CVE-2020-25743 Null dereference in n/a
A NULL pointer dereference in QEMU's IDE PCI emulation allows attackers to cause a denial of service via crafted DMA operations.
- 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-2020-25743?
CVE-2020-25743 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
hw/ide/pci.c in QEMU before 5.1.1 can trigger a NULL pointer dereference because it lacks a pointer check before an ide_cancel_dma_sync call.
Weakness: CWE-476
Which versions are affected by CVE-2020-25743?
It affects 3 products.
Products include Qemu Qemu, Redhat Enterprise Linux, Redhat Openstack Platform.
How do I fix CVE-2020-25743?
No fix has been published for CVE-2020-25743 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-25743 being exploited?
There is no known exploitation of CVE-2020-25743 in the wild and no public exploit code.
Other vulnerabilities in Qemu Qemu
Sources
Also known as DEBIAN-CVE-2020-25743, ECHO-b09a-bd3c-2713, GHSA-qgc2-rv3v-hg6j, UBUNTU-CVE-2020-25743.