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Last updated: 1/19/2017 7:45:41 AM

CVE Publication rate: 17.23

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National Cyber Awareness System

Vulnerability Summary for CVE-2016-6830

Original release date: 01/10/2017
Last revised: 01/10/2017
Source: US-CERT/NIST

Overview

The "process-execute" and "process-spawn" procedures in CHICKEN Scheme used fixed-size buffers for holding the arguments and environment variables to use in its execve() call. This would allow user-supplied argument/environment variable lists to trigger a buffer overrun. This affects all releases of CHICKEN up to and including 4.11 (it will be fixed in 4.12 and 5.0, which are not yet released).

Impact

CVSS Severity (version 3.0):
CVSS v3 Base Score: 9.8 Critical
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 3.9
CVSS Version 3 Metrics:
Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High
CVSS Severity (version 2.0):
CVSS v2 Base Score: 7.5 HIGH
Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P) (legend)
Impact Subscore: 6.4
Exploitability Subscore: 10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

References to Advisories, Solutions, and Tools

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External Source: BID
Name: 92550
Type: Third Party Advisory; VDB Entry
Hyperlink: http://www.securityfocus.com/bid/92550
External Source: MLIST
Name: [chicken-announce] 20160812 [SECURITY] Buffer overrun in process-execute and process-spawn
Type: Patch; Vendor Advisory
Hyperlink: http://lists.nongnu.org/archive/html/chicken-announce/2016-08/msg00001.html

Vulnerable software and versions

+ Configuration 1
* OR
* cpe:/a:call-cc:chicken:4.11.0 and previous versions

* Denotes Vulnerable Software
Changes related to vulnerability configurations

Technical Details

Vulnerability Type (View All)
CVE Standard Vulnerability Entry http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6830

Change History 1 change record found - show changes