CVE-2014-9296
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
A missing return on error in ntpd's receive function allows remote attackers to trigger unintended association changes via crafted packets.
Vulnerability
The receive function in ntp_proto.c in ntpd before version 4.2.8 fails to return after detecting a certain authentication error, causing execution to continue. This allows crafted packets to trigger unintended association changes. Affected versions: NTP before 4.2.8. [1][3]
Exploitation
An unauthenticated remote attacker can send specially crafted NTP packets to a vulnerable ntpd instance. The missing return on error means the code continues processing despite authentication failure, enabling the attacker to manipulate associations. [1][4]
Impact
Successful exploitation could allow an attacker to cause an unintended association change, potentially leading to denial of service or other unspecified impacts. The Cisco advisory notes that this vulnerability is part of a set that could allow remote code execution or DoS, but for this specific CVE the impact is limited to association manipulation. [1][4]
Mitigation
The vulnerability is fixed in NTP version 4.2.8, released on December 19, 2014. Users should upgrade to 4.2.8 or later. Cisco and HP have released advisories with patches. No workaround is mentioned in the references. [1][2][3][4]
AI Insight generated on May 23, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
3Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
19- bk1.ntp.org/ntp-dev/nvdExploit
- support.ntp.org/bin/view/Main/SecurityNoticenvdVendor Advisory
- www.kb.cert.org/vuls/id/852879nvdThird Party AdvisoryUS Government Resource
- advisories.mageia.org/MGASA-2014-0541.htmlnvd
- bugs.ntp.org/show_bug.cginvd
- lists.opensuse.org/opensuse-security-announce/2014-12/msg00020.htmlnvd
- marc.infonvd
- marc.infonvd
- marc.infonvd
- rhn.redhat.com/errata/RHSA-2015-0104.htmlnvd
- secunia.com/advisories/62209nvd
- www.mandriva.com/security/advisoriesnvd
- www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.htmlnvd
- www.securityfocus.com/bid/71758nvd
- bugzilla.redhat.com/show_bug.cginvd
- h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplaynvd
- kc.mcafee.com/corporate/indexnvd
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20141222-ntpdnvd
- www.arista.com/en/support/advisories-notices/security-advisories/1047-security-advisory-8nvd
News mentions
0No linked articles in our index yet.