NULL pointer dereference in Qemu

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.

EPSS: 0.005 (37.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.2 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L.

Affected products

  • Qemu
  • N/a — versions n/a

Weakness classification (CWE)

References

  • cve@mitre.org (Patch, Mailing List, Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (x_refsource_CONFIRM, Mailing List, Third Party Advisory)
  • cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2020-25742?
CVE-2020-25742 is a low-severity vulnerability in Qemu, classified under NULL Pointer Dereference. CVSS score: 3.2/10. Published 2020-10-06.
How severe is CVE-2020-25742?
Low severity. CVSS v3 base score is 3.2 out of 10.