CVE-2014-9295
HighMultiple stack-based buffer overflows in ntpd in NTP before 4.2.8 allow remote attackers to execute arbitrary code via a crafted packet, related to (1) the crypto_recv function when the Autokey Authentication feature is used, (2) the ctl_putdata function, and (3) the configure…
Published Dec 20, 2014 · Updated Aug 11, 2026 · Also known as DEBIAN-CVE-2014-9295, UBUNTU-CVE-2014-9295
Key Facts
Patch immediately- CVE-2014-9295 is a high-severity vulnerability (CVSS 7.5 v2) affecting Ntp, ntpdate (amazon), ntp-doc (amazon) and 2 more products.
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 79% probability of exploitation in the next 30 days.
- Fixed versions are available, including Ntp 0:4.2.2p1-18.el5_11, Ntp 0:4.2.6p5-19.el7_0, Ntp 0:4.2.6p5-2.el6_6.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v2
7.5
AV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS (30-day exploit likelihood)
79%
Higher than 99.5% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
None known
Get the full CVE-2014-9295 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
Multiple stack-based buffer overflows in ntpd in NTP before 4.2.8 allow remote attackers to execute arbitrary code via a crafted packet, related to (1) the crypto_recv function when the Autokey Authentication feature is used, (2) the ctl_putdata function, and (3) the configure function.
Affected Products
42 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| NtpNtp | See advisory | 4.2.7 |
| ntpdateamazon | See advisory | 4.2.6p5-2.22.amzn1 |
| ntp-docamazon | See advisory | 4.2.6p5-2.22.amzn1 |
| ntp-perlamazon | See advisory | 4.2.6p5-2.22.amzn1 |
| sntporacle | See advisory | 4.2.6p5-19.el7_0 |
Patched Releases
Ntp
0:4.2.2p1-18.el5_11, 0:4.2.6p5-19.el7_0, 0:4.2.6p5-2.el6_6, 1:4.2.6.p2+dfsg-1+deb6u1, 1:4.2.6.p5+dfsg-2+deb7u1, 1:4.2.6.p5+dfsg-3.2, 1:4.2.6.p5+dfsg-3ubuntu2.14.04.1, 4.2.2p1-18.el5_11, 4.2.4p8-1.20.1, 4.2.4p8-1.24.1, 4.2.4p8-1.26.1, 4.2.6p5-19.el7_0, 4.2.6p5-2.22.amzn1, 4.2.6p5-2.el6_6, 4.2.8p9-1.1, 4.2.7
ntp-doc
4.2.4p8-1.20.1, 4.2.4p8-1.24.1, 4.2.4p8-1.26.1, 4.2.6p5-19.el7_0, 4.2.6p5-2.22.amzn1, 4.2.6p5-2.el6_6, 4.2.8p9-1.1
ntp-perl
4.2.6p5-19.el7_0, 4.2.6p5-2.22.amzn1, 4.2.6p5-2.el6_6
ntpdate
4.2.6p5-19.el7_0, 4.2.6p5-2.22.amzn1, 4.2.6p5-2.el6_6
sntp
4.2.6p5-19.el7_0
Timeline
Publicly disclosed
Dec 20, 2014
Last updated
Aug 11, 2026
Weakness Type
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
- advisoryhttp://cwe.mitre.org/data/definitions/121.html
- advisoryRHSA-2014:2024
- advisoryRHSA-2014:2025
- advisoryRHSA-2015:0104
- advisoryhttps://security-tracker.debian.org/tracker/CVE-2014-9295
FAQ
Common Questions.
Multiple stack-based buffer overflows in ntpd in NTP before 4.2.8 allow remote attackers to execute arbitrary code via a crafted packet, related to (1) the crypto_recv function when the Autokey Authentication feature is used, (2) the ctl_putdata function, and (3) the configure function.
Affected: Ntp; ntpdate (amazon); ntp-doc (amazon), among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including Ntp 0:4.2.2p1-18.el5_11, Ntp 0:4.2.6p5-19.el7_0, Ntp 0:4.2.6p5-2.el6_6.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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