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{"bugzilla": {"description": "exim: hard-link following vulnerability in mailbox handling", "id": "600093", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=600093"}, "csaw": false, "cvss": {"cvss_base_score": "4.3", "cvss_scoring_vector": "AV:N/AC:M/Au:N/C:N/I:P/A:N", "status": "draft"}, "details": ["transports/appendfile.c in Exim before 4.72, when a world-writable sticky-bit mail directory is used, does not verify the st_nlink field of mailbox files, which allows local users to cause a denial of service or possibly gain privileges by creating a hard link to another user's file."], "name": "CVE-2010-2023", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:4", "fix_state": "Affected", "impact": "low", "package_name": "exim", "product_name": "Red Hat Enterprise Linux 4"}, {"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Affected", "impact": "low", "package_name": "exim", "product_name": "Red Hat Enterprise Linux 5"}], "public_date": "2010-06-03T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2010-2023\nhttps://nvd.nist.gov/vuln/detail/CVE-2010-2023"], "statement": "The Red Hat Security Response Team has rated this issue as having low security impact. By default, /var/spool/mail/ is not provided with permissions to make an attack scenario possible, and there is no reason for permissions to be relaxed in such a way as to make it possible. We therefore have no plans to fix this flaw in Red Hat Enterprise Linux 4 or 5.", "threat_severity": "Moderate"}