UBUNTU-CVE-2014-0203

Description

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.

CVSS Metrics

• v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Systems

• ubuntu•linux

  < 3.11.0-12.19 | < 4.2.0-16.19

• ubuntu•linux-aws

  < 4.4.0-1002.2 | < 4.4.0-1001.10

• ubuntu•linux-flo

  < 3.4.0-1.3 | < 3.4.0-5.22

• ubuntu•linux-gke

  < 4.4.0-1003.3

• ubuntu•linux-goldfish

  < 3.4.0-1.9 | < 3.4.0-4.27

• ubuntu•linux-hwe

  < 4.8.0-36.36~16.04.1

• ubuntu•linux-lts-utopic

  < 3.16.0-25.33~14.04.2

• ubuntu•linux-lts-vivid

  < 3.19.0-18.18~14.04.1

• ubuntu•linux-lts-wily

  < 4.2.0-18.22~14.04.1

• ubuntu•linux-lts-xenial

  < 4.4.0-13.29~14.04.1

• ubuntu•linux-mako

  < 3.4.0-3.21 | < 3.4.0-7.40

• ubuntu•linux-manta

  < 3.4.0-4.19

• ubuntu•linux-raspi2

  < 4.2.0-1013.19

• ubuntu•linux-snapdragon

  < 4.4.0-1012.12

References (5)

• https://ubuntu.com/security/CVE-2014-0203
• https://rhn.redhat.com/errata/RHSA-2014-0771.html
• https://ubuntu.com/security/notices/USN-2332-1
• https://ubuntu.com/security/notices/USN-2333-1
• https://www.cve.org/CVERecord?id=CVE-2014-0203