Description
The sco_sock_recvmsg function in net/bluetooth/sco.c in the Linux kernel before 3.9-rc7 does not initialize a certain length variable, which allows local users to obtain sensitive information from kernel stack memory via a crafted recvmsg or recvfrom system call.
References
- https://github.com/torvalds/linux/commit/c8c499175f7d295ef867335bceb9a76a2c3cdc38
- USN-1837-1 vendor-advisory
- [linux-kernel] 20130414 Linux 3.9-rc7 mailing-list
- [oss-security] 20130414 Linux kernel: more net info leak fixes for v3.9 mailing-list
- openSUSE-SU-2013:1971 vendor-advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c8c499175f7d295ef867335bceb9a76a2c3cdc38