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{"acknowledgement": "Red Hat would like to thank the Samba Project for reporting this issue. Upstream acknowledges Douglas Bagnall (Catalyst and the Samba Team) as the original reporter.", "bugzilla": {"description": "samba: Heap corruption via crafted DN strings", "id": "1941400", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1941400"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["A flaw was found in samba. Spaces used in a string around a domain name (DN), while supposed to be ignored, can cause invalid DN strings with spaces to instead write a zero-byte into out-of-bounds memory, resulting in a crash. The highest threat from this vulnerability is to system availability.", "A flaw was found in samba. Spaces used in a string around a domain name (DN), while supposed to be ignored, can cause invalid DN strings with spaces to instead write a zero-byte into out-of-bounds memory, resulting in a crash. The highest threat from this vulnerability is to system availability."], "name": "CVE-2020-27840", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "samba", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "samba4", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "samba", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "samba", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "samba", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:storage:3", "fix_state": "Not affected", "package_name": "samba", "product_name": "Red Hat Storage 3"}], "public_date": "2021-03-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-27840\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-27840\nhttps://www.samba.org/samba/security/CVE-2020-27840.html"], "statement": "This flaw does not affect the version of Samba shipped with Red Hat Enterprise Linux and Red Hat Gluster Storage 3 because there is no support for Samba as Active Directory Domain Controller.", "threat_severity": "Important", "upstream_fix": "samba 4.14.1, samba 4.13.6, samba 4.12.13"}