Description
praecis_parse in ntpd/refclock_palisade.c in NTP 4.2.8p15 has an out-of-bounds write. Any attack method would be complex, e.g., with a manipulated GPS receiver.
References (4)
Core 4
Core References
Third Party Advisory
https://github.com/spwpun/ntp-4.2.8p15-cves/blob/main/CVE-2023-26555
Mailing List, Third Party Advisory vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IY2SVYH4MKPAXEYHCCXD3Z6VGINLSVHK/
Mailing List, Third Party Advisory vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y3VHEHHWCTYSB7HVJLYPVK4RPJZ5LX52/
Scores
CVSS v3
6.4
EPSS
0.0052
EPSS Percentile
40.4%
Attack Vector
PHYSICAL
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-787
Status
published
Products (1)
ntp/ntp
4.2.8 p15
Published
Apr 11, 2023
Tracked Since
Feb 18, 2026