CVE-2020-25742

low-risk
Published 2020-10-06

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.

Do I need to act?

-
0.04% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.2/10 Low
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Qemu

References (8)

Mailing List http://www.openwall.com/lists/oss-security/2020/09/29/1
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1883178
Mailing List https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg05294.html
Third Party Advisory https://ruhr-uni-bochum.sciebo.de/s/NNWP2GfwzYKeKwE?path=%2Flsi_nullptr1
Mailing List http://www.openwall.com/lists/oss-security/2020/09/29/1
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1883178
Mailing List https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg05294.html
Third Party Advisory https://ruhr-uni-bochum.sciebo.de/s/NNWP2GfwzYKeKwE?path=%2Flsi_nullptr1
17
/ 100
low-risk
Severity 12/34 · Low
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal