vulnerability
IBM AIX: ntp_advisory13 (CVE-2020-13817): Multiple vulnerabilities in NTPv4 that impact AIX
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:N/AC:M/Au:N/C:N/I:P/A:P) | Jun 4, 2020 | Oct 27, 2020 | Aug 11, 2025 |
Severity
6
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:P)
Published
Jun 4, 2020
Added
Oct 27, 2020
Modified
Aug 11, 2025
Description
ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows remote attackers to cause a denial of service (daemon exit or system time change) by predicting transmit timestamps for use in spoofed packets. The victim must be relying on unauthenticated IPv4 time sources. There must be an off-path attacker who can query time from the victim's ntpd instance.
Solution
ibm-aix-ntp_advisory13
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