CVE-2023-2176 Memory corruption in Kernel

What is CVE-2023-2176?

CVE-2023-2176 is a high-severity memory corruption vulnerability in Linux kernel, published on 20 Apr 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability was found in compare_netdev_and_ip in drivers/infiniband/core/cma.c in RDMA in the Linux Kernel. The improper cleanup results in out-of-boundary read, where a local user can utilize this problem to crash the system or escalation of privilege.

Weakness: CWE-125

Which versions are affected by CVE-2023-2176?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2023-2176?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2023-2176 being exploited?

There is no known exploitation of CVE-2023-2176 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2023-2176, GHSA-mx4p-25w4-ff2f, UBUNTU-CVE-2023-2176.