CVE-2010-4242

Severity: medium (CVSS 4.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2011-01-11 · updated 2026-06-16

Description

The hci_uart_tty_open function in the HCI UART driver (drivers/bluetooth/hci_ldisc.c) in the Linux kernel 2.6.36, and possibly other versions, does not verify whether the tty has a write operation, which allows local users to cause a denial of service (NULL pointer dereference) via vectors related to the Bluetooth driver.

Affected products

Linux kernel: 2.6.36

References

http://git.kernel.org/linus/c19483cc5e56ac5e22dd19cf25ba210ab1537773
http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00002.html
http://secunia.com/advisories/42789
http://secunia.com/advisories/42890
http://secunia.com/advisories/42963
http://secunia.com/advisories/43291
http://secunia.com/advisories/46397
http://www.redhat.com/support/errata/RHSA-2011-0004.html
http://www.redhat.com/support/errata/RHSA-2011-0007.html
http://www.redhat.com/support/errata/RHSA-2011-0162.html
http://www.securityfocus.com/archive/1/520102/100/0/threaded
http://www.securityfocus.com/bid/45014

Get alerted when CVE-2010-4242 or the next vulnerability affects your stack