Out-of-bounds read in ntp - #VU26240

 

Out-of-bounds read in ntp - #VU26240

Published: March 19, 2020


Vulnerability identifier: #VU26240
CSH Severity: Low
CVSS v4: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in ntp daemon with enabled ntpdc (mode 7). A remote attacker can send short packets to the affected ntp daemon and perform a denial of service attack against the ntp server.


Affected software

ntp
FreeBSD

Remediation

Install updates from vendor's website.

ntp - update to 4.2.8p14

External References

Related Security Bulletins