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 Software | Affected Version | How 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 | |
| Apple macOS Big Sur | ||
| Apple macOS Ventura | ||
| Apple macOS Ventura | ||
| Apple macOS Big Sur | ||
| Apple macOS Monterey | ||
| Apple macOS Big Sur | ||
| Netapp H300e | ||
| Netapp H300e Firmware | ||
| Netapp H500e | ||
| Netapp H500e Firmware | ||
| Netapp H700e | ||
| Netapp H700e Firmware | ||
| Apple macOS Monterey | ||
| Apple macOS Monterey | ||
| Netapp H410c Firmware | ||
| Netapp H410c | ||
| ubuntu/linux | <5.4.0-97.110 | 5.4.0-97.110 |
| ubuntu/linux | <5.16~ | 5.16~ |
| ubuntu/linux | <4.4.0-229.263 | 4.4.0-229.263 |
| ubuntu/linux | <5.13.0-28.31 | 5.13.0-28.31 |
| ubuntu/linux | <4.15.0-167.175 | 4.15.0-167.175 |
| ubuntu/linux-azure | <4.15.0-1130.143~16.04.1 | 4.15.0-1130.143~16.04.1 |
| ubuntu/linux-azure | <5.16~ | 5.16~ |
| ubuntu/linux-azure | <5.4.0-1068.71 | 5.4.0-1068.71 |
| ubuntu/linux-azure | <4.15.0-1130.143~14.04.1 | 4.15.0-1130.143~14.04.1 |
| ubuntu/linux-dell300x | <5.16~ | 5.16~ |
| ubuntu/linux-dell300x | <4.15.0-1034.39 | 4.15.0-1034.39 |
| ubuntu/linux-fips | <5.16~ | 5.16~ |
| ubuntu/linux-gcp | <4.15.0-1115.129~16.04.1 | 4.15.0-1115.129~16.04.1 |
| ubuntu/linux-gcp | <5.16~ | 5.16~ |
| ubuntu/linux-gcp | <5.4.0-1063.67 | 5.4.0-1063.67 |
| ubuntu/linux-gcp-4.15 | <5.16~ | 5.16~ |
| ubuntu/linux-gcp-4.15 | <4.15.0-1115.129 | 4.15.0-1115.129 |
| ubuntu/linux-gcp-5.11 | <5.11.0-1029.33~20.04.3 | 5.11.0-1029.33~20.04.3 |
| ubuntu/linux-gcp-5.11 | <5.16~ | 5.16~ |
| ubuntu/linux-gcp-5.13 | <5.13.0-1013.16~20.04.1 | 5.13.0-1013.16~20.04.1 |
| ubuntu/linux-gcp-5.13 | <5.16~ | 5.16~ |
| ubuntu/linux-gcp-5.3 | <5.16~ | 5.16~ |
| ubuntu/linux-gcp-5.4 | <5.4.0-1063.67~18.04.1 | 5.4.0-1063.67~18.04.1 |
| ubuntu/linux-gcp-5.8 | <5.16~ | 5.16~ |
| ubuntu/linux-gcp-edge | <5.16~ | 5.16~ |
| ubuntu/linux-gke | <5.4.0-1061.64 | 5.4.0-1061.64 |
| ubuntu/linux-gke | <5.16~ | 5.16~ |
| ubuntu/linux-gke-4.15 | <5.16~ | 5.16~ |
| ubuntu/linux-gke-5.0 | <5.16~ | 5.16~ |
| ubuntu/linux-gke-5.3 | <5.16~ | 5.16~ |
| ubuntu/linux-gke-5.4 | <5.4.0-1061.64~18.04.1 | 5.4.0-1061.64~18.04.1 |
| ubuntu/linux-gke-5.4 | <5.16~ | 5.16~ |
| ubuntu/linux-gkeop | <5.4.0-1032.33 | 5.4.0-1032.33 |
| ubuntu/linux-gkeop | <5.16~ | 5.16~ |
| ubuntu/linux-gkeop-5.4 | <5.4.0-1032.33~18.04.1 | 5.4.0-1032.33~18.04.1 |
| ubuntu/linux-gkeop-5.4 | <5.16~ | 5.16~ |
| ubuntu/linux-hwe | <5.16~ | 5.16~ |
| ubuntu/linux-hwe | <4.15.0-167.175~16.04.1 | 4.15.0-167.175~16.04.1 |
| ubuntu/linux-hwe-5.11 | <5.16~ | 5.16~ |
| ubuntu/linux-hwe-5.13 | <5.16~ | 5.16~ |
| ubuntu/linux-hwe-5.13 | <5.13.0-28.31~20.04.1 | 5.13.0-28.31~20.04.1 |
| ubuntu/linux-hwe-5.15 | <5.16~ | 5.16~ |
| ubuntu/linux-hwe-5.4 | <5.4.0-97.110~18.04.1 | 5.4.0-97.110~18.04.1 |
| ubuntu/linux-hwe-5.4 | <5.16~ | 5.16~ |
| ubuntu/linux-hwe-5.8 | <5.16~ | 5.16~ |
| ubuntu/linux-hwe-edge | <5.16~ | 5.16~ |
| ubuntu/linux-ibm | <5.16~ | 5.16~ |
| ubuntu/linux-ibm | <5.4.0-1013.14 | 5.4.0-1013.14 |
| ubuntu/linux-ibm-5.4 | <5.4.0-1014.15~18.04.1 | 5.4.0-1014.15~18.04.1 |
| ubuntu/linux-ibm-5.4 | <5.16~ | 5.16~ |
| ubuntu/linux-intel-5.13 | <5.16~ | 5.16~ |
| ubuntu/linux-intel-iotg | <5.16~ | 5.16~ |
| ubuntu/linux-intel-iotg-5.15 | <5.16~ | 5.16~ |
| ubuntu/linux-kvm | <4.15.0-1106.108 | 4.15.0-1106.108 |
| ubuntu/linux-kvm | <5.4.0-1054.56 | 5.4.0-1054.56 |
| ubuntu/linux-kvm | <5.13.0-1011.12 | 5.13.0-1011.12 |
| ubuntu/linux-kvm | <5.16~ | 5.16~ |
| ubuntu/linux-kvm | <4.4.0-1110.120 | 4.4.0-1110.120 |
| ubuntu/linux-lowlatency | <5.16~ | 5.16~ |
| ubuntu/linux-lowlatency-hwe-5.15 | <5.16~ | 5.16~ |
| ubuntu/linux-lts-xenial | <4.4.0-229.263~14.04.1 | 4.4.0-229.263~14.04.1 |
| ubuntu/linux-lts-xenial | <5.16~ | 5.16~ |
| ubuntu/linux-oem | <5.16~ | 5.16~ |
| ubuntu/linux-oem-5.10 | <5.10.0-1053.55 | 5.10.0-1053.55 |
| ubuntu/linux-oem-5.10 | <5.16~ | 5.16~ |
| ubuntu/linux-oem-5.13 | <5.16~ | 5.16~ |
| ubuntu/linux-oem-5.13 | <5.13.0-1029.36 | 5.13.0-1029.36 |
| ubuntu/linux-oem-5.14 | <5.14.0-1013.13 | 5.14.0-1013.13 |
| ubuntu/linux-oem-5.17 | <5.16~ | 5.16~ |
| ubuntu/linux-oem-5.6 | <5.16~ | 5.16~ |
| ubuntu/linux-oem-osp1 | <5.16~ | 5.16~ |
| ubuntu/linux-oracle | <4.15.0-1086.94 | 4.15.0-1086.94 |
| ubuntu/linux-oracle | <5.16~ | 5.16~ |
| ubuntu/linux-oracle | <4.15.0-1086.94~16.04.1 | 4.15.0-1086.94~16.04.1 |
| ubuntu/linux-oracle | <5.13.0-1016.20 | 5.13.0-1016.20 |
| ubuntu/linux-oracle | <5.4.0-1062.66 | 5.4.0-1062.66 |
| ubuntu/linux-oracle-5.0 | <5.16~ | 5.16~ |
| ubuntu/linux-oracle-5.11 | <5.16~ | 5.16~ |
| ubuntu/linux-oracle-5.11 | <5.11.0-1028.31~20.04.1 | 5.11.0-1028.31~20.04.1 |
| ubuntu/linux-oracle-5.13 | <5.13.0-1016.20~20.04.1 | 5.13.0-1016.20~20.04.1 |
| ubuntu/linux-oracle-5.13 | <5.16~ | 5.16~ |
| ubuntu/linux-oracle-5.3 | <5.16~ | 5.16~ |
| ubuntu/linux-oracle-5.4 | <5.4.0-1062.66~18.04.1 | 5.4.0-1062.66~18.04.1 |
| ubuntu/linux-raspi | <5.4.0-1052.58 | 5.4.0-1052.58 |
| ubuntu/linux-raspi | <5.16~ | 5.16~ |
| ubuntu/linux-raspi | <5.13.0-1016.18 | 5.13.0-1016.18 |
| ubuntu/linux-raspi-5.4 | <5.4.0-1052.58~18.04.1 | 5.4.0-1052.58~18.04.1 |
| ubuntu/linux-raspi-5.4 | <5.16~ | 5.16~ |
| ubuntu/linux-raspi2 | <4.15.0-1102.109 | 4.15.0-1102.109 |
| ubuntu/linux-raspi2 | <5.16~ | 5.16~ |
| ubuntu/linux-raspi2-5.3 | <5.16~ | 5.16~ |
| ubuntu/linux-riscv | <5.16~ | 5.16~ |
| ubuntu/linux-riscv | <5.13.0-1011.12 | 5.13.0-1011.12 |
| ubuntu/linux-riscv-5.11 | <5.16~ | 5.16~ |
| ubuntu/linux-riscv-5.8 | <5.16~ | 5.16~ |
| ubuntu/linux-snapdragon | <4.15.0-1119.128 | 4.15.0-1119.128 |
| ubuntu/linux-snapdragon | <5.16~ | 5.16~ |
| ubuntu/linux-aws-5.0 | <5.16~ | 5.16~ |
| ubuntu/linux-aws | <4.15.0-1119.127 | 4.15.0-1119.127 |
| ubuntu/linux-aws | <5.4.0-1064.67 | 5.4.0-1064.67 |
| ubuntu/linux-aws | <5.16~ | 5.16~ |
| ubuntu/linux-aws | <4.4.0-1109.115 | 4.4.0-1109.115 |
| ubuntu/linux-aws | <4.4.0-1145.160 | 4.4.0-1145.160 |
| ubuntu/linux-aws-5.11 | <5.16~ | 5.16~ |
| ubuntu/linux-aws-5.3 | <5.16~ | 5.16~ |
| ubuntu/linux-aws-5.4 | <5.4.0-1064.67~18.04.1 | 5.4.0-1064.67~18.04.1 |
| ubuntu/linux-aws-5.4 | <5.16~ | 5.16~ |
| ubuntu/linux-aws-5.8 | <5.16~ | 5.16~ |
| ubuntu/linux-aws-hwe | <5.16~ | 5.16~ |
| ubuntu/linux-aws-hwe | <4.15.0-1119.126~16.04.2 | 4.15.0-1119.126~16.04.2 |
| ubuntu/linux-azure-4.15 | <5.16~ | 5.16~ |
| ubuntu/linux-azure-4.15 | <4.15.0-1130.143 | 4.15.0-1130.143 |
| ubuntu/linux-azure-5.11 | <5.16~ | 5.16~ |
| ubuntu/linux-azure-5.3 | <5.16~ | 5.16~ |
| ubuntu/linux-azure-5.4 | <5.16~ | 5.16~ |
| ubuntu/linux-azure-5.4 | <5.4.0-1068.71~18.04.1 | 5.4.0-1068.71~18.04.1 |
| ubuntu/linux-azure-edge | <5.16~ | 5.16~ |
| ubuntu/linux-bluefield | <5.16~ | 5.16~ |
| ubuntu/linux-azure-5.13 | <5.16~ | 5.16~ |
| ubuntu/linux-azure-5.13 | <5.13.0-1013.15~20.04.1 | 5.13.0-1013.15~20.04.1 |
| ubuntu/linux-aws-5.13 | <5.13.0-1012.13~20.04.1 | 5.13.0-1012.13~20.04.1 |
| ubuntu/linux-aws-5.13 | <5.16~ | 5.16~ |
| ubuntu/linux-azure-fde | <5.16~ | 5.16~ |
| ubuntu/linux-azure-fde | <5.4.0-1068.71 | 5.4.0-1068.71 |
| redhat/kernel | <5.15.3 | 5.15.3 |
| All of | ||
| Apple macOS Big Sur | ||
| Apple macOS Ventura | ||
| All of | ||
| Apple macOS Ventura | ||
| Apple macOS Big Sur | ||
| All of | ||
| Apple macOS Monterey | ||
| Apple macOS Big Sur | ||
| All of | ||
| Netapp H300e | ||
| Netapp H300e Firmware | ||
| All of | ||
| Netapp H500e | ||
| Netapp H500e Firmware | ||
| All of | ||
| Netapp H700e | ||
| Netapp H700e Firmware | ||
| All of | ||
| Apple macOS Monterey | ||
| Apple macOS Monterey | ||
| All of | ||
| Netapp H410c Firmware | ||
| Netapp H410c | ||
| debian/linux | 4.19.249-2 4.19.304-1 5.10.197-1 5.10.205-2 6.1.66-1 6.1.69-1 6.6.13-1 6.6.15-2 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=1999544
- https://lore.kernel.org/lkml/20211115165435.133245729@linuxfoundation.org/
- https://www.openwall.com/lists/oss-security/2021/09/15/4
- https://www.debian.org/security/2022/dsa-5096
- https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html
- https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
- https://security.netapp.com/advisory/ntap-20220318-0009/
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://launchpad.net/bugs/cve/CVE-2021-3752
- https://lore.kernel.org/lkml/20211115165435.133245729%40linuxfoundation.org/
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2004506
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1999544#c12
- https://packages.qa.debian.org/l/linux/news/20211209T191708Z.html
- https://lore.kernel.org/lkml/20210714031733.1395549-1-bobo.shaobowang@huawei.com/
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1999544#c13
- https://lore.kernel.org/lkml/20210714031733.1395549-1-bobo.shaobowang@huawei
- https://access.redhat.com/errata/RHSA-2022:0620
- https://access.redhat.com/errata/RHSA-2022:0622
- https://access.redhat.com/errata/RHSA-2022:1975
- https://access.redhat.com/errata/RHSA-2022:1988
- https://access.redhat.com/security/cve/cve-2021-3752
- https://www.cve.org/CVERecord?id=CVE-2021-3752 https://nvd.nist.gov/vuln/detail/CVE-2021-3752 https://lore.kernel.org/lkml/20211115165435.133245729@linuxfoundation.org/ https://www.openwall.com/lists/oss-security/2021/09/15/4
- https://security-tracker.debian.org/tracker/CVE-2021-3752
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3752
- https://ubuntu.com/security/notices/USN-5265-1
- https://ubuntu.com/security/notices/USN-5267-1
- https://ubuntu.com/security/notices/USN-5268-1
- https://ubuntu.com/security/notices/USN-5267-3
- https://ubuntu.com/security/notices/USN-5505-1
- https://ubuntu.com/security/notices/USN-5513-1
- https://nvd.nist.gov/vuln/detail/CVE-2021-3752
- https://git.kernel.org/linus/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
- https://git.kernel.org/linus/1bff51ea59a9afb67d2dd78518ab0582a54a472c
- https://ubuntu.com/security/CVE-2021-3752
Parent vulnerabilities
(Appears in the following advisories)
- agent/author
- agent/description
- agent/event
- agent/first-publish-date
- agent/last-modified-date
- agent/references
- agent/remedy
- agent/severity
- agent/softwarecombine
- agent/tags
- agent/type
- agent/weakness
- collector/launchpad-cve
- source/Launchpad
- collector/nvd-api
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- collector/nvd-index
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2021-3752
- collector/redhat-cve
- collector/security-tracker-debian
- source/Debian
- collector/usn-cve
- source/Ubuntu
- vendor/linux
- canonical/linux linux kernel
- version/linux linux kernel/2.6.12
- version/linux linux kernel/4.5
- version/linux linux kernel/4.10
- version/linux linux kernel/4.15
- version/linux linux kernel/4.20
- version/linux linux kernel/5.5
- version/linux linux kernel/5.11
- version/linux linux kernel/5.15
- vendor/redhat
- canonical/redhat 3scale
- version/redhat 3scale/2.0
- canonical/redhat virtualization host
- version/redhat virtualization host/4.0
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/34
- canonical/redhat enterprise linux
- version/redhat enterprise linux/7.0
- version/redhat enterprise linux/8.0
- canonical/redhat enterprise linux for real time
- version/redhat enterprise linux for real time/7
- canonical/redhat enterprise linux for real time for nfv
- version/redhat enterprise linux for real time for nfv/7
- vendor/netapp
- canonical/apple macos big sur
- canonical/apple macos ventura
- canonical/apple macos monterey
- canonical/netapp h300e
- canonical/netapp h300e firmware
- canonical/netapp h500e
- canonical/netapp h500e firmware
- canonical/netapp h700e
- canonical/netapp h700e firmware
- canonical/netapp h410c firmware
- canonical/netapp h410c
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/9.0
- version/debian debian linux/10.0
- vendor/oracle
- canonical/oracle communications cloud native core binding support function
- version/oracle communications cloud native core binding support function/22.1.3
- canonical/oracle communications cloud native core network exposure function
- version/oracle communications cloud native core network exposure function/22.1.1
- canonical/oracle communications cloud native core policy
- version/oracle communications cloud native core policy/22.2.0
- canonical/netapp baseboard management controller h300s firmware
- canonical/netapp baseboard management controller h300s
- canonical/netapp baseboard management controller h500s firmware
- canonical/netapp baseboard management controller h500s
- canonical/netapp baseboard management controller h700s firmware
- canonical/netapp baseboard management controller h700s
- canonical/netapp baseboard management controller h300e firmware
- canonical/netapp baseboard management controller h300e
- canonical/netapp baseboard management controller h500e firmware
- canonical/netapp baseboard management controller h500e
- canonical/netapp baseboard management controller h700e firmware
- canonical/netapp baseboard management controller h700e
- canonical/netapp baseboard management controller h410s firmware
- canonical/netapp baseboard management controller h410s
- canonical/netapp baseboard management controller h410c firmware
- canonical/netapp baseboard management controller h410c
- package-manager/redhat
- package-manager/debian
- package-manager/ubuntu