CVE-2020-25084 Use after free in n/a
A use-after-free vulnerability in QEMU's USB emulation allows attackers to execute arbitrary code or cause a denial of service.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-25084?
CVE-2020-25084 is a low-severity use after free vulnerability in Debian Debian Linux, published on 25 Sep 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
QEMU 5.0.0 has a use-after-free in hw/usb/hcd-xhci.c because the usb_packet_map return value is not checked.
Weakness: CWE-416
Which versions are affected by CVE-2020-25084?
It affects 2 products.
Products include Debian Debian Linux, Qemu Qemu.
How do I fix CVE-2020-25084?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2020-25084 being exploited?
There is no known exploitation of CVE-2020-25084 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2020-25084, GHSA-xx58-g4hc-mr9f, UBUNTU-CVE-2020-25084.