CVE Catalog

CVE-2023-3036

HighCVSS 8.6
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

High risk
2.24%

81th percentile - higher than 81% of all known CVEs

Summary

Unchecked reads in the NTP server in versions prior to commit 783490b allow a remote attacker to trigger a panic by sending an NTSAuthenticator packet with extension length longer than the packet contents.

Risk Assessment

An attacker could exploit this vulnerability to destabilize the NTP server, potentially leading to service outages for systems relying on this server.

Recommendation

It is recommended to update to the version containing the fix in commit 783490b or later to mitigate the risk associated with this vulnerability.

Related vulnerabilities

Original NVD description (English source)

An unchecked read in NTP server in github.com/cloudflare/cfnts prior to commit 783490b https://github.com/cloudflare/cfnts/commit/783490b913f05e508a492cd7b02e3c4ec2297b71  enabled a remote attacker to trigger a panic by sending an NTSAuthenticator packet with extension length longer than the packet contents.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS