The receive function in ntp_proto.c in ntpd in NTP before 4.2.8 continues to execute…
Priority LOW 39CWE-17Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
The receive function in ntp_proto.c in ntpd in NTP before 4.2.8 continues to execute after detecting a certain authentication error, which might allow remote attackers to trigger an unintended association change via crafted packets.
Why it matters now
EPSS 0.16161 96th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Red Hat: 2 advisories
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:* | up to 4.2.7 | Vulnerable | NTP Project |
- cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:* Versions up to 4.2.7 Vulnerable ·NTP Project
Remediation
Red Hat 2 advisories
- RHSA-2015:0104 Released 2015-01-28 · Red Hat rating Importantntp security update
- Red Hat Enterprise Linux Compute Node Optional EUS (v. 6.5) ntp-4.2.6p5-2.el6_5, ntp-doc-4.2.6p5-2.el6_5, ntp-perl-4.2.6p5-2.el6_5
- Red Hat Enterprise Linux HPC Node EUS (v. 6.5) ntp-4.2.6p5-2.el6_5, ntpdate-4.2.6p5-2.el6_5
- Red Hat Enterprise Linux Server EUS (v. 6.5) ntp-4.2.6p5-2.el6_5, ntpdate-4.2.6p5-2.el6_5
- Red Hat Enterprise Linux Server Optional EUS (v. 6.5) ntp-4.2.6p5-2.el6_5, ntp-doc-4.2.6p5-2.el6_5, ntp-perl-4.2.6p5-2.el6_5
- RHSA-2014:2024 Released 2014-12-20 · Red Hat rating Importantntp security update
- Red Hat Enterprise Linux Client (v. 7) ntp-4.2.6p5-19.el7_0, ntpdate-4.2.6p5-19.el7_0
- Red Hat Enterprise Linux Client Optional (v. 7) ntp-doc-4.2.6p5-19.el7_0, ntp-perl-4.2.6p5-19.el7_0, sntp-4.2.6p5-19.el7_0
- Red Hat Enterprise Linux ComputeNode (v. 7) ntp-4.2.6p5-19.el7_0, ntpdate-4.2.6p5-19.el7_0
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) ntp-doc-4.2.6p5-19.el7_0, ntp-perl-4.2.6p5-19.el7_0, sntp-4.2.6p5-19.el7_0
- Red Hat Enterprise Linux Desktop (v. 6) ntp-4.2.6p5-2.el6_6, ntpdate-4.2.6p5-2.el6_6
- Red Hat Enterprise Linux Desktop Optional (v. 6) ntp-doc-4.2.6p5-2.el6_6, ntp-perl-4.2.6p5-2.el6_6
- Red Hat Enterprise Linux HPC Node (v. 6) ntp-4.2.6p5-2.el6_6, ntpdate-4.2.6p5-2.el6_6
- Red Hat Enterprise Linux HPC Node Optional (v. 6) ntp-doc-4.2.6p5-2.el6_6, ntp-perl-4.2.6p5-2.el6_6
- Red Hat Enterprise Linux Server (v. 6) ntp-4.2.6p5-2.el6_6, ntpdate-4.2.6p5-2.el6_6
- Red Hat Enterprise Linux Server (v. 7) ntp-4.2.6p5-19.el7_0, ntpdate-4.2.6p5-19.el7_0
- Red Hat Enterprise Linux Server Optional (v. 6) ntp-doc-4.2.6p5-2.el6_6, ntp-perl-4.2.6p5-2.el6_6
- Red Hat Enterprise Linux Server Optional (v. 7) ntp-doc-4.2.6p5-19.el7_0, ntp-perl-4.2.6p5-19.el7_0, sntp-4.2.6p5-19.el7_0
- Red Hat Enterprise Linux Workstation (v. 6) ntp-4.2.6p5-2.el6_6, ntpdate-4.2.6p5-2.el6_6
- Red Hat Enterprise Linux Workstation (v. 7) ntp-4.2.6p5-19.el7_0, ntpdate-4.2.6p5-19.el7_0
- Red Hat Enterprise Linux Workstation Optional (v. 6) ntp-doc-4.2.6p5-2.el6_6, ntp-perl-4.2.6p5-2.el6_6
- Red Hat Enterprise Linux Workstation Optional (v. 7) ntp-doc-4.2.6p5-19.el7_0, ntp-perl-4.2.6p5-19.el7_0, sntp-4.2.6p5-19.el7_0
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2014:2024 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2014:2024 |
| Red Hat Enterprise Linux Compute Node Optional EUS (v. 6.5) | Fixed | RHSA-2015:0104 |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2014:2024 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2014:2024 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2014:2024 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2014:2024 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2014:2024 |
| Red Hat Enterprise Linux HPC Node EUS (v. 6.5) | Fixed | RHSA-2015:0104 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2014:2024 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2014:2024 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2014:2024 |
| Red Hat Enterprise Linux Server EUS (v. 6.5) | Fixed | RHSA-2015:0104 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2014:2024 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2014:2024 |
| Red Hat Enterprise Linux Server Optional EUS (v. 6.5) | Fixed | RHSA-2015:0104 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2014:2024 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2014:2024 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2014:2024 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2014:2024 |
Not affected: 1 product
- Red Hat Enterprise Linux 5
Timeline
- 2026-10-02 Threatist record created from CVE-2014-9296
- 2026-10-03 Alias added: GHSA-9prp-4cr8-gqhf
References
Advisory 9
Other 7
- https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04790232
- https://kc.mcafee.com/corporate/index?page=content&id=SB10103
- http://advisories.mageia.org/MGASA-2014-0541.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
- http://bugs.ntp.org/show_bug.cgi?id=2670
- https://bugzilla.redhat.com/show_bug.cgi?id=1176040
- https://www.arista.com/en/support/advisories-notices/security-advisories/1047-security-advisory-8
More NTP Project Ntp vulnerabilities
- TI-2015-06541 Crypto-NAK packets in ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows… CVSS 3.1CRITICAL 9.8
- TI-2014-07543 Multiple stack-based buffer overflows in ntpd in NTP before 4.2.8 allow remote attackers… CVSS 2.0HIGH 7.5
- TI-2013-04524 The monlist feature in ntp_request.c in ntpd in NTP before 4.2.7p26 allows remote… CVSS 2.0MEDIUM 5.0
- TI-2016-06333 The read_mru_list function in NTP before 4.2.8p9 allows remote attackers to cause a… CVSS 3.1HIGH 7.5
- TI-2018-08842 Stack-based buffer overflow in ntpq and ntpdc of NTP version 4.2.8p11 allows an attacker… CVSS 3.0CRITICAL 9.8
- TI-2016-04280 ntpd in NTP before 4.2.8p8 allows remote attackers to cause a denial of service (daemon… CVSS 3.1HIGH 7.5
Sources
- CVE-2014-9296 · CVE Program
- CVE-2014-9296 · NVD
- FIRST EPSS
- GHSA-9prp-4cr8-gqhf · GitHub Advisory Database · CC BY 4.0
- CVE-2014-9296 · Red Hat security data · CC BY 4.0
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