CVE-2016-4997

The compat IPT_SO_SET_REPLACE and IP6T_SO_SET_REPLACE setsockopt implementations in the netfilter subsystem in the Linux kernel before 4.6.3 allow local users to gain privileges or cause a denial of service (memory corruption) by leveraging in-container root access to provide a crafted offset value that triggers an unintended decrement.

CVSS v3.1 NVD

7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 NVD

7.2 HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C

EPSS

5.68% chance of exploitation in the next 30 days, 93rd percentile

Published

2016-07-03

Updated

2024-08-06

Metasploit modules (1)

• rapid7/metasploit-framework/blob/master/modules/exploits/linux/local/netfilter_priv_esc_i…

ExploitDB entries (2)

• https://www.exploit-db.com/exploits/40435
• https://www.exploit-db.com/exploits/40489

Security advisories

• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ce683e5f9d045e5…
• http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3
• http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00060.html
• http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00061.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00027.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00048.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00050.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00051.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00052.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00053.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00054.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html
• http://rhn.redhat.com/errata/RHSA-2016-1847.html
• http://rhn.redhat.com/errata/RHSA-2016-1875.html
• http://rhn.redhat.com/errata/RHSA-2016-1883.html
• http://www.debian.org/security/2016/dsa-3607
• http://www.openwall.com/lists/oss-security/2016/06/24/5
• http://www.openwall.com/lists/oss-security/2016/09/29/10
• http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
• http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html
• http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html
• http://www.securityfocus.com/bid/91451
• http://www.securitytracker.com/id/1036171
• http://www.ubuntu.com/usn/USN-3016-1
• http://www.ubuntu.com/usn/USN-3016-2
• http://www.ubuntu.com/usn/USN-3016-3
• http://www.ubuntu.com/usn/USN-3016-4
• http://www.ubuntu.com/usn/USN-3017-1
• http://www.ubuntu.com/usn/USN-3017-2
• http://www.ubuntu.com/usn/USN-3017-3
• http://www.ubuntu.com/usn/USN-3018-1
• http://www.ubuntu.com/usn/USN-3018-2
• http://www.ubuntu.com/usn/USN-3019-1
• http://www.ubuntu.com/usn/USN-3020-1
• https://bugzilla.redhat.com/show_bug.cgi?id=1349722
• nccgroup/TriforceLinuxSyscallFuzzer/tree/master/crash_reports/report_compatIpt
• torvalds/linux/commit/ce683e5f9d045e5d67d1312a42b359cb2ab2a13c
• https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05347541

References

• CVE Record
• NVD entry