Headline
CVE-2021-3573: Invalid Bug ID
A use-after-free in function hci_sock_bound_ioctl() of the Linux kernel HCI subsystem was found in the way user calls ioct HCIUNBLOCKADDR or other way triggers race condition of the call hci_unregister_dev() together with one of the calls hci_sock_blacklist_add(), hci_sock_blacklist_del(), hci_get_conn_info(), hci_get_auth_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.
‘1966578?cve=title’ is not a valid bug number nor an alias to a bug.
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An update for kernel is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2019-14615: kernel: Intel graphics card information leak. * CVE-2020-0427: kernel: out-of-bounds reads in pinctrl subsystem. * CVE-2020-24502: kernel: Improper input validation in some Intel(R) Ethernet E810 Adapter drivers * CVE-2020-24503: kernel: Insufficient access control in some Intel(R) Ethernet E810 Adapter drivers * CVE-2020-24504: kernel: Uncontroll...
An update for kernel-rt is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2019-14615: kernel: Intel graphics card information leak. * CVE-2020-0427: kernel: out-of-bounds reads in pinctrl subsystem. * CVE-2020-24502: kernel: Improper input validation in some Intel(R) Ethernet E810 Adapter drivers * CVE-2020-24503: kernel: Insufficient access control in some Intel(R) Ethernet E810 Adapter drivers * CVE-2020-24504: kernel: Uncontr...