CVE-2023-1670 Use after free in Kernel
A local attacker can exploit a use-after-free flaw in the Xircom PCMCIA Ethernet driver to crash the system or escalate privileges.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-1670?
CVE-2023-1670 is a high-severity use after free vulnerability in Linux kernel, published on 30 Mar 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A flaw use after free in the Linux kernel Xircom 16-bit PCMCIA (PC-card) Ethernet driver was found.A local user could use this flaw to crash the system or potentially escalate their privileges on the system.
Weakness: CWE-416
Which versions are affected by CVE-2023-1670?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2023-1670?
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-2023-1670 being exploited?
There is no known exploitation of CVE-2023-1670 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-25900, DEBIAN-CVE-2023-1670, GHSA-h569-rw5j-mxrv, UBUNTU-CVE-2023-1670.