SB2016110131 - Path traversal in tar (Alpine package)
Published: November 1, 2016
Security Bulletin ID
SB2016110131
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Path traversal (CVE-ID: CVE-2016-6321)
The vulnerability allows a remote non-authenticated attacker to manipulate data.
Directory traversal vulnerability in the safer_name_suffix function in GNU tar 1.14 through 1.29 might allow remote attackers to bypass an intended protection mechanism and write to arbitrary files via vectors related to improper sanitization of the file_name parameter, aka POINTYFEATHER.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=25c0433d9b2f5d1714a20c53a424eb8726bc00e6
- https://git.alpinelinux.org/aports/commit/?id=e37604c4a87ded07554695c98e2fd64157014fc7
- https://git.alpinelinux.org/aports/commit/?id=495cbc5532c7d6c55d91dbc07bc9368bbfcaa4e6
- https://git.alpinelinux.org/aports/commit/?id=fa01d4496c2bb0003b172d926753f5c12f6ea6a8
- https://git.alpinelinux.org/aports/commit/?id=a73cd4a8ba440d4bdda5b814dd9797edc4590bb2
- https://git.alpinelinux.org/aports/commit/?id=869908ea80ed522378401da0df964a1708d46903
- https://git.alpinelinux.org/aports/commit/?id=c6555956db1a880cc0c33e41f49ff0e999797b4f
- https://git.alpinelinux.org/aports/commit/?id=818ffcaac16aeb737182da779ec36ff9bc81f1a6