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{"bugzilla": {"description": "dbus: users with the same numeric UID could lead to use-after-free and undefined behaviour", "id": "1909101", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1909101"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-416", "details": ["A use-after-free flaw was found in D-Bus Development branch <= 1.13.16, dbus-1.12.x stable branch <= 1.12.18, and dbus-1.10.x and older branches <= 1.10.30 when a system has multiple usernames sharing the same UID. When a set of policy rules references these usernames, D-Bus may free some memory in the heap, which is still used by data structures necessary for the other usernames sharing the UID, possibly leading to a crash or other undefined behaviors", "A use-after-free flaw was found in D-Bus when a system has multiple usernames sharing the same UID. When a set of policy rules references these usernames, D-Bus may free some memory in the heap, which is still used by data structures necessary for the other usernames sharing the UID, possibly leading to a crash or other undefined behaviors."], "name": "CVE-2020-35512", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Out of support scope", "package_name": "dbus", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "dbus", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "dbus", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "dbus", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "dbus", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2020-06-30T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-35512\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-35512"], "statement": "Regarding the concern with D-Bus, users with the same UID are treated as the same user. As in Linux, multiple assumptions are made based on the fact that a user is identified by its UID. It is not advisable to have multiple users with different privileges and the same UID on systems where D-Bus is used. For these reasons, this vulnerability has been rated as having Low Impact.", "threat_severity": "Low", "upstream_fix": "dbus 1.10.32, dbus 1.12.20, dbus 1.13.18"}