vulnerability

Alpine Linux: CVE-2021-22212: Use of a Broken or Risky Cryptographic Algorithm

Severity
6
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:N)
Published
2021-06-08
Added
2024-08-22
Modified
2024-10-02

Description

ntpkeygen can generate keys that ntpd fails to parse. NTPsec 1.2.0 allows ntpkeygen to generate keys with '#' characters. ntpd then either pads, shortens the key, or fails to load these keys entirely, depending on the key type and the placement of the '#'. This results in the administrator not being able to use the keys as expected or the keys are shorter than expected and easier to brute-force, possibly resulting in MITM attacks between ntp clients and ntp servers. For short AES128 keys, ntpd generates a warning that it is padding them.

Solution

alpine-linux-upgrade-ntpsec
Title
NEW

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