Vulnerability 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.
CVSS Score
3.2
LOW
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Qemu | Qemu | < 5.1.1 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2020/09/29/1Mailing ListThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1883178Issue TrackingPatchThird Party Advisory
- https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg05294.htmlMailing ListPatchThird Party Advisory
- https://ruhr-uni-bochum.sciebo.de/s/NNWP2GfwzYKeKwE?path=%2Flsi_nullptr1Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/09/29/1Mailing ListThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1883178Issue TrackingPatchThird Party Advisory
- https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg05294.htmlMailing ListPatchThird Party Advisory
- https://ruhr-uni-bochum.sciebo.de/s/NNWP2GfwzYKeKwE?path=%2Flsi_nullptr1Third Party Advisory
FAQ
What is CVE-2020-25742?
CVE-2020-25742 is a vulnerability with a CVSS score of 3.2 (LOW). 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.
How severe is CVE-2020-25742?
CVE-2020-25742 has been rated LOW with a CVSS base score of 3.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-25742?
Check the references section above for vendor advisories and patch information. Affected products include: Qemu Qemu.