Bluetooth: MGMT: validate LTK enc_size on load
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.1%
exploitation probability
0.1%top 97% of all CVEs
observed exploitation
nono source reports it
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.
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/0f37d1e65c6d71ad94ccfb5c602163c525db789dhttps://git.kernel.org/stable/c/257cdb960d8ff6d60bb6461b03c814b6cf0c9e64https://git.kernel.org/stable/c/40ba329e8b4cd2fb11b0caf5e6a543ceaebb6009https://git.kernel.org/stable/c/50fb64defa72a3fecd0af1ca7c6b47b5c5c2b257https://git.kernel.org/stable/c/82f342b3b006ca1d65f4890c05f2ec32fcb808b6https://git.kernel.org/stable/c/b8dbe9648d69059cfe3a28917bfbf7e61efd7f15https://git.kernel.org/stable/c/c34577f517b556fb6ca173d45bf7e766ae2564cehttps://git.kernel.org/stable/c/f71695e81f4cb428f3c7e2138eae88199005b52c