{"id":"CVE-2019-3900","details":"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.","modified":"2026-02-24T08:22:19.655842Z","published":"2019-04-25T15:29:00.407Z","related":["MGASA-2019-0221","SUSE-SU-2021:3192-1","SUSE-SU-2021:3206-1","SUSE-SU-2021:3217-1","SUSE-SU-2021:3876-1","SUSE-SU-2021:3969-1","SUSE-SU-2021:3972-1","SUSE-SU-2022:3263-1","SUSE-SU-2022:3294-1","SUSE-SU-2023:0416-1","openSUSE-SU-2021:3876-1"],"references":[{"type":"ADVISORY","url":"http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/108076"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2019:1973"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2019:2029"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2019:2043"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2019:3220"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2019:3309"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2019:3517"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2019:3836"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2019:3967"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2019:4058"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2020:0204"},{"type":"ADVISORY","url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3900"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2019/08/msg00016.html"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2019/08/msg00017.html"},{"type":"ADVISORY","url":"https://seclists.org/bugtraq/2019/Aug/18"},{"type":"ADVISORY","url":"https://seclists.org/bugtraq/2019/Nov/11"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20190517-0005/"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/4114-1/"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/4115-1/"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/4116-1/"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/4117-1/"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/4118-1/"},{"type":"ADVISORY","url":"https://www.debian.org/security/2019/dsa-4497"},{"type":"ADVISORY","url":"https://www.oracle.com/security-alerts/cpuApr2021.html"},{"type":"ADVISORY","url":"https://www.spinics.net/lists/kernel/msg3111012.html"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3900"},{"type":"FIX","url":"http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html"},{"type":"FIX","url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3900"},{"type":"FIX","url":"https://seclists.org/bugtraq/2019/Nov/11"},{"type":"FIX","url":"https://www.spinics.net/lists/kernel/msg3111012.html"},{"type":"ARTICLE","url":"https://lists.debian.org/debian-lts-announce/2019/08/msg00016.html"},{"type":"ARTICLE","url":"https://lists.debian.org/debian-lts-announce/2019/08/msg00017.html"},{"type":"ARTICLE","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AYTZH6QCNITK7353S6RCRT2PQHZSDPXD/"},{"type":"ARTICLE","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RI3WXXM5URTZSR3RVEKO6MDXDFIKTZ5R/"},{"type":"ARTICLE","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TOFNJA5NNVXQ6AV6KGZB677JIVXAMJHT/"},{"type":"ARTICLE","url":"https://seclists.org/bugtraq/2019/Aug/18"},{"type":"ARTICLE","url":"https://seclists.org/bugtraq/2019/Nov/11"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git","events":[{"introduced":"8fe28cb58bcb235034b64cbbb7550a8a43fd88be"},{"fixed":"0ecfebd2b52404ae0c54a878c872bb93363ada36"}]}],"versions":["v4.20","v5.0","v5.0-rc1","v5.0-rc2","v5.0-rc3","v5.0-rc4","v5.0-rc5","v5.0-rc6","v5.0-rc7","v5.0-rc8","v5.1","v5.1-rc1","v5.1-rc2","v5.1-rc3","v5.1-rc4","v5.1-rc5","v5.1-rc6","v5.1-rc7","v5.2-rc1","v5.2-rc2","v5.2-rc3","v5.2-rc4","v5.2-rc5","v5.2-rc6","v5.2-rc7"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-3900.json"}},{"ranges":[{"type":"GIT","repo":"https://github.com/php/php-src","events":[{"introduced":"0"},{"fixed":"845610d1b58fc3b9e4127c8fd277a9d56a9874c2"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-3900.json","vanir_signatures":[{"signature_type":"Line","id":"CVE-2019-3900-36002f5c","digest":{"threshold":0.9,"line_hashes":["327464426238889196584356981377188170857","101440083426345245943307776079864078702","7250392459027424826170198346713761490","198578184096973368507244918955991356980","64878472137351838729477951193816135030","228533533346215657256848981068494218350","79914218643195093118008160016509687952","2803191892239295761199252919223595615","266715588746707832470195593608590689531","637582896613908513761818483785511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