CVE-2012-6122

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-10-31 · updated 2026-06-16
Weakness: CWE-120

Description

Buffer overflow in the thread scheduler in Chicken before 4.8.0.1 allows attackers to cause a denial of service (crash) by opening a file descriptor with a large integer value.

Affected products

chicken: before 4.8.0.1 — fixed in 4.8.0.1

How to fix

Upgrade to a fixed version: chicken 4.8.0.1. Check the vendor advisory for mitigations.

References

http://lists.gnu.org/archive/html/chicken-announce/2013-10/msg00000.html
http://www.openwall.com/lists/oss-security/2013/02/08/2
http://www.openwall.com/lists/oss-security/2013/05/08/3
http://www.openwall.com/lists/oss-security/2013/05/09/1
https://access.redhat.com/security/cve/cve-2012-6122
https://lists.nongnu.org/archive/html/chicken-hackers/2012-11/msg00075.html
https://lists.nongnu.org/archive/html/chicken-users/2012-06/msg00031.html
https://security-tracker.debian.org/tracker/CVE-2012-6122
http://lists.gnu.org/archive/html/chicken-announce/2013-10/msg00000.html
http://www.openwall.com/lists/oss-security/2013/02/08/2
http://www.openwall.com/lists/oss-security/2013/05/08/3
http://www.openwall.com/lists/oss-security/2013/05/09/1

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