CVE-2019-3900

MEDIUM

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.

References

http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html

http://www.securityfocus.com/bid/108076

https://access.redhat.com/errata/RHSA-2019:1973

https://access.redhat.com/errata/RHSA-2019:2029

https://access.redhat.com/errata/RHSA-2019:2043

https://access.redhat.com/errata/RHSA-2019:3220

https://access.redhat.com/errata/RHSA-2019:3309

https://access.redhat.com/errata/RHSA-2019:3517

https://access.redhat.com/errata/RHSA-2019:3836

https://access.redhat.com/errata/RHSA-2019:3967

https://access.redhat.com/errata/RHSA-2019:4058

https://access.redhat.com/errata/RHSA-2020:0204

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3900

https://lists.debian.org/debian-lts-announce/2019/08/msg00016.html

https://lists.debian.org/debian-lts-announce/2019/08/msg00017.html

https://lists.fedoraproject.org/archives/list/[email protected]/message/AYTZH6QCNITK7353S6RCRT2PQHZSDPXD/

https://lists.fedoraproject.org/archives/list/[email protected]/message/RI3WXXM5URTZSR3RVEKO6MDXDFIKTZ5R/

https://lists.fedoraproject.org/archives/list/[email protected]/message/TOFNJA5NNVXQ6AV6KGZB677JIVXAMJHT/

https://seclists.org/bugtraq/2019/Aug/18

https://seclists.org/bugtraq/2019/Nov/11

https://security.netapp.com/advisory/ntap-20190517-0005/

https://usn.ubuntu.com/4114-1/

https://usn.ubuntu.com/4115-1/

https://usn.ubuntu.com/4116-1/

https://usn.ubuntu.com/4117-1/

https://usn.ubuntu.com/4118-1/

https://www.debian.org/security/2019/dsa-4497

https://www.spinics.net/lists/kernel/msg3111012.html

Details

Source: MITRE

Published: 2019-04-25

Updated: 2020-10-16

Type: CWE-835

Risk Information

CVSS v2.0

Base Score: 6.8

Vector: AV:N/AC:L/Au:S/C:N/I:N/A:C

Impact Score: 6.9

Exploitability Score: 8

Severity: MEDIUM

CVSS v3.0

Base Score: 7.7

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

Impact Score: 4

Exploitability Score: 3.1

Severity: HIGH