CVE-2016-4998

HIGH

Linux Kernel < 4.5.5 - Memory Corruption

Title source: rule

Description

The IPT_SO_SET_REPLACE setsockopt implementation in the netfilter subsystem in the Linux kernel before 4.6 allows local users to cause a denial of service (out-of-bounds read) or possibly obtain sensitive information from kernel heap memory by leveraging in-container root access to provide a crafted offset value that leads to crossing a ruleset blob boundary.

Exploits (1)

metasploit WORKING POC GOOD

by h00die <[email protected]>, vnik, Jesse Hertz, Tim Newsham · rubypoc

https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/local/netfilter_priv_esc_ipv4.rb

View Code ZIP pw:eip

References (27)

[Third Party Advisory] http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html

[Third Party Advisory] http://www.ubuntu.com/usn/USN-3017-1

[Vendor Advisory] http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html

[Third Party Advisory] http://www.ubuntu.com/usn/USN-3017-3

[Vendor Advisory] http://rhn.redhat.com/errata/RHSA-2016-1847.html

[Mailing List] http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html

[Third Party Advisory] http://www.ubuntu.com/usn/USN-3018-2

[Third Party Advisory] http://www.ubuntu.com/usn/USN-3017-2

[Vendor Advisory] http://rhn.redhat.com/errata/RHSA-2016-1875.html

[Third Party Advisory] http://www.ubuntu.com/usn/USN-3019-1

[Third Party Advisory] http://www.debian.org/security/2016/dsa-3607

[Third Party Advisory] http://www.ubuntu.com/usn/USN-3016-2

[Third Party Advisory] http://www.ubuntu.com/usn/USN-3016-1

[Mailing List] http://www.openwall.com/lists/oss-security/2016/06/24/5

[Third Party Advisory] http://www.ubuntu.com/usn/USN-3018-1

[Third Party Advisory, VDB Entry] http://www.securitytracker.com/id/1036171

[Patch, Vendor Advisory] https://github.com/torvalds/linux/commit/6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91

[Issue Tracking, Third Party Advisory, VDB Entry] https://bugzilla.redhat.com/show_bug.cgi?id=1349886

[Patch] http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91

[Vendor Advisory] http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html

... and 7 more

Scores

CVSS v3 7.1

EPSS 0.0150

EPSS Percentile 81.2%

Attack Vector LOCAL

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

Details

CWE

CWE-119

Status published

Products (6)

canonical/ubuntu_linux 12.04

canonical/ubuntu_linux 14.04

canonical/ubuntu_linux 15.10

canonical/ubuntu_linux 16.04

linux/linux_kernel < 4.5.5

oracle/linux 7

Published Jul 03, 2016

Tracked Since Feb 18, 2026