CVE-2021-3752

CVSS V2 High 7.9 CVSS V3 High 7.1
Description
A use-after-free flaw was found in the Linux kernel’s Bluetooth subsystem in the way user calls connect to the socket and disconnect simultaneously due to a race condition. This flaw allows a user to crash the system or escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Overview
  • CVE ID
  • CVE-2021-3752
  • Assigner
  • secalert@redhat.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2022-02-16T19:15:08
  • Last Modified Date
  • 2023-02-24T14:42:58
Weakness Enumerations
CWE URL
CWE-416 http://cwe.mitre.org/data/definitions/416.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 5.15.3
AND
cpe:2.3:a:redhat:3scale:2.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:redhat:virtualization_host:4.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_for_real_time:7:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_for_real_time_for_nfv:7:*:*:*:*:*:*:* 1 OR
AND
cpe:2.3:o:netapp:baseboard_management_controller_h300s_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:baseboard_management_controller_h300s:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:baseboard_management_controller_h500s_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:baseboard_management_controller_h500s:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:baseboard_management_controller_h700s_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:baseboard_management_controller_h700s:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:baseboard_management_controller_h300e_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:baseboard_management_controller_h300e:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:baseboard_management_controller_h500e_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:baseboard_management_controller_h500e:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:baseboard_management_controller_h700e_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:baseboard_management_controller_h700e:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:baseboard_management_controller_h410s_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:baseboard_management_controller_h410s:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:baseboard_management_controller_h410c_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:baseboard_management_controller_h410c:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:A/AC:M/Au:N/C:C/I:C/A:C
  • Access Vector
  • ADJACENT_NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 7.9
  • Severity
  • HIGH
  • Exploitability Score
  • 5.5
  • Impact Score
  • 10
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • ADJACENT_NETWORK
  • Attack Compatibility
  • HIGH
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 7.1
  • Base Severity
  • HIGH
  • Exploitability Score
  • 1.2
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1999544 Issue Tracking Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html Mailing List Third Party Advisory
https://lore.kernel.org/lkml/20211115165435.133245729@linuxfoundation.org/ Patch Vendor Advisory
https://security.netapp.com/advisory/ntap-20220318-0009/ Third Party Advisory
https://www.debian.org/security/2022/dsa-5096 Third Party Advisory
https://www.openwall.com/lists/oss-security/2021/09/15/4 Exploit Mailing List Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.html
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-3752
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3752
History
Created Old Value New Value Data Type Notes
2022-05-10 15:45:16 Added to TrackCVE
2022-12-06 09:59:59 2022-02-16T19:15Z 2022-02-16T19:15:08 CVE Published Date updated
2022-12-06 09:59:59 2022-07-25T18:16:31 CVE Modified Date updated
2022-12-06 10:00:00 Modified Vulnerability Status updated
2022-12-06 10:00:05 References updated
2022-12-30 15:13:10 Modified Undergoing Analysis Vulnerability Status updated
2023-02-24 15:12:14 2023-02-24T14:42:58 CVE Modified Date updated
2023-02-24 15:12:14 Undergoing Analysis Analyzed Vulnerability Status updated