CVE-2021-22212: falha de média gravidade em ntpsec
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13Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 4epss 0.5%
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.
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:N
Produtos afetados
NTPsec · ntpsecCVEs relacionadas — ntpsec
No mesmo produto, das mais perigosas para as menos.
CVE-2026-102486HIGHOut-of-bounds Read in ntpsecEPSS 0.5%CVE-2023-4012HIGHIncomplete Internal State Distinction in ntpsecEPSS 0.4%CVE-2026-102483HIGHReachable Assertion in ntpsecEPSS 0.4%CVE-2026-102484MEDIUMHeap-based Buffer Overflow in ntpsecEPSS 0.2%CVE-2026-102485MEDIUMOut-of-bounds Read in ntpsecEPSS 0.2%CVE-2026-18321MEDIUMBuffer Copy without Checking Size of Input ('Classic Buffer Overflow') in ntpsecEPSS 0.1%
Referências
https://bugzilla.redhat.com/show_bug.cgi?id=1955859https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22212.jsonhttps://gitlab.com/NTPsec/ntpsec/-/issues/699https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3GIT2HYL5BQXPGKI6ZDNG473IEQ5WQF2/