NVD Vulnerability Detail

CVE-2019-3840

Summary	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.
Publication Date	March 27, 2019, 10:29 p.m.
Registration Date	Jan. 26, 2021, 11:42 a.m.
Last Update	Nov. 21, 2024, 1:42 p.m.

Affected software configurations

Configuration1		or higher	or less	more than	less than
cpe:2.3:a:redhat:libvirt::::::::					5.0.0

Related information, measures and tools

No	URL	タグ
1	http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00101.html	Mailing List Third Party Advisory
2	http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00101.html	Mailing List Third Party Advisory
3	http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00105.html	Mailing List Third Party Advisory
4	http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00105.html	Mailing List Third Party Advisory
5	https://access.redhat.com/errata/RHSA-2019:2294
6	https://access.redhat.com/errata/RHSA-2019:2294
7	https://bugzilla.redhat.com/show_bug.cgi?id=1663051	Exploit Issue Tracking Third Party Advisory Vendor Advisory
8	https://bugzilla.redhat.com/show_bug.cgi?id=1663051	Exploit Issue Tracking Third Party Advisory Vendor Advisory
9	https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3840	Exploit Issue Tracking Patch Vendor Advisory
10	https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3840	Exploit Issue Tracking Patch Vendor Advisory
11	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TZRP2BRMI4RYFRPNFTTIAAUOGVN2ORP7/
12	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TZRP2BRMI4RYFRPNFTTIAAUOGVN2ORP7/
13	https://www.redhat.com/archives/libvir-list/2019-January/msg00241.html	Exploit Vendor Advisory
14	https://www.redhat.com/archives/libvir-list/2019-January/msg00241.html	Exploit Vendor Advisory

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-476	NULL ポインタデリファレンス	https://cwe.mitre.org/data/definitions/476.html

JVN Vulnerability Information

libvirt における NULL ポインタデリファレンスに関する脆弱性

Title	libvirt における NULL ポインタデリファレンスに関する脆弱性
Summary	libvirt には、NULL ポインタデリファレンスに関する脆弱性が存在します。
Possible impacts	サービス運用妨害 (DoS) 状態にされる可能性があります。
Solution	ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。
Publication Date	Jan. 10, 2019, midnight
Registration Date	April 24, 2019, 4:10 p.m.
Last Update	April 24, 2019, 4:10 p.m.

Affected System

レッドハット

libvirt 5.0.0 未満

CVE (情報セキュリティ共通脆弱性識別子)

No	Name	URL
Common Vulnerabilities and Exposures (CVE)
1	CVE-2019-3840	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3840
National Vulnerability Database (NVD)
2	CVE-2019-3840	https://nvd.nist.gov/vuln/detail/CVE-2019-3840

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-476	http://cwe.mitre.org/data/definitions/476.html

ベンダー情報

No	Name	URL
Red Hat Bugzilla
1	Bug 1663051	https://bugzilla.redhat.com/show_bug.cgi?id=1663051
2	Bug 1665228	https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3840
The libvir-list Archives
3	[libvirt] [PATCH] qemu: require reply from guest agent in qemuAgentGetInterfaces	https://www.redhat.com/archives/libvir-list/2019-January/msg00241.html

Change Log

No	Changed Details	Date of change
1	[2019年04月24日] 掲載	April 24, 2019, 4:10 p.m.