CVE-2017-3144
Failure to properly clean up closed OMAPI connections can exhaust available sockets
- 5.3MediumCVSS base score
- 72.7%Exploitation in 30 daysEPSS · top 0.5% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
A vulnerability stemming from failure to properly clean up closed OMAPI connections can lead to exhaustion of the pool of socket descriptors available to the DHCP server. Affects ISC DHCP 4.1.0 to 4.1-ESV-R15, 4.2.0 to 4.2.8, 4.3.0 to 4.3.6. Older versions may also be affected but are well beyond their end-of-life (EOL). Releases prior to 4.1.0 have not been tested.
Timeline
ID reserved
By isc
- 2 years later
· 2 years later
Published
- 6 years later
· 6 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| iscCNA (assigner) | 3.0 | Medium5.3 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 72.7% · top 0.5% of all CVEs (9 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.
Affected products
What to do
Workaround: The recommended remedy is to disallow access to the OMAPI control port from unauthorized clients (in accordance with best practices for server operation).
References
6
- RHSA-2018:0158 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- DSA-4133 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 102726 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 1040194 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- USN-3586-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://kb.isc.org/docs/aa-01541 (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2017-12285 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2017-3144)Record last updated .