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{"bugzilla": {"description": "sudo: double free with per-command chroot sudoers rules", "id": "2174218", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2174218"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-415", "details": ["Sudo before 1.9.13p2 has a double free in the per-command chroot feature.", "A double-free vulnerability was found in Sudo in the per-command chroot feature. This flaw exists due to a boundary error when matching a sudoer rule that contains a per-command chroot directive (CHROOT=dir). By sending a specially-crafted request, a local privileged attacker can elevate privileges and execute arbitrary code on the system."], "name": "CVE-2023-27320", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "sudo", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "sudo", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "sudo", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "sudo", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2023-02-28T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-27320\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-27320\nhttps://www.openwall.com/lists/oss-security/2023/02/28/1\nhttps://www.sudo.ws/releases/stable/#1.9.13p2"], "statement": "The CHROOT support was only added in Sudo v1.9.3 and Sudo v1.9.8 included a fix for a memory leak in the set_cmnd_path() function, which can result in the \"user_cmnd\" variable being freed twice, but only when processing a sudoers rule that contains a \"CHROOT\" setting. This does not affect the \"chroot\" Defaults setting. Only a per-rule \"CHROOT\" setting will trigger the bug.\nHence, it only affects Sudo v1.9.8 through to 1.9.13p1. \nRed Hat Enterprise Linux - 6, 7, 8, 9 are shipped with lower versions of Sudo that doesn't contains the vulnerable code. Thus, they are not affected.", "threat_severity": "Moderate", "upstream_fix": "sudo 1.9.13p2"}