What’s Vulnerable › Vulnerabilities

CVE-2012-6123

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% 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-20

Description

Chicken before 4.8.0 does not properly handle NUL bytes in certain strings, which allows an attacker to conduct "poisoned NUL byte attack."

Affected products

• chicken: before 4.8.0 — fixed in 4.8.0
• Debian Linux: 8.0, 9.0, 10.0

How to fix

Upgrade to a fixed version: chicken 4.8.0. Check the vendor advisory for mitigations.

References

• http://www.openwall.com/lists/oss-security/2013/02/08/2
• https://access.redhat.com/security/cve/cve-2012-6123
• https://security-tracker.debian.org/tracker/CVE-2012-6123
• http://www.openwall.com/lists/oss-security/2013/02/08/2
• https://access.redhat.com/security/cve/cve-2012-6123
• https://security-tracker.debian.org/tracker/CVE-2012-6123

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