CVE-2014-4943

Linux Kernel <3.15.6 - Privilege Escalation

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2014-4943. PoCs published by Emeric Nasi, redes-2015.

AI-analyzed exploit summary This PoC demonstrates a local privilege escalation vulnerability in the Linux kernel's PPPoL2TP feature by manipulating socket structures via setsockopt, leading to a kernel panic. It does not include full exploitation but highlights the potential for privilege escalation.

Description

The PPPoL2TP feature in net/l2tp/l2tp_ppp.c in the Linux kernel through 3.15.6 allows local users to gain privileges by leveraging data-structure differences between an l2tp socket and an inet socket.

Exploits (2)

exploitdb WORKING POC
by Emeric Nasi · cdoslinux
https://www.exploit-db.com/exploits/36267

This PoC demonstrates a local privilege escalation vulnerability in the Linux kernel's PPPoL2TP feature by manipulating socket structures via setsockopt, leading to a kernel panic. It does not include full exploitation but highlights the potential for privilege escalation.

Classification
Working Poc 90%
Attack Type
Lpe
Complexity
Moderate
Reliability
Theoretical
Target: Linux kernel through 3.15.6
No auth needed
Prerequisites: Local access to the target system · Kernel version between 3.2.0 and 3.15.6
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec WORKING POC 5 stars
by redes-2015 · poc
https://github.com/redes-2015/l2tp-socket-bug

This repository contains a proof-of-concept exploit for CVE-2014-4943, a local privilege escalation vulnerability in the Linux kernel's PPPoL2TP feature. The exploit leverages data-structure differences between an L2TP socket and an inet socket to trigger a kernel panic or potentially gain elevated privileges.

Classification
Working Poc 90%
Attack Type
Lpe
Complexity
Moderate
Reliability
Theoretical
Target: Linux kernel through 3.15.6
No auth needed
Prerequisites: Local access to the target system · Kernel version between 3.2.0 and 3.15.6
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (23)

Core 23
Core References
Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
http://www.exploit-db.com/exploits/36267
Third Party Advisory x_refsource_confirm
http://linux.oracle.com/errata/ELSA-2014-3047.html
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.html
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1030610
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/60220
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/59790
Third Party Advisory vendor-advisory x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2014-1025.html
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.html
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html
Issue Tracking, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=1119458
Third Party Advisory x_refsource_confirm
http://linux.oracle.com/errata/ELSA-2014-0924.html
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/60393
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/60380
Third Party Advisory x_refsource_confirm
http://linux.oracle.com/errata/ELSA-2014-3048.html
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/94665
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
http://openwall.com/lists/oss-security/2014/07/17/1
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/60011
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2014/dsa-2992
Broken Link vdb-entry x_refsource_osvdb
http://osvdb.org/show/osvdb/109277
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/60071

Scores

EPSS 0.0103
EPSS Percentile 77.9%

Details

CWE
CWE-269
Status published
Products (6)
debian/debian_linux 7.0
linux/linux_kernel 2.6.23 - 3.2.62
opensuse/opensuse 11.4
redhat/enterprise_linux_server_aus 6.2
suse/linux_enterprise_desktop 11 sp3
suse/linux_enterprise_server 11 sp2 (3 CPE variants)
Published Jul 19, 2014
Tracked Since Feb 18, 2026