Vulnerability Details : CVE-2023-26554
mstolfp in libntp/mstolfp.c in NTP 4.2.8p15 has an out-of-bounds write when adding a '\0' character. An adversary may be able to attack a client ntpq process, but cannot attack ntpd.
Vulnerability category: Memory Corruption
Exploit prediction scoring system (EPSS) score for CVE-2023-26554
Probability of exploitation activity in the next 30 days: 0.07%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 29 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2023-26554
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
5.6
|
MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L |
2.2
|
3.4
|
NIST |
CWE ids for CVE-2023-26554
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The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2023-26554
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https://github.com/spwpun/ntp-4.2.8p15-cves/blob/main/CVE-2023-26554
ntp-4.2.8p15-cves/CVE-2023-26554 at main · spwpun/ntp-4.2.8p15-cves · GitHubThird Party Advisory
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https://github.com/spwpun/ntp-4.2.8p15-cves/issues/1#issuecomment-1506667321
ntpd is not vulnerable · Issue #1 · spwpun/ntp-4.2.8p15-cves · GitHubThird Party Advisory
Products affected by CVE-2023-26554
- cpe:2.3:a:ntp:ntp:4.2.8:p15:*:*:*:*:*:*