SB2016012725 - Permissions, Privileges, and Access Controls in samba (Alpine package)



SB2016012725 - Permissions, Privileges, and Access Controls in samba (Alpine package)

Published: January 27, 2016

Security Bulletin ID SB2016012725
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2015-5252)

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

vfs.c in smbd in Samba 3.x and 4.x before 4.1.22, 4.2.x before 4.2.7, and 4.3.x before 4.3.3, when share names with certain substring relationships exist, allows remote attackers to bypass intended file-access restrictions via a symlink that points outside of a share.


Remediation

Install update from vendor's website.