CVE-2010-4242

CVE-2010-4242 describes a denial-of-service vulnerability in the Linux kernel's HCI UART driver (hci_ldisc.c), specifically affecting versions 2.6.36 and potentially others. The flaw stems from the hci_uart_tty_open function failing to verify a tty's write operation, leading to a NULL pointer dereference. This vulnerability has a CVSS score of 4.0, indicating a low-severity local attack requiring high attack complexity to achieve a complete denial of service. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.