CVE-2016-5243

Severity: medium (CVSS 5.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2016-06-27 · updated 2026-06-17
Weakness: CWE-200

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.

Affected products

Linux kernel: through 4.6.3

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

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