Executive Summary

Informations
Name CVE-2021-3573 First vendor Publication 2021-08-13
Vendor Cve Last vendor Modification 2023-11-07

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 6.4
Base Score 6.4 Environmental Score 6.4
impact SubScore 5.9 Temporal Score 6.4
Exploitabality Sub Score 0.5
 
Attack Vector Local Attack Complexity High
Privileges Required High User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:M/Au:N/C:C/I:C/A:C)
Cvss Base Score 6.9 Attack Range Local
Cvss Impact Score 10 Attack Complexity Medium
Cvss Expoit Score 3.4 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3573

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-362 Race Condition

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 1
Os 3428
Os 3

Sources (Detail)

Source Url
MISC https://bugzilla.redhat.com/show_bug.cgi?id=1966578
https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth.git/commi...
https://www.openwall.com/lists/oss-security/2021/06/08/2
MLIST http://www.openwall.com/lists/oss-security/2023/07/02/1

Alert History

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Date Informations
2024-03-12 13:17:58
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2024-02-02 02:26:53
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2024-02-01 12:24:16
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2024-01-12 02:19:33
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2023-12-29 02:17:37
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2023-11-22 02:17:02
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2023-11-07 21:34:19
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2023-09-29 13:11:45
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2023-09-05 13:21:10
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2023-09-05 01:23:47
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2023-09-02 13:19:44
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2023-09-02 01:24:09
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2023-08-12 13:25:50
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2023-08-12 01:23:22
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2023-08-11 13:18:05
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2023-08-11 01:24:09
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2023-08-06 13:16:03
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2023-08-06 01:23:07
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2023-08-04 13:16:25
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2023-08-04 01:23:28
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2023-07-14 13:16:28
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2023-07-14 01:23:16
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2023-07-12 13:22:45
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2023-07-02 21:29:15
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2023-06-06 13:08:34
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2023-04-13 02:06:39
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2023-03-29 02:18:37
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2023-03-28 12:23:28
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2023-03-25 02:06:30
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2023-01-25 02:06:44
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2023-01-20 02:06:14
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2022-10-11 13:08:14
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2022-10-11 01:22:55
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2022-09-09 02:06:22
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2022-03-11 01:57:45
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2022-02-01 01:51:46
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2021-12-11 12:52:39
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2021-12-11 01:49:33
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2021-08-26 09:22:56
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2021-08-25 00:22:54
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2021-08-19 09:22:50
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2021-08-13 21:23:11
  • First insertion