SB2016080531 - Out-of-bounds read in libarchive (Alpine package)



SB2016080531 - Out-of-bounds read in libarchive (Alpine package)

Published: August 5, 2016

Security Bulletin ID SB2016080531
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Out-of-bounds read (CVE-ID: CVE-2015-8934)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary error in the copy_from_lzss_window function in archive_read_support_format_rar.c. A remote attacker can create a crafted rar file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.


Remediation

Install update from vendor's website.