HOME VULNERABILITIESCVE-2016-6831

HIGH

CVE-2016-6831

CWE-400Published: January 10, 2017· Updated: Jun 17, 2026

7.5

CVSS v3.1

Official Description

The "process-execute" and "process-spawn" procedures did not free memory correctly when the execve() call failed, resulting in a memory leak. This could be abused by an attacker to cause resource exhaustion or a denial of service. 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).

Technical Analysis

CVE-2016-6831 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

call-cc1 product(s)

chicken

Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

CVE Program entry

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttp://lists.nongnu.org/archive/html/chicken-announce/2016-08/msg00001.html

PATCHhttp://lists.nongnu.org/archive/html/chicken-announce/2016-08/msg00001.html

ADVISORYhttp://www.securityfocus.com/bid/92550

ADVISORYhttp://www.securityfocus.com/bid/92550

All References (4)

→

http://lists.nongnu.org/archive/html/chicken-announce/2016-08/msg00001.htmlPatch · Vendor Advisory

→

http://www.securityfocus.com/bid/92550Third Party Advisory · VDB Entry

→

http://lists.nongnu.org/archive/html/chicken-announce/2016-08/msg00001.htmlPatch · Vendor Advisory

→

http://www.securityfocus.com/bid/92550Third Party Advisory · VDB Entry

Quick Facts

CVE IDCVE-2016-6831

CVSS Score7.5 / 10

SeverityHIGH

WeaknessCWE-400

CISA KEVNo

Affected1 vendor(s)

PublishedJan 10, 2017

Related CVEs (CWE-400)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2016-6831 in threat intel feeds
→Review IDS/IPS signatures for exploitation attempts

Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.

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