Resource exhaustion in Call-Cc Chicken

CVE-2016-6831

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).

Vulnerability class: DoS (Denial of Service)

EPSS: 0.018 (75.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2016-6831?
CVE-2016-6831 is a high-severity vulnerability in Call-Cc Chicken, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2017-01-10.
How severe is CVE-2016-6831?
High severity. CVSS v3 base score is 7.5 out of 10.