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{"bugzilla": {"description": "kernel: isotp_setsockopt in net/can/isotp.c allows privilege escalation via use-after-free", "id": "1959673", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1959673"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.8", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-416", "details": ["In the Linux kernel 5.11 through 5.12.2, isotp_setsockopt in net/can/isotp.c allows privilege escalation to root by leveraging a use-after-free. (This does not affect earlier versions that lack CAN ISOTP SF_BROADCAST support.)", "A flaw was found in the Linux kernel. A use-after-free flaw in isotp_setsockopt leads to arbitrary kernel execution by overwriting the sk_error_report() pointer which can be misused in order to execute a user-controlled ROP chain to gain root privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability."], "name": "CVE-2021-32606", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-alt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2021-05-12T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-32606\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-32606\nhttps://www.openwall.com/lists/oss-security/2021/05/11/16"], "threat_severity": "Important"}