CVE-2010-4242
Published: 10 January 2011
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.
From the Ubuntu security team
Alan Cox discovered that the HCI UART driver did not correctly check if a write operation was available. If the mmap_min-addr sysctl was changed from the Ubuntu default to a value of 0, a local attacker could exploit this flaw to gain root privileges.
Priority
Low
Status
| Package | Release | Status |
|---|---|---|
|
linux Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.37~rc1)
|
|
Patches: Upstream: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=c19483cc5e56ac5e22dd19cf25ba210ab1537773 |
||
|
linux-ec2 Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.37~rc1)
|
|
linux-fsl-imx51 Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.37~rc1)
|
|
linux-lts-backport-maverick Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.37~rc1)
|
|
linux-lts-backport-natty Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.37~rc1)
|
|
linux-mvl-dove Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.37~rc1)
|
|
linux-source-2.6.15 Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.37~rc1)
|
|
linux-ti-omap4 Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.37~rc1)
|
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-4242
- https://ubuntu.com/security/notices/USN-1089-1
- https://ubuntu.com/security/notices/USN-1092-1
- https://ubuntu.com/security/notices/USN-1105-1
- https://ubuntu.com/security/notices/USN-1041-1
- https://ubuntu.com/security/notices/USN-1083-1
- https://ubuntu.com/security/notices/USN-1093-1
- https://ubuntu.com/security/notices/USN-1202-1
- https://ubuntu.com/security/notices/USN-1204-1
- NVD
- Launchpad
- Debian