The irda_recvmsg_dgram function in net/irda/af_irda.c in the Linux kernel before...

Vulnerability Description

The irda_recvmsg_dgram function in net/irda/af_irda.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

• http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00018.html
• http://lists.fedoraproject.org/pipermail/package-announce/2013-April/103750.html
• http://www.mandriva.com/security/advisories?name=MDVSA-2013:176
• http://lists.fedoraproject.org/pipermail/package-announce/2013-May/104480.html
• http://www.ubuntu.com/usn/USN-1837-1
• https://lkml.org/lkml/2013/4/14/107
• http://www.openwall.com/lists/oss-security/2013/04/14/3
• http://lists.opensuse.org/opensuse-updates/2013-12/msg00129.html
• https://github.com/torvalds/linux/commit/5ae94c0d2f0bed41d6718be743985d61b7f5c47d
• http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00016.html
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=5ae94c0d2f0bed41d6718be743985d61b7f5c47d