CVE-2016-5243 Information

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.

CVSS Vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Reference

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/

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

5.5