CVE-2017-9334

Name: CVE-2017-9334
Creator: NVD / NIST
Published: 2017-06-01T05:29:00.233+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.54%

Last modified Jun 17, 2026

CVE-2017-9334 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An incorrect "pair?" check in the Scheme "length" procedure results in an unsafe pointer dereference in all CHICKEN Scheme versions prior to 4.13, which allows an attacker to cause a denial of service by passing an improper list to an application that calls "length" on it.. EPSS estimates a 1.54% chance of exploitation in the next 30 days.

Description

An incorrect "pair?" check in the Scheme "length" procedure results in an unsafe pointer dereference in all CHICKEN Scheme versions prior to 4.13, which allows an attacker to cause a denial of service by passing an improper list to an application that calls "length" on it.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

1.54%

71.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Call-Cc	Chicken	<= 4.12.0

References

http://lists.nongnu.org/archive/html/chicken-announce/2017-05/msg00000.htmlPatch, Third Party Advisory
http://lists.nongnu.org/archive/html/chicken-hackers/2017-05/msg00099.htmlPatch, Third Party Advisory
http://lists.nongnu.org/archive/html/chicken-announce/2017-05/msg00000.htmlPatch, Third Party Advisory
http://lists.nongnu.org/archive/html/chicken-hackers/2017-05/msg00099.htmlPatch, Third Party Advisory

Timeline

Published: Jun 1, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-9334?

How severe is CVE-2017-9334?

CVE-2017-9334 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.54% probability of exploitation in the next 30 days.

How do I fix CVE-2017-9334?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-9334?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST