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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-fsl-imx51
Launchpad, Ubuntu, Debian
hardy Does not exist

dapper Does not exist

karmic Ignored
(end of life)
lucid
Released (2.6.31-610.27)
maverick Does not exist

natty Does not exist

upstream
Released (2.6.37~rc1)
linux
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy
Released (2.6.24-29.87)
karmic
Released (2.6.31-23.74)
lucid
Released (2.6.32-27.49)
maverick
Released (2.6.35-25.43)
natty Not vulnerable
(2.6.37-2.9)
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
dapper Does not exist

hardy Does not exist

karmic
Released (2.6.31-308.28)
lucid
Released (2.6.32-311.22)
maverick Ignored
(end of life)
natty Does not exist

upstream
Released (2.6.37~rc1)
linux-lts-backport-maverick
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Does not exist

karmic Does not exist

lucid
Released (2.6.35-25.44~lucid1)
maverick Does not exist

natty Does not exist

upstream
Released (2.6.37~rc1)
linux-lts-backport-natty
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Not vulnerable
(2.6.38-1.27~lucid1)
maverick Does not exist

natty Does not exist

upstream
Released (2.6.37~rc1)
linux-mvl-dove
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Does not exist

karmic Ignored
(end of life)
lucid
Released (2.6.32-213.29)
maverick
Released (2.6.32-414.30)
natty Does not exist

upstream
Released (2.6.37~rc1)
linux-source-2.6.15
Launchpad, Ubuntu, Debian
dapper
Released (2.6.15-57.94)
hardy Does not exist

karmic Does not exist

lucid Does not exist

maverick Does not exist

natty Does not exist

upstream
Released (2.6.37~rc1)
linux-ti-omap4
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Does not exist

karmic Does not exist

lucid Does not exist

maverick
Released (2.6.35-903.23)
natty Not vulnerable
(2.6.38-1201.2)
upstream
Released (2.6.37~rc1)