DEBIAN-CVE-2021-22212
- Source
- https://security-tracker.debian.org/tracker/CVE-2021-22212
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-22212.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2021-22212
- Upstream
- Published
- 2021-06-08T13:15:07Z
- Modified
- 2025-09-30T03:54:33Z
- Severity
-
- 7.4 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
- Summary
- [none]
- Details
-
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.
- References
Affected packages
Debian:11 / ntpsec
Package
- Name
- ntpsec
- Purl
- pkg:deb/debian/ntpsec?arch=source
Debian:12 / ntpsec
Package
- Name
- ntpsec
- Purl
- pkg:deb/debian/ntpsec?arch=source
Debian:13 / ntpsec
Package
- Name
- ntpsec
- Purl
- pkg:deb/debian/ntpsec?arch=source
Debian:14 / ntpsec
Package
- Name
- ntpsec
- Purl
- pkg:deb/debian/ntpsec?arch=source