CVE-2021-3752
High
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.
SeverityHigh
CVSS7.1
Exploit probability—
Product
Linux Kernel
PublishedFeb 16, 2022
First seenFeb 16, 2022
Weakness typeCWE-416Use after free
How to fix
Update
- linux linux_kernel4.4.293, 4.9.291, 4.14.256, 4.19.218, 5.4.160, 5.10.80, 5.14.19, 5.15.3 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 2.6.12 ≤ v < 4.4.293, 4.5 ≤ v < 4.9.291, 4.10 ≤ v < 4.14.256, 4.15 ≤ v < 4.19.218, 4.20 ≤ v < 5.4.160, 5.5 ≤ v < 5.10.80, 5.11 ≤ v < 5.14.19, 5.15 ≤ v < 5.15.3 | 4.4.293, 4.9.291, 4.14.256, 4.19.218, 5.4.160, 5.10.80, 5.14.19, 5.15.3 |
| redhat 3scale | 2.0 | — |
| redhat virtualization_host | 4.0 | — |
| fedoraproject fedora | 34 | — |
| redhat enterprise_linux | 7.0, 8.0 | — |
| redhat enterprise_linux_for_real_time | 7 | — |
| redhat enterprise_linux_for_real_time_for_nfv | 7 | — |
| netapp h300s_firmware | No range specified | — |
| netapp h500s_firmware | No range specified | — |
| netapp h700s_firmware | No range specified | — |
| netapp h300e_firmware | No range specified | — |
| netapp h500e_firmware | No range specified | — |
| netapp h700e_firmware | No range specified | — |
| netapp h410s_firmware | No range specified | — |
| netapp h410c_firmware | No range specified | — |
| debian debian_linux | 9.0, 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 | — |
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