Description

The tipc_nl_compat_link_dump function in net/tipc/netlink_compat.c in the Linux kernel through 4.6.3 does not properly copy a certain string, which allows local users to obtain sensitive information from kernel stack memory by reading a Netlink message.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5d2be1422e02ccd697ccfcd45c85b4a26e6178e2

http://www.debian.org/security/2016/dsa-3607

http://www.openwall.com/lists/oss-security/2016/06/03/4

http://www.securityfocus.com/bid/91334

http://www.ubuntu.com/usn/USN-3049-1

http://www.ubuntu.com/usn/USN-3050-1

http://www.ubuntu.com/usn/USN-3051-1

http://www.ubuntu.com/usn/USN-3052-1

http://www.ubuntu.com/usn/USN-3053-1

http://www.ubuntu.com/usn/USN-3054-1

http://www.ubuntu.com/usn/USN-3055-1

http://www.ubuntu.com/usn/USN-3056-1

http://www.ubuntu.com/usn/USN-3057-1

https://bugzilla.redhat.com/show_bug.cgi?id=1343335

https://github.com/torvalds/linux/commit/5d2be1422e02ccd697ccfcd45c85b4a26e6178e2

https://patchwork.ozlabs.org/patch/629100/

Details

Risk Information

CVSS v2

CVSS v3