Overview
About vulnerability
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: MGMT: validate LTK enc_size on load
Load Long Term Keys stores the user-provided enc_size and later uses it to size fixed-size stack operations when replying to LE LTK requests. An enc_size larger than the 16-byte key buffer can therefore overflow the reply stack buffer.
Reject oversized enc_size values while validating the management LTK record so invalid keys never reach the stored key state.
Details
- Affected product:
- AlmaLinux 9.2 ESU , Amazon Linux 2 ELS , CentOS 7 ELS , CentOS 8.4 ELS , CentOS 8.5 ELS , CentOS Stream 8 ELS , CloudLinux 7 ELS , Debian 10 ELS , Oracle Linux 7 ELS , RHEL 7 ELS , TuxCare 9.6 ESU , Ubuntu 16.04 ELS , Ubuntu 18.04 ELS , Ubuntu 20.04 ELS
- Affected packages:
- kernel @ 5.14.0 (+16 more)
Fixes
KernelCare state
Live-patch status from KernelCare for each operating system.
| Operating system | Status | Covered kernels |
|---|---|---|
| AlmaLinux 10 | Released |
37 kernels
|
| AlmaLinux 8 | Released |
105 kernels
|
| AlmaLinux 9 | Released |
107 kernels
|
| AlmaLinux 9.2 ESU | Released |
21 kernels
|
| AlmaLinux 9.6 ESU | Released |
9 kernels
|
| CentOS 7 ELS | Planned | — |
| CentOS 8 | Released |
21 kernels
|
| CloudLinux OS 7h | Released |
102 kernels
|
| CloudLinux OS 8 | Released |
99 kernels
|
| Debian 11 | Planned | — |
| Debian 11 cloud | Planned | — |
| Debian 12 | Released |
35 kernels
|
| Debian 13 | Planned | — |
| Oracle Linux 8 | Released |
115 kernels
|
| Oracle Linux 9 | Released |
109 kernels
|
| RHEL 10 | Released |
37 kernels
|
| RHEL 8 | Released |
110 kernels
|
| RHEL 9 | Released |
105 kernels
|
| Rocky Linux 10 | Released |
27 kernels
|
| Rocky Linux 8 | Released |
88 kernels
|
| Rocky Linux 9 | Released |
86 kernels
|
| Ubuntu 22.04 | Planned | — |
| Ubuntu 24.04 | Planned | — |