CVE-2020-25742

low

Description

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.

References

https://ruhr-uni-bochum.sciebo.de/s/NNWP2GfwzYKeKwE?path=%2Flsi_nullptr1

https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg05294.html

https://bugzilla.redhat.com/show_bug.cgi?id=1883178

http://www.openwall.com/lists/oss-security/2020/09/29/1

Details

Source: Mitre, NVD

Published: 2020-10-06

Updated: 2020-10-07

Risk Information

CVSS v2

Base Score: 2.1

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P

Severity: Low

CVSS v3

Base Score: 3.2

Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L

Severity: Low