SB2017070720 - Out-of-bounds read in php7 (Alpine package) 



SB2017070720 - Out-of-bounds read in php7 (Alpine package)

Published: July 7, 2017

Security Bulletin ID SB2017070720
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Out-of-bounds read (CVE-ID: CVE-2017-9224)

The vulnerability allows a remote attacker to obtain potentially sensitive information.

The weakness exists in the mbstring due to stack out-of-bounds read in match_at() during regular expression searching. A remote attacker can trigger a logical error involving order of validation and access in match_at() and read arbitrary files on the system.

Successful exploitation of the vulnerability results in information disclosure.

Remediation

Install update from vendor's website.