CVE-2015-1328 Information

Description

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.

CVSS Vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

http://seclists.org/oss-sec/2015/q2/717 http://www.exploit-db.com/exploits/40688/ http://www.securityfocus.com/bid/75206 https://people.canonical.com/~ubuntu-security/cve/2015/CVE-2015-1328.html https://security-tracker.debian.org/tracker/CVE-2015-1328 https://www.exploit-db.com/exploits/37292/

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8