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{"acknowledgement": "Red Hat would like to thank CERT/CC for reporting this issue.", "affected_release": [{"advisory": "RHSA-2011:0843", "cpe": "cpe:/o:redhat:enterprise_linux:4", "package": "postfix-2:2.2.10-1.5.el4", "product_name": "Red Hat Enterprise Linux 4", "release_date": "2011-05-31T00:00:00Z"}, {"advisory": "RHSA-2011:0843", "cpe": "cpe:/o:redhat:enterprise_linux:5", "package": "postfix-2:2.3.3-2.3.el5_6", "product_name": "Red Hat Enterprise Linux 5", "release_date": "2011-05-31T00:00:00Z"}, {"advisory": "RHSA-2011:0843", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "postfix-2:2.6.6-2.2.el6_1", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2011-05-31T00:00:00Z"}], "bugzilla": {"description": "(smtpd): Crash due to improper management of SASL handlers for SMTP sessions", "id": "699035", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=699035"}, "csaw": false, "cvss": {"cvss_base_score": "4.3", "cvss_scoring_vector": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "status": "verified"}, "details": ["The SMTP server in Postfix before 2.5.13, 2.6.x before 2.6.10, 2.7.x before 2.7.4, and 2.8.x before 2.8.3, when certain Cyrus SASL authentication methods are enabled, does not create a new server handle after client authentication fails, which allows remote attackers to cause a denial of service (heap memory corruption and daemon crash) or possibly execute arbitrary code via an invalid AUTH command with one method followed by an AUTH command with a different method."], "name": "CVE-2011-1720", "public_date": "2011-05-09T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2011-1720\nhttps://nvd.nist.gov/vuln/detail/CVE-2011-1720"], "threat_severity": "Moderate"}