What’s Vulnerable › Vulnerabilities

CVE-2014-0021

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-11-15 · updated 2026-06-17

Description

Chrony before 1.29.1 has traffic amplification in cmdmon protocol

Affected products

• Chrony Project Chrony: before 1.29 — fixed in 1.29
• Debian Linux: 8.0, 9.0, 10.0
• Fedoraproject Fedora: 19, 20

How to fix

Upgrade to a fixed version: Chrony Project Chrony 1.29. Check the vendor advisory for mitigations.

References

• http://lists.fedoraproject.org/pipermail/package-announce/2014-February/127837.html
• http://lists.fedoraproject.org/pipermail/package-announce/2014-February/128753.html
• http://www.openwall.com/lists/oss-security/2014/01/17/9
• http://www.openwall.com/lists/oss-security/2014/01/18/1
• http://www.openwall.com/lists/oss-security/2014/01/18/2
• http://www.openwall.com/lists/oss-security/2014/01/18/3
• http://www.openwall.com/lists/oss-security/2014/01/19/1
• http://www.securityfocus.com/bid/65035
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2014-0021
• https://exchange.xforce.ibmcloud.com/vulnerabilities/90925
• https://security-tracker.debian.org/tracker/CVE-2014-0021
• http://lists.fedoraproject.org/pipermail/package-announce/2014-February/127837.html

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