Use After Free in Linux Kernel
CVE-2014-0203
The __do_follow_link function in fs/namei.c in the Linux kernel before 2.6.33 does not properly handle the last pathname component during use of certain filesystems, which allows local users to cause a denial of service (incorrect free operations and system crash) via an open system call.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.005 (43.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 43.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Linux Kernel
- Oracle Linux — versions 5, 6
Weakness classification (CWE)
References
- secunia.com/advisories/59262 (Broken Link, third-party-advisory)
- www.securityfocus.com/bid/68125 (VDB Entry, Third Party Advisory, vdb-entry)
- git.kernel.org/
- secunia.com/advisories/59309 (Broken Link, third-party-advisory)
- secunia.com/advisories/59406 (Broken Link, third-party-advisory)
- mirror.linux.org.au/linux/kernel/v2.6/ChangeLog-2.6.33 (Broken Link)
- linux.oracle.com/errata/ELSA-2014-0771.html (Third Party Advisory)
- secunia.com/advisories/59560 (Broken Link, third-party-advisory)
- linux.oracle.com/errata/ELSA-2014-3043.html (Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Exploit, Patch, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2014-0203?
- CVE-2014-0203 is a medium-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 5.5/10. Published 2014-06-23.
- How severe is CVE-2014-0203?
- Medium severity. CVSS v3 base score is 5.5 out of 10.