SB2016080527 - Heap-based buffer overflow in libarchive (Alpine package)
Published: August 5, 2016
Security Bulletin ID
SB2016080527
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Heap-based buffer overflow (CVE-ID: CVE-2016-4302)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Heap-based buffer overflow in the parse_codes function in archive_read_support_format_rar.c in libarchive before 3.2.1. A remote attacker can use a RAR file with a zero-sized dictionary. to trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=87822f4ac4adaaafbbee3ffe58ab6eebdc12907e
- https://git.alpinelinux.org/aports/commit/?id=18e265665b4b640f80b99eabc7b585bb91923cd1
- https://git.alpinelinux.org/aports/commit/?id=9d0f5e1e02079c44a9c58169c8b78c743edaf7b8
- https://git.alpinelinux.org/aports/commit/?id=e9bdabd6e101ba083ed00a8ca911517facd8b1c7
- https://git.alpinelinux.org/aports/commit/?id=1245e3e71c664fc180d3a6f17a8aac878007bed2