CVE-2015-1853
6.5 · MEDIUMOverview
CVE-2015-1853 is a medium-severity vulnerability affecting tuxfamily chrony. It was published on December 9, 2019 and has a CVSS 3.1 base score of 6.5 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
chrony before 1.31.1 does not properly protect state variables in authenticated symmetric NTP associations, which allows remote attackers with knowledge of NTP peering to cause a denial of service (inability to synchronize) via random timestamps in crafted NTP data packets.
Remediation
Check the references section for vendor advisories and patches from tuxfamily. Update chrony to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| tuxfamily | chrony | >= 0, < 1.31.1 | Affected |
Frequently Asked Questions
What is CVE-2015-1853?
CVE-2015-1853 is a medium-severity vulnerability affecting tuxfamily chrony. It was published on December 9, 2019 and has a CVSS 3.1 base score of 6.5 (MEDIUM).
How severe is CVE-2015-1853?
This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2015-1853?
Check the references section for vendor advisories and patches from tuxfamily. Update chrony to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2015-1853?
CyberStrike's AI-powered security agents can automatically detect CVE-2015-1853 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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