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Vulnerability Details : CVE-2014-4943 (1 public exploit)

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.
Publish Date : 2014-07-19 Last Update Date : 2020-08-14
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- CVSS Scores & Vulnerability Types

CVSS Score
6.9
Confidentiality Impact Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact Complete (There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Gain privileges
CWE ID 269

- Related OVAL Definitions

Title Definition Id Class Family
DSA-2992-1 -- linux - security update oval:org.mitre.oval:def:26193 unix
ELSA-2014-0923 -- kernel security update (important) oval:org.mitre.oval:def:27297 unix
ELSA-2014-0924 -- kernel security update (important) oval:org.mitre.oval:def:27252 unix
ELSA-2014-1167 -- kernel security and bug fix update (Important) oval:org.mitre.oval:def:26523 unix
ELSA-2014-1281 -- kernel security and bug fix update (Moderate) oval:org.mitre.oval:def:26905 unix
ELSA-2014-3046 -- unbreakable enterprise kernel security update (important) oval:org.mitre.oval:def:27200 unix
ELSA-2014-3047 -- unbreakable enterprise kernel security update (important) oval:org.mitre.oval:def:26617 unix
ELSA-2014-3048 -- unbreakable enterprise kernel security update (important) oval:org.mitre.oval:def:27341 unix
ELSA-2014-3049 -- unbreakable enterprise kernel security update (important) oval:org.mitre.oval:def:26514 unix
RHSA-2014:0923: kernel security update (Important) oval:org.mitre.oval:def:24485 unix
RHSA-2014:0923: kernel security update (Important) oval:com.redhat.rhsa:def:20140923 unix
RHSA-2014:0924: kernel security update (Important) oval:com.redhat.rhsa:def:20140924 unix
RHSA-2014:0924: kernel security update (Important) oval:org.mitre.oval:def:25359 unix
SUSE-SU-2014:1138-1 -- Security update for the Linux Kernel oval:org.mitre.oval:def:26571 unix
SUSE-SU-2014:1316-1 -- Security update for Linux kernel (important) oval:org.mitre.oval:def:27719 unix
SUSE-SU-2014:1319-1 -- Security update for Linux kernel (important) oval:org.mitre.oval:def:28126 unix
USN-2281-1 -- linux-ec2 vulnerabilities oval:org.mitre.oval:def:25123 unix
USN-2282-1 -- linux vulnerabilities oval:org.mitre.oval:def:25111 unix
USN-2283-1 -- linux vulnerabilities oval:org.mitre.oval:def:25252 unix
USN-2284-1 -- linux-ti-omap4 vulnerabilities oval:org.mitre.oval:def:25055 unix
USN-2285-1 -- linux-lts-quantal vulnerabilities oval:org.mitre.oval:def:25118 unix
USN-2286-1 -- linux-lts-raring vulnerabilities oval:org.mitre.oval:def:24968 unix
USN-2287-1 -- linux-lts-saucy vulnerabilities oval:org.mitre.oval:def:24584 unix
USN-2288-1 -- linux-lts-trusty vulnerabilities oval:org.mitre.oval:def:25223 unix
USN-2289-1 -- linux vulnerabilities oval:org.mitre.oval:def:25243 unix
USN-2290-1 -- linux vulnerabilities oval:org.mitre.oval:def:25094 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2014-4943

# Product Type Vendor Product Version Update Edition Language
1 OS Debian Debian Linux 7.0 * * * Version Details Vulnerabilities
2 OS Linux Linux Kernel * * * * Version Details Vulnerabilities
3 OS Opensuse Opensuse 11.4 * * * Version Details Vulnerabilities
4 OS Redhat Enterprise Linux Server Aus 6.2 * * * Version Details Vulnerabilities
5 OS Suse Linux Enterprise Desktop 11 SP3 * * Version Details Vulnerabilities
6 OS Suse Linux Enterprise Server 11 SP2 * * Version Details Vulnerabilities
7 OS Suse Linux Enterprise Server 11 SP3 * * Version Details Vulnerabilities
8 OS Suse Linux Enterprise Server 11 SP3 * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Debian Debian Linux 1
Linux Linux Kernel 1
Opensuse Opensuse 1
Redhat Enterprise Linux Server Aus 1
Suse Linux Enterprise Desktop 1
Suse Linux Enterprise Server 3

- References For CVE-2014-4943

http://secunia.com/advisories/60393
SECUNIA 60393
http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.html
SUSE SUSE-SU-2014:1319
Exploit! http://www.exploit-db.com/exploits/36267
EXPLOIT-DB 36267 Linux Kernel PPP-over-L2TP Socket Level Handling - Crash PoC Author:Emeric Nasi Release Date:2015-03-04 (linux) dos
http://osvdb.org/show/osvdb/109277
OSVDB 109277
http://openwall.com/lists/oss-security/2014/07/17/1
MLIST [oss-security] 20140716 CVE-2014-4943: Linux privilege escalation in ppp over l2tp sockets
http://rhn.redhat.com/errata/RHSA-2014-1025.html
REDHAT RHSA-2014:1025
http://www.securitytracker.com/id/1030610
SECTRACK 1030610
http://www.debian.org/security/2014/dsa-2992
DEBIAN DSA-2992
http://secunia.com/advisories/60220
SECUNIA 60220
http://secunia.com/advisories/60380
SECUNIA 60380
http://secunia.com/advisories/60071
SECUNIA 60071
http://linux.oracle.com/errata/ELSA-2014-3048.html CONFIRM
http://linux.oracle.com/errata/ELSA-2014-3047.html CONFIRM
http://secunia.com/advisories/60011
SECUNIA 60011
https://bugzilla.redhat.com/show_bug.cgi?id=1119458 CONFIRM
http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.html
SUSE SUSE-SU-2014:1316
http://linux.oracle.com/errata/ELSA-2014-0924.html CONFIRM
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=3cf521f7dc87c031617fd47e4b7aa2593c2f3daf CONFIRM
https://github.com/torvalds/linux/commit/3cf521f7dc87c031617fd47e4b7aa2593c2f3daf CONFIRM
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html
SUSE SUSE-SU-2015:0481
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html
SUSE openSUSE-SU-2015:0566
http://secunia.com/advisories/59790
SECUNIA 59790
https://exchange.xforce.ibmcloud.com/vulnerabilities/94665
XF linux-kernel-cve20144943-priv-esc(94665)

- Metasploit Modules Related To CVE-2014-4943

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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