Vulnerability CVE-2019-3900
Published: 2019-04-25

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.

Type:

CWE-400

 (Uncontrolled Resource Consumption ('Resource Exhaustion'))

CVSS2 => (AV:N/AC:L/Au:S/C:N/I:N/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.8/10
6.9/10
8/10
Exploit range
Attack complexity
Authentication
Remote
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete
Affected software
Redhat -> Enterprise linux 
Linux -> Linux kernel 
Fedoraproject -> Fedora 

 References:
http://www.securityfocus.com/bid/108076
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3900
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AYTZH6QCNITK7353S6RCRT2PQHZSDPXD/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RI3WXXM5URTZSR3RVEKO6MDXDFIKTZ5R/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TOFNJA5NNVXQ6AV6KGZB677JIVXAMJHT/
https://security.netapp.com/advisory/ntap-20190517-0005/
https://www.spinics.net/lists/kernel/msg3111012.html
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