Description
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.
References (1)
Core 1
Core References
Patch, Third Party Advisory
https://github.com/cloudflare/cfnts/security/advisories/GHSA-pwx6-gw47-96cp
Scores
CVSS v3
8.6
EPSS
0.0059
EPSS Percentile
69.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-119
CWE-125
Status
published
Products (1)
cloudflare/cfnts
< 2023-06-01
Published
Jun 14, 2023
Tracked Since
Feb 18, 2026