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A NULL pointer dereference flaw in Linux kernel versions prior to 5.11 may be seen if sco_sock_getsockopt function in net/bluetooth/sco.c do not have a sanity check for a socket connection when using BT_SNDMTU/BT_RCVMTU for SCO sockets. This could allow a local attacker with a special user privilege to crash the system (DOS) or leak kernel internal information.

🗓️ 26 Feb 2021 08:00:00Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 1 Views

NULL pointer dereference in Linux kernel before 5.11 via SCO sockets with Bluetooth MTU options; enables local crash or kernel information leakage.

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16 Dec 2021 08:00Current
8.8High risk
Vulners AI Score8.8
CVSS 3.16.7
CVSS 27.2
EPSS0.00115
1