CVE-2020-25742 Null dereference in n/a
A NULL pointer dereference in QEMU's PCI handling allows attackers to cause a denial of service via crafted inputs.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-25742?
CVE-2020-25742 is a low-severity vulnerability in Qemu Qemu, published on 6 Oct 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-476
Which versions are affected by CVE-2020-25742?
It affects 1 product.
Products include Qemu Qemu.
How do I fix CVE-2020-25742?
No fix has been published for CVE-2020-25742 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-25742 being exploited?
There is no known exploitation of CVE-2020-25742 in the wild and no public exploit code.
Other vulnerabilities in Qemu Qemu
Sources
Also known as DEBIAN-CVE-2020-25742, ECHO-f026-3251-8f2b, GHSA-xxr9-8j75-c68c, UBUNTU-CVE-2020-25742.