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CVE-2019-3900

HIGHCVSS 7.7/10EPSS 4.42%

Last modified

CVE-2019-3900 is a high-severity vulnerability rated 7.7/10 on the CVSS scale. 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. EPSS estimates a 4.42% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
7.7/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

EPSS Probability
4.42%

90.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
LinuxLinux Kernel>= 2.6.34, < 3.16.72
LinuxLinux Kernel>= 3.17, < 4.4.191
LinuxLinux Kernel>= 4.5, < 4.9.190
LinuxLinux Kernel>= 4.10, < 4.14.133
LinuxLinux Kernel>= 4.15, < 4.19.64
LinuxLinux Kernel>= 4.20, < 5.2
FedoraprojectFedora29
FedoraprojectFedora30
RedhatEnterprise Linux6.0
RedhatEnterprise Linux7.0
DebianDebian Linux8.0
DebianDebian Linux9.0
DebianDebian Linux10.0
CanonicalUbuntu Linux16.04
CanonicalUbuntu Linux18.04
CanonicalUbuntu Linux19.04
NetappActive Iq Unified Manager For Vmware Vsphere>= 9.5
NetappHci Management NodeAll versions
NetappSnapprotectAll versions
NetappSolidfireAll versions
NetappStorage Replication Adapter For Clustered Data Ontap For Vmware Vsphere>= 7.2
NetappVasa Provider For Clustered Data Ontap>= 7.2
NetappVirtual Storage Console For Vmware Vsphere>= 7.2
NetappCn1610 FirmwareAll versions
OracleSd-Wan Edge8.2
FedoraprojectFedora28

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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 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.
How severe is CVE-2019-3900?
CVE-2019-3900 has a CVSS score of 7.7/10 (HIGH severity). The EPSS model estimates a 4.42% probability of exploitation in the next 30 days.
How do I fix CVE-2019-3900?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-3900?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST