7.9
CWE
362 416
Advisory Published
CVE Published
CVE Published
Updated

CVE-2021-3752: Race Condition

First published: Tue Aug 31 2021(Updated: )

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.

Credit: secalert@redhat.com secalert@redhat.com secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
redhat/kernel-rt<0:3.10.0-1160.59.1.rt56.1200.el7
0:3.10.0-1160.59.1.rt56.1200.el7
redhat/kernel<0:3.10.0-1160.59.1.el7
0:3.10.0-1160.59.1.el7
redhat/kernel-rt<0:4.18.0-372.9.1.rt7.166.el8
0:4.18.0-372.9.1.rt7.166.el8
redhat/kernel<0:4.18.0-372.9.1.el8
0:4.18.0-372.9.1.el8
Linux Linux kernel>=2.6.12<4.4.293
Linux Linux kernel>=4.5<4.9.291
Linux Linux kernel>=4.10<4.14.256
Linux Linux kernel>=4.15<4.19.218
Linux Linux kernel>=4.20<5.4.160
Linux Linux kernel>=5.5<5.10.80
Linux Linux kernel>=5.11<5.14.19
Linux Linux kernel>=5.15<5.15.3
Redhat 3scale=2.0
Redhat Virtualization Host=4.0
Fedoraproject Fedora=34
Redhat Enterprise Linux=7.0
Redhat Enterprise Linux=8.0
Redhat Enterprise Linux For Real Time=7
Redhat Enterprise Linux For Real Time For Nfv=7
Netapp Baseboard Management Controller H300s Firmware
Netapp Baseboard Management Controller H300s
Netapp Baseboard Management Controller H500s Firmware
Netapp Baseboard Management Controller H500s
Netapp Baseboard Management Controller H700s Firmware
Netapp Baseboard Management Controller H700s
Netapp Baseboard Management Controller H300e Firmware
Netapp Baseboard Management Controller H300e
Netapp Baseboard Management Controller H500e Firmware
Netapp Baseboard Management Controller H500e
Netapp Baseboard Management Controller H700e Firmware
Netapp Baseboard Management Controller H700e
Netapp Baseboard Management Controller H410s Firmware
Netapp Baseboard Management Controller H410s
Netapp Baseboard Management Controller H410c Firmware
Netapp Baseboard Management Controller H410c
Debian Debian Linux=9.0
Debian Debian Linux=10.0
Oracle Communications Cloud Native Core Binding Support Function=22.1.3
Oracle Communications Cloud Native Core Network Exposure Function=22.1.1
Oracle Communications Cloud Native Core Policy=22.2.0
redhat/kernel<5.15.3
5.15.3
All of
Netapp H300s
Netapp H300s Firmware
All of
Netapp H500s
Netapp H500s Firmware
All of
Netapp H700s
Netapp H700s Firmware
All of
Netapp H300e
Netapp H300e Firmware
All of
Netapp H500e
Netapp H500e Firmware
All of
Netapp H700e
Netapp H700e Firmware
All of
Netapp H410s
Netapp H410s Firmware
All of
Netapp H410c Firmware
Netapp H410c
Netapp H300s
Netapp H300s Firmware
Netapp H500s
Netapp H500s Firmware
Netapp H700s
Netapp H700s Firmware
Netapp H300e
Netapp H300e Firmware
Netapp H500e
Netapp H500e Firmware
Netapp H700e
Netapp H700e Firmware
Netapp H410s
Netapp H410s Firmware
Netapp H410c Firmware
Netapp H410c
debian/linux
5.10.223-1
5.10.226-1
6.1.115-1
6.1.112-1
6.11.5-1
6.11.7-1

Remedy

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation baser or stability. The possible solution is to disable Bluetooth completely: https://access.redhat.com/solutions/2682931

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

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