Vulnerability in Ntp
CVE-2015-1799
The symmetric-key feature in the receive function in ntp_proto.c in ntpd in NTP 3.x and 4.x before 4.2.8p2 performs state-variable updates upon receiving certain invalid packets, which makes it easier for man-in-the-middle attackers to cause a denial of service (synchronization loss) by spoofing the source IP address of a peer.
EPSS: 0.009 (56.1th percentile) — read the EPSS interpretation.
Affected products
- Ntp
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (vendor-advisory, x_refsource_DEBIAN)
- secalert@redhat.com (x_refsource_CISCO, vendor-advisory)
- secalert@redhat.com (mailing-list, x_refsource_MLIST)
- secalert@redhat.com (x_refsource_UBUNTU, vendor-advisory)
- secalert@redhat.com (US Government Resource, x_refsource_CERT-VN, Third Party Advisory, third-party-advisory)
- secalert@redhat.com (vdb-entry, x_refsource_BID)
- secalert@redhat.com (x_refsource_HP, vendor-advisory)
- secalert@redhat.com (vendor-advisory, x_refsource_FEDORA)
- secalert@redhat.com (x_refsource_CONFIRM, Vendor Advisory)
- secalert@redhat.com (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2015-1799?
- CVE-2015-1799 is a vulnerability in Ntp, classified under CWE-17. Published 2015-04-08.
- Is CVE-2015-1799 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.