, "details": ["The Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.7 does not properly restrict the use of TGT credentials for armoring TGS requests, which might allow remote authenticated users to impersonate a client by rewriting an inner request, aka a \"KrbFastReq forgery issue.\""], "name": "CVE-2010-4021", "public_date": "2010-11-30T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2010-4021"], "statement": "Not vulnerable. This issue did not affect the versions of krb5 as shipped with Red Hat Enterprise Linux 4, 5, or 6.", "threat_severity": "Low"}

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