CVE Vulnerability

CVE-2020-25742

pci_change_irq_level in hw/pci/pci.c in QEMU before 5.1.1 has a NULL pointer dereference because pci_get_bus() might not return a valid pointer.

2.1 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

3.2 /10

CVSS v3.0 : LOW

V3 Legend

Vector :

Exploitability : 1.5 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope CHANGED

References
Link Resource
https://ruhr-uni-bochum.sciebo.de/s/NNWP2GfwzYKeKwE?path=%2Flsi_nullptr1 Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/09/29/1 Mailing List Third Party Advisory
https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg05294.html Mailing List Patch
https://bugzilla.redhat.com/show_bug.cgi?id=1883178 Issue Tracking Patch
Configurations

Configuration 1

cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
Information

Published : 2020-10-06 03:15

Updated : 2020-10-07 01:32

NVD link : CVE-2020-25742

Mitre link : CVE-2020-25742

Products Affected
No products.
CWE
CWE-476