CVE-2016-4997

Public Exploit

Description

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.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 5.58% Top 15%
Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory debian.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory kernel.org Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00053.html mailing list third party advisory vendor advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html third party advisory
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00060.html third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-3017-1 third party advisory vendor advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html third party advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html mailing list third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-3017-3 third party advisory vendor advisory
http://rhn.redhat.com/errata/RHSA-2016-1847.html third party advisory vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1349722 issue tracking third party advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html mailing list third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-3018-2 third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00048.html mailing list third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-3017-2 third party advisory vendor advisory
http://rhn.redhat.com/errata/RHSA-2016-1875.html third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-3019-1 third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00027.html mailing list third party advisory vendor advisory
http://www.debian.org/security/2016/dsa-3607 third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-3016-2 third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-3016-1 third party advisory vendor advisory
http://www.openwall.com/lists/oss-security/2016/06/24/5 third party advisory mailing list
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00054.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00051.html mailing list third party advisory vendor advisory
https://www.exploit-db.com/exploits/40435/ exploit vdb entry third party advisory
https://github.com/torvalds/linux/commit/ce683e5f9d045e5d67d1312a42b359cb2ab2a13c third party advisory patch
http://www.ubuntu.com/usn/USN-3018-1 third party advisory vendor advisory
http://www.securitytracker.com/id/1036171 vdb entry third party advisory
https://www.exploit-db.com/exploits/40489/ exploit vdb entry third party advisory
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05347541 third party advisory
http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html third party advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00050.html mailing list third party advisory vendor advisory
http://rhn.redhat.com/errata/RHSA-2016-1883.html third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00052.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html mailing list third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-3016-3 third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00061.html third party advisory vendor advisory
http://www.openwall.com/lists/oss-security/2016/09/29/10 mailing list exploit third party advisory
http://www.ubuntu.com/usn/USN-3016-4 third party advisory vendor advisory
http://www.securityfocus.com/bid/91451 vdb entry third party advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3 vendor advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ce683e5f9d045e5d67d1312a42b359cb2ab2a13c vendor advisory
http://www.ubuntu.com/usn/USN-3020-1 third party advisory vendor advisory
https://github.com/nccgroup/TriforceLinuxSyscallFuzzer/tree/master/crash_reports/report_compatIpt third party advisory exploit
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2016-4997?
CVE-2016-4997 has been scored as a high severity vulnerability.
How to fix CVE-2016-4997?
To fix CVE-2016-4997, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-4997 being actively exploited in the wild?
It is possible that CVE-2016-4997 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~6% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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