CVE-2023-52472 crypto: rsa - add a check for allocation failure

What is CVE-2023-52472?

CVE-2023-52472 is a medium-severity vulnerability in Linux kernel, published on 25 Feb 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

crypto: rsa - add a check for allocation failure

Static checkers insist that the mpi_alloc() allocation can fail so add a check to prevent a NULL dereference. Small allocations like this can't actually fail in current kernels, but adding a check is very simple and makes the static checkers happy.

Weakness: CWE-476

Which versions are affected by CVE-2023-52472?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2023-52472?

Apply the vendor's patch.

Is CVE-2023-52472 being exploited?

There is no known exploitation of CVE-2023-52472 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 BELL-CVE-2023-52472, DEBIAN-CVE-2023-52472, GHSA-pcqc-c89r-492h, UBUNTU-CVE-2023-52472.