Privilege escalation in Linux Kernel
CVE-2014-4943
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.
Vulnerability class: Privilege Escalation
Published · last modified .
CVSS v2 metric
CVSS v2 base score 6.9 (Medium). Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.021 (81.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 81.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: 0.000
Affected products
- Linux Kernel
- Debian Linux — versions 7.0
- openSUSE — versions 11.4
- Red Hat Enterprise Linux Server Aus — versions 6.2
- SUSE Linux Enterprise Desktop — versions 11
- SUSE Linux Enterprise Server — versions 11
Weakness classification (CWE)
Public proof-of-concept exploits
- redes-2015/l2tp-socket-bug
- ARPSyndicate/cvemon
- R0B1NL1N/linux-kernel-exploitation
- Technoashofficial/kernel-exploitation-linux
- kdn111/linux-kernel-exploitation
- khanhdn111/linux-kernel-exploitation
- khanhdz-06/linux-kernel-exploitation
- khanhdz191/linux-kernel-exploitation
- khanhhdz/linux-kernel-exploitation
- khanhhdz06/linux-kernel-exploitation
References
- www.exploit-db.com/exploits/36267 (VDB Entry, Third Party Advisory, exploit)
- linux.oracle.com/errata/ELSA-2014-3047.html (Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.html (vendor-advisory, Mailing List, Third Party Advisory)
- www.securitytracker.com/id/1030610 (VDB Entry, Third Party Advisory, vdb-entry)
- secunia.com/advisories/60220 (Third Party Advisory, third-party-advisory)
- secunia.com/advisories/59790 (Third Party Advisory, third-party-advisory)
- rhn.redhat.com/errata/RHSA-2014-1025.html (vendor-advisory, Third Party Advisory)
- git.kernel.org/ (Third Party Advisory, Broken Link)
- lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.html (vendor-advisory, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html (vendor-advisory, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2014-4943?
- CVE-2014-4943 is a vulnerability in Linux Kernel, classified under Improper Privilege Management. Published 2014-07-19.
- Is CVE-2014-4943 known to be exploited?
- 19 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.