CVE-2019-6442 EXPLOIT
6.5
MEDIUM · CVSS 3.0 · EPSS 13.7% (pctl 96)
Patch early
A public exploit exists.
Description
An issue was discovered in NTPsec before 1.1.3. An authenticated attacker can write one byte out of bounds in ntpd via a malformed config request, related to config_remotely in ntp_config.c, yyparse in ntp_parser.tab.c, and yyerror in ntp_parser.y.
Scoring
| CVSS | 6.5 (MEDIUM, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| EPSS | 13.71% — more likely to be exploited than 96% of all CVEs |
| Weakness | CWE-787 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2019-01-16 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| ntpsec | ntpsec |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | NTPsec 1.1.2 - 'config' (Authenticated) Out-of-Bounds Write Denial of Service (PoC) | 2019-01-16 |
References
- https://dumpco.re/blog/ntpsec-bugs
- https://dumpco.re/bugs/ntpsec-authed-oobwrite
- https://github.com/ntpsec/ntpsec/blob/NTPsec_1_1_3/NEWS
- https://www.exploit-db.com/exploits/46178/
- https://dumpco.re/blog/ntpsec-bugs
- https://dumpco.re/bugs/ntpsec-authed-oobwrite
- https://github.com/ntpsec/ntpsec/blob/NTPsec_1_1_3/NEWS
- https://www.exploit-db.com/exploits/46178/
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