Medium severity · published Apr 11, 2023
CVE-2023-26551
mstolfp in libntp/mstolfp.c in NTP 4.2.8p15 has an out-of-bounds write in the cp<cpdec while loop
5.6
CVSS
0.7%
EPSS
No
On KEV
Description
mstolfp in libntp/mstolfp.c in NTP 4.2.8p15 has an out-of-bounds write in the cp<cpdec while loop. An adversary may be able to attack a client ntpq process, but cannot attack ntpd.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NT
Ntp · Ntp
4.2.8 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-26551
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-26551
Third Party Advisory
https://github.com/spwpun/ntp-4.2.8p15-cves/blob/main/CVE-2023-26551
Third Party Advisory
https://github.com/spwpun/ntp-4.2.8p15-cves/issues/1#issuecomment-1506667321
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