PT-2019-2029 · Qemu+5 · Libvirt+5

Publicado

2019-02-01

·

Atualizado

2019-08-30

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CVE-2019-3840

CVSS v3.1

6.3

Média

VetorAV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions libvirt versions prior to 5.0.0
Description A NULL pointer dereference flaw was discovered in the way libvirt gets interface information through the QEMU agent. This issue can be exploited by an attacker in a guest VM to crash libvirtd, causing a denial of service. The flaw is related to the virJSONValueObjectHasKey() function.
Recommendations For versions prior to 5.0.0, update to version 5.0.0 or later to resolve the issue. As a temporary workaround, consider restricting access to the QEMU agent to minimize the risk of exploitation.

Exploit

Correção

DoS

NULL Pointer Dereference

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Enumeração de Fraquezas

CWE-476

Identificadores relacionados

ALT-PU-2019-1163
BDU:2019-01742
CESA-2019_2294
CVE-2019-3840
ELSA-2019-2294
MGASA-2019-0138
OPENSUSE-SU-2019:1288-1
OPENSUSE-SU-2019_1288-1
OPENSUSE-SU-2019_1294-1
RHSA-2019:2294
RHSA-2019_2294
SUSE-SU-2019:0553-1
SUSE-SU-2019:0936-1
SUSE-SU-2019:0948-1
SUSE-SU-2019:1042-1
SUSE-SU-2019_0553-1
SUSE-SU-2019_0936-1
SUSE-SU-2019_0948-1
SUSE-SU-2019_1042-1
USN-3909-1

Produtos afetados

Alt Linux
Centos
Red Hat
Suse
Ubuntu
Libvirt