SB2015061533 - Ubuntu update for linux-lts-trusty

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2015061533

SB2015061533 - Ubuntu update for linux-lts-trusty

Published: June 15, 2015 Updated: October 31, 2026

Security Bulletin ID SB2015061533
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Security restrictions bypass (CVE-ID: CVE-2015-1328) Exploited

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

CVSSv4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a local user to execute arbitrary code.

The overlayfs implementation in the linux (aka Linux kernel) package before 3.19.0-21.21 in Ubuntu through 15.04 does not properly check permissions for file creation in the upper filesystem directory, which allows local users to obtain root access by leveraging a configuration in which overlayfs is permitted in an arbitrary mount namespace.


Remediation

Install update from vendor's website.

References