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CVE-2019-3840

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Date: March 27, 2019

A NULL pointer dereference flaw was discovered in libvirt before version 5.0.0 in the way it gets interface information through the QEMU agent. An attacker in a guest VM can use this flaw to crash libvirtd and cause a denial of service.

Language: C

Severity Score

Related Resources (13)

https://nvd.nist.gov/vuln/detail/CVE-2019-3840
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00101.html
https://bugzilla.redhat.com/show_bug.cgi?id=1663051
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TZRP2BRMI4RYFRPNFTTIAAUOGVN2ORP7/
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3840
https://access.redhat.com/security/cve/CVE-2019-3840
https://www.redhat.com/archives/libvir-list/2019-January/msg00241.html
https://security-tracker.debian.org/tracker/CVE-2019-3840
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00105.html
https://people.canonical.com/~ubuntu-security/cve/CVE-2019-3840
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TZRP2BRMI4RYFRPNFTTIAAUOGVN2ORP7/
https://access.redhat.com/errata/RHSA-2019:2294
https://www.mend.io/vulnerability-database/CVE-2019-3840

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
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): MEDIUM
Authentication (AU): SINGLE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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