CVE-2019-3900
No exploitation reported by the sources we read.
- Published2019-04-25
- Fixed in5.2 · 4.19.64 · 4.14.133 · 4.9.190 · 4.4.191 · 3.16.72
- WeaknessCWE-835
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
An infinite loop issue was found in the vhost_net kernel module in Linux Kernel up to and including v5.1-rc6, while handling incoming packets in handle_rx(). It could occur if one end sends packets faster than the other end can process them. A guest user, maybe remote one, could use this flaw to stall the vhost_net kernel thread, resulting in a DoS scenario.
Timeline
dates in UTC- 2019-04-2515:29CVE 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-2019-3900?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-3900?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 |
|---|---|---|---|
| 5.2 | ≥ 4.20, < 5.2 | 5.2 | NVD |
| 4.x | ≥ 4.15, < 4.19.64 | 4.19.64 | NVD |
| 4.x | ≥ 4.10, < 4.14.133 | 4.14.133 | NVD |
| 4.x | ≥ 4.5, < 4.9.190 | 4.9.190 | NVD |
| 4.4 | ≥ 3.17, < 4.4.191 | 4.4.191 | NVD |
| 3.16 | ≥ 2.6.34, < 3.16.72 | 3.16.72 | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 16.4 | = 16.04 | no fix published | NVD |
| 18.4 | = 18.04 | no fix published | NVD |
| 19.4 | = 19.04 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 8.0 | = 8.0 | no fix published | NVD |
| 9.0 | = 9.0 | no fix published | NVD |
| 10.0 | = 10.0 | no fix published | NVD |
11 more products in the sources.
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Fix
- Update Linux linux kernel to 5.2 · 4.19.64 · 4.14.133 · 4.9.190 · 4.4.191 · 3.16.72
Advisories and patches
- packetstormsecurity.comPatch
- bugzilla.redhat.comPatch
- seclists.orgPatch
- www.spinics.netPatch
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
- Published
- 2019-04-25
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2019-3900?
Is CVE-2019-3900 actively exploited?
What is the CVSS score for CVE-2019-3900?
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