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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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://www.oracle.com/security-alerts/cpuApr2021.html

Details

Risk Information

CVSS v2

CVSS v3