{"id":"CVE-2023-4132","title":"Kernel: smsusb: use-after-free caused by do_submit_urb()","summary":"A use-after-free vulnerability was found in the siano smsusb module in the Linux kernel. The bug occurs during device initialization when the siano device is plugged in. This flaw allows a local user to crash the system, causing a denial…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"cna","cwe":["CWE-416"],"vendor":"Red Hat","product":"kernel-rt","affected":["kernel-rt (all versions)","kernel (all versions)","kernel (all versions)","kernel (all versions)","kernel (all versions)","kernel","kernel","kernel-rt","kernel","kernel-rt"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2024-04-25T15:30:20.281573Z"},"published":"2023-08-03","updated":"2026-11-07","sourceUpdated":"2026-11-07T11:32:29.156Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2023-4132","references":[{"url":"https://access.redhat.com/errata/RHSA-2023:6901","label":"RHSA-2023:6901"},{"url":"https://access.redhat.com/errata/RHSA-2023:7077","label":"RHSA-2023:7077"},{"url":"https://access.redhat.com/errata/RHSA-2024:0575","label":"RHSA-2024:0575"},{"url":"https://access.redhat.com/errata/RHSA-2024:0724","label":"RHSA-2024:0724"},{"url":"https://access.redhat.com/security/cve/CVE-2023-4132"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2221707","label":"RHBZ#2221707"}],"tags":["cve.org"],"epss":0.00253,"epssPercentile":0.16951,"ingestedAt":"2026-11-07T12:16:41.113Z","slug":"CVE-2023-4132","body":"## Overview\n\nA use-after-free vulnerability was found in the siano smsusb module in the Linux kernel. The bug occurs during device initialization when the siano device is plugged in. This flaw allows a local user to crash the system, causing a denial of service condition.\n\n## Affected\n\n- `kernel-rt (all versions)`\n- `kernel (all versions)`\n- `kernel (all versions)`\n- `kernel (all versions)`\n- `kernel (all versions)`\n- `kernel`\n- `kernel`\n- `kernel-rt`\n- `kernel`\n- `kernel-rt`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}