CVEdetails.com the ultimate security vulnerability data source
(e.g.: CVE-2009-1234 or 2010-1234 or 20101234)
Log In   Register
  What's the CVSS score of your company?
Vulnerability Feeds & WidgetsNew   www.itsecdb.com  

Vulnerability Details : CVE-2021-3573

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.
Publish Date : 2021-08-13 Last Update Date : 2021-08-24
Search Twitter   Search YouTube   Search Google

- CVSS Scores & Vulnerability Types

CVSS Score
6.9
Confidentiality Impact Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact Complete (There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 362

- Products Affected By CVE-2021-3573

# Product Type Vendor Product Version Update Edition Language
1 OS Fedoraproject Fedora 34 * * * Version Details Vulnerabilities
2 OS Linux Linux Kernel * * * * Version Details Vulnerabilities
3 OS Linux Linux Kernel 5.13 RC1 * * Version Details Vulnerabilities
4 OS Linux Linux Kernel 5.13 RC2 * * Version Details Vulnerabilities
5 OS Linux Linux Kernel 5.13 RC3 * * Version Details Vulnerabilities
6 OS Linux Linux Kernel 5.13 RC4 * * Version Details Vulnerabilities
7 OS Redhat Enterprise Linux 6.0 * * * Version Details Vulnerabilities
8 OS Redhat Enterprise Linux 7.0 * * * Version Details Vulnerabilities
9 OS Redhat Enterprise Linux 8.0 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Fedoraproject Fedora 1
Linux Linux Kernel 5
Redhat Enterprise Linux 3

- References For CVE-2021-3573

https://www.openwall.com/lists/oss-security/2021/06/08/2
https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth.git/commit/?id=e305509e678b3a4af2b3cfd410f409f7cdaabb52
https://bugzilla.redhat.com/show_bug.cgi?id=1966578

- Metasploit Modules Related To CVE-2021-3573

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site. OVAL is a registered trademark of The MITRE Corporation and the authoritative source of OVAL content is MITRE's OVAL web site.
Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.