CVE-2015-5219
No exploitation reported by the sources we read.
- Published2017-07-21
- WeaknessCWE-704
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
The ULOGTOD function in ntp.d in SNTP before 4.2.7p366 does not properly perform type conversions from a precision value to a double, which allows remote attackers to cause a denial of service (infinite loop) via a crafted NTP packet.
Timeline
dates in UTC- 2017-07-2114:29CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 18:48 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2015-5219?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2015-5219?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 12.4 | = 12.04 | no fix published | NVD |
| 14.4 | = 14.04 | no fix published | NVD |
| 15.4 | = 15.04 | no fix published | NVD |
| 15.10 | = 15.10 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 21.x | = 21 | no fix published | NVD |
| 22.x | = 22 | no fix published | NVD |
| 23.x | = 23 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 7.0 | = 7.0 | no fix published | NVD |
| 8.0 | = 8.0 | no fix published | NVD |
15 more products in the sources.
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Distribution builds and vendor advisories
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Vendor advisories
Siemens TIM 4R-IE Devices
SIPLUS NET TIM 4R-IE (6AG1800-4BA00-7AA0) · SIPLUS NET TIM 4R-IE DNP3 (6AG1803-4BA00-7AA0) · TIM 4R-IE (6NH7800-4BA00) · +1 more
Fix
- Workaround from the vendor CISA ICSA-21-103-11 · 4 productsDeactivate NTP-based time syncronization of the device, if enabled. The feature is disabled by default.
- Workaround from the vendor CISA ICSA-21-103-11 · 4 productsConfigure an additional firewall to prevent communication to the port udp/123 of an affected device.
- No fix planned, says the vendor CISA ICSA-21-103-11 · 4 productsCurrently no fix is planned
Advisories and patches
- bk1.ntp.orgPatch
- www.openwall.comPatch
- github.comPatch
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
- NVDCVSS 3.17.5read 2026-10-23
- NVDCVSS 2.05read 2026-10-23
- NVDweakness (CWE)CWE-704read 2026-10-23
- FIRST EPSSEPSS score6.1 %2026-10-22
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Published
- 2017-07-21
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2015-5219?
Is CVE-2015-5219 actively exploited?
What is the CVSS score for CVE-2015-5219?
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