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CVE-2019-3900

Good to know:

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Date: April 25, 2019

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.

Language: C

Severity Score

Related Resources (38)

https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AYTZH6QCNITK7353S6RCRT2PQHZSDPXD/
https://www.spinics.net/lists/kernel/msg3111012.html
https://www.oracle.com/security-alerts/cpuApr2021.html
https://access.redhat.com/errata/RHSA-2019:2029
https://access.redhat.com/errata/RHSA-2019:1973
https://seclists.org/bugtraq/2019/Nov/11
https://access.redhat.com/errata/RHSA-2019:2043
https://seclists.org/bugtraq/2019/Aug/18
https://lists.debian.org/debian-lts-announce/2019/08/msg00016.html
https://access.redhat.com/security/cve/CVE-2019-3900
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TOFNJA5NNVXQ6AV6KGZB677JIVXAMJHT/
https://access.redhat.com/errata/RHSA-2019:3309
https://nvd.nist.gov/vuln/detail/CVE-2019-3900
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RI3WXXM5URTZSR3RVEKO6MDXDFIKTZ5R/
https://usn.ubuntu.com/4116-1/
https://access.redhat.com/errata/RHSA-2019:3967
https://usn.ubuntu.com/4114-1/
https://usn.ubuntu.com/4118-1/
https://bugzilla.redhat.com/show_bug.cgi?id=1698757
https://access.redhat.com/errata/RHSA-2019:4058
https://security.netapp.com/advisory/ntap-20190517-0005/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AYTZH6QCNITK7353S6RCRT2PQHZSDPXD/
https://security-tracker.debian.org/tracker/CVE-2019-3900
https://access.redhat.com/errata/RHSA-2019:3220
http://www.securityfocus.com/bid/108076
https://access.redhat.com/errata/RHSA-2020:0204
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TOFNJA5NNVXQ6AV6KGZB677JIVXAMJHT/
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3900
http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
https://www.debian.org/security/2019/dsa-4497
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RI3WXXM5URTZSR3RVEKO6MDXDFIKTZ5R/
https://access.redhat.com/errata/RHSA-2019:3517
https://access.redhat.com/errata/RHSA-2019:3836
https://usn.ubuntu.com/4117-1/
https://lists.debian.org/debian-lts-announce/2019/08/msg00017.html
https://usn.ubuntu.com/4115-1/
https://people.canonical.com/~ubuntu-security/cve/CVE-2019-3900
https://www.mend.io/vulnerability-database/CVE-2019-3900

Severity Score

Weakness Type (CWE)

Uncontrolled Resource Consumption

CWE-400

Loop with Unreachable Exit Condition ('Infinite Loop')

CWE-835

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): CHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): SINGLE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): COMPLETE
Additional information:

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