CVE-2021-3573
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-3573
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3573.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-3573
- Downstream
- Related
- Published
- 2021-08-13T14:15:07Z
- Modified
- 2025-08-09T19:01:28Z
- Severity
-
- 6.4 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
A use-after-free in function hcisockboundioctl() of the Linux kernel HCI subsystem was found in the way user calls ioct HCIUNBLOCKADDR or other way triggers race condition of the call hciunregisterdev() together with one of the calls hcisockblacklistadd(), hcisockblacklistdel(), hcigetconninfo(), hcigetauth_info(). A privileged local user could use this flaw to crash the system or escalate their privileges on the system. This flaw affects the Linux kernel versions prior to 5.13-rc5.
- References