CVE-2023-31083

Description

An issue was discovered in drivers/bluetooth/hci_ldisc.c in the Linux kernel 6.2. In hci_uart_tty_ioctl, there is a race condition between HCIUARTSETPROTO and HCIUARTGETPROTO. HCI_UART_PROTO_SET is set before hu->proto is set. A NULL pointer dereference may occur.

Category

4.7
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.01%
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://lore.kernel.org/all/CA+UBctC3p49aTgzbVgkSZ2+TQcqq4fPDO7yZitFT5uBPDeCO2g%40mail.gmail.com/
https://security.netapp.com/advisory/ntap-20230929-0003/
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9c33663af9ad115f90c076a1828129a3fbadea98
https://bugzilla.suse.com/show_bug.cgi?id=1210780

Frequently Asked Questions

What is the severity of CVE-2023-31083?
CVE-2023-31083 has been scored as a medium severity vulnerability.
How to fix CVE-2023-31083?
To fix CVE-2023-31083, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-31083 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-31083 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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