CVE Database›CVE-2015-7701

CVE-2015-7701

ntp: slow memory leak in CRYPTO_ASSOC

Loading…

Severity

Moderate

Red Hat Product Security

4.3

CVSS 2.0

Review impact separately from score.

Published · October 21, 2015

Updated · May 13, 2026

Description

A memory leak flaw was found in ntpd's CRYPTO_ASSOC. If ntpd was configured to use autokey authentication, an attacker could send packets to ntpd that would, after several days of ongoing attack, cause it to run out of memory.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Disable NTP autokey authentication by removing, or commenting out, all configuration directives beginning with the 'crypto' keyword in your ntp.conf file.

CVSS / CWE

CVSS 2.0 · 4.3
AV:N/AC:M/Au:N/C:N/I:N/A:P

CWE-401 · Missing Release of Memory after Effective Lifetime