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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.

Published:Jun 24, 2016

Last Modified:Apr 12, 2025

EPS:Jul 3, 2016

EPSS Score:0.05222

CVSS Score:7.8

Affected Products

Vendor

Product

Action

Vendor

Canonical

Product

Ubuntu Linux

Canonical

Ubuntu Linux

Vendor

Debian

Product

Debian Linux

Debian

Debian Linux

Vendor

Linux

Product

Linux Kernel

Linux

Linux Kernel

Vendor

Novell

Product

Suse Linux Enterprise Desktop

Novell

Suse Linux Enterprise Desktop

Vendor

Novell

Product

Suse Linux Enterprise Live Patching

Novell

Suse Linux Enterprise Live Patching

Vendor

Novell

Product

Suse Linux Enterprise Module For Public Cloud

Novell

Suse Linux Enterprise Module For Public Cloud

Vendor

Novell

Product

Suse Linux Enterprise Real Time Extension

Novell

Suse Linux Enterprise Real Time Extension

Vendor

Novell

Product

Suse Linux Enterprise Server

Novell

Suse Linux Enterprise Server

Vendor

Novell

Product

Suse Linux Enterprise Software Development Kit

Novell

Suse Linux Enterprise Software Development Kit

Vendor

Novell

Product

Suse Linux Enterprise Workstation Extension

Novell

Suse Linux Enterprise Workstation Extension

Vendor

Oracle

Product

Linux

Oracle

Linux

Vendor

Redhat

Product

Enterprise Linux

Redhat

Enterprise Linux

Vendor

Redhat

Product

Enterprise Mrg

Redhat

Enterprise Mrg

Vendor

Redhat

Product

Rhel Extras Rt

Redhat

Rhel Extras Rt

Exploits

http://www.openwall.com/lists/oss-security/2016/09/29/10 https://github.com/nccgroup/TriforceLinuxSyscallFuzzer/tree/master/crash_reports/report_compatIpt http://www.openwall.com/lists/oss-security/2016/09/29/10 https://github.com/nccgroup/TriforceLinuxSyscallFuzzer/tree/master/crash_reports/report_compatIpt https://www.exploit-db.com/exploits/40489 https://www.exploit-db.com/exploits/40435

Common Weakness Enumeration

CWE-20 Improper Input Validation

Common Attack Pattern Enumeration and Classification (CAPEC)

CAPEC-10 Buffer Overflow via Environment Variables

CAPEC-101 Server Side Include (SSI) Injection

CAPEC-104 Cross Zone Scripting

CAPEC-108 Command Line Execution through SQL Injection

CAPEC-109 Object Relational Mapping Injection

CAPEC-110 SQL Injection through SOAP Parameter Tampering

CAPEC-120 Double Encoding

CAPEC-13 Subverting Environment Variable Values

CAPEC-135 Format String Injection

CAPEC-136 LDAP Injection

CAPEC-14 Client-side Injection-induced Buffer Overflow

CAPEC-153 Input Data Manipulation

CAPEC-182 Flash Injection

CAPEC-209 XSS Using MIME Type Mismatch

CAPEC-22 Exploiting Trust in Client

CAPEC-23 File Content Injection

CAPEC-230 Serialized Data with Nested Payloads

CAPEC-231 Oversized Serialized Data Payloads

CAPEC-24 Filter Failure through Buffer Overflow

CAPEC-250 XML Injection

CAPEC-261 Fuzzing for garnering other adjacent user/sensitive data

CAPEC-267 Leverage Alternate Encoding

CAPEC-28 Fuzzing

CAPEC-3 Using Leading 'Ghost' Character Sequences to Bypass Input Filters

CAPEC-31 Accessing/Intercepting/Modifying HTTP Cookies

CAPEC-42 MIME Conversion

CAPEC-43 Exploiting Multiple Input Interpretation Layers

CAPEC-45 Buffer Overflow via Symbolic Links

CAPEC-46 Overflow Variables and Tags

CAPEC-47 Buffer Overflow via Parameter Expansion

CAPEC-473 Signature Spoof

CAPEC-52 Embedding NULL Bytes

CAPEC-53 Postfix, Null Terminate, and Backslash

CAPEC-588 DOM-Based XSS

CAPEC-63 Cross-Site Scripting (XSS)

CAPEC-64 Using Slashes and URL Encoding Combined to Bypass Validation Logic

CAPEC-664 Server Side Request Forgery

CAPEC-67 String Format Overflow in syslog()

CAPEC-7 Blind SQL Injection

CAPEC-71 Using Unicode Encoding to Bypass Validation Logic

CAPEC-72 URL Encoding

CAPEC-73 User-Controlled Filename

CAPEC-78 Using Escaped Slashes in Alternate Encoding

CAPEC-79 Using Slashes in Alternate Encoding

CAPEC-8 Buffer Overflow in an API Call

CAPEC-80 Using UTF-8 Encoding to Bypass Validation Logic

CAPEC-81 Web Server Logs Tampering

CAPEC-83 XPath Injection

CAPEC-85 AJAX Footprinting

CAPEC-88 OS Command Injection

CAPEC-9 Buffer Overflow in Local Command-Line Utilities

Related CVEs

CVE-2026-13476 (CVSS 7.3) — IBM Informix Dynamic Server 14.10, 15.0, and 12.10 could allow an unauthenticated user to execute arbitrary co…

CVE-2026-13367 (CVSS 7.8) — IBM Informix Dynamic Server 14.10, and 15.0 contain a local privilege escalation vulnerability in the oninit s…

CVE-2026-47337 (CVSS 3.3) — Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling …

CVE-2026-47336 (CVSS 3.3) — Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/A…

CVE-2026-47335 (CVSS 5.5) — Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor n…

CVE-2026-47334 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock…

CVE-2026-47333 (CVSS 7.8) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the si…

CVE-2026-47332 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an intern…

CVE-2026-47331 (CVSS 7.8) — Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An…

CVE-2026-47330 (CVSS 3.3) — Ubuntu Linux 6.8, 7.17 and 7.0 contain AppArmor SAUCE patches which can, under certain circumstances, use an u…

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ce683e5f9d045e5d67d1312a42b359cb2ab2a13c

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.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3

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

https://github.com/nccgroup/TriforceLinuxSyscallFuzzer/tree/master/crash_reports/report_compatIpt

https://github.com/torvalds/linux/commit/ce683e5f9d045e5d67d1312a42b359cb2ab2a13c

https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05347541

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

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

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ce683e5f9d045e5d67d1312a42b359cb2ab2a13c

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.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3

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

https://github.com/nccgroup/TriforceLinuxSyscallFuzzer/tree/master/crash_reports/report_compatIpt

https://github.com/torvalds/linux/commit/ce683e5f9d045e5d67d1312a42b359cb2ab2a13c

https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05347541

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

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

Common Vulnerability Scoring System

Attack Vector

Network

Adjacent

Local

Physical

Privileges Required

None

Low

High

User Interaction

None

Required

Scope

Unchanged

Changed

Confidentiality

None

Low

High

Integrity

None

Low

High

Availability

None

Low

High