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CVE-2019-3900
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…
- 6.3MediumCVSS base score
- 4.3%Exploitation in 30 daysEPSS · top 8.7% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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
ID reserved
By redhat
- 4 months later
· 4 months later
Published
- 5 years later
· 5 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 |
|---|---|---|---|
| redhatCNA (assigner) | 3.0 | Medium6.3 | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | High7.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 4.3% · top 8.7% of all CVEs (11 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.3.
Affected products
References
References29
- 108076 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- FEDORA-2019-87d807d7cb (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- FEDORA-2019-8219efa9f6 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- FEDORA-2019-a6cd583a8d (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- RHSA-2019:1973 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:2043 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:2029 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 20190813 [SECURITY] [DSA 4497-1] linux security update (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- DSA-4497 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- [debian-lts-announce] 20190814 [SECURITY] [DLA 1884-1] linux security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [debian-lts-announce] 20190814 [SECURITY] [DLA 1885-1] linux-4.9 security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- USN-4117-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-4114-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-4115-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-4116-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-4118-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- RHSA-2019:3220 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:3309 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:3517 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 20191108 [slackware-security] Slackware 14.2 kernel (SSA:2019-311-01) (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- RHSA-2019:3836 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:3967 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:4058 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2020:0204 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://security.netapp.com/advisory/ntap-20190517-0005/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://www.oracle.com/security-alerts/cpuApr2021.html (opens in a new tab)x_refsource_MISCx_transferred
- http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html (opens in a new tab)x_refsource_MISCx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3900 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://www.spinics.net/lists/kernel/msg3111012.html (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-2019-13508 (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)
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[](https://cveledger.app/cve/CVE-2019-3900)Record last updated .