CVE-2023-0597 Information disclosure in Kernel

What is CVE-2023-0597?

CVE-2023-0597 is a medium-severity vulnerability in Linux kernel, published on 23 Feb 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A flaw possibility of memory leak in the Linux kernel cpu_entry_area mapping of X86 CPU data to memory was found in the way user can guess location of exception stack(s) or other important data. A local user could use this flaw to get access to some important data with expected location in memory.

Weakness: CWE-401, CWE-200

Which versions are affected by CVE-2023-0597?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2023-0597?

Apply the vendor's patch.

Is CVE-2023-0597 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-0597 exists.

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-2023-0597, GHSA-g86r-9849-44wq, ROOT-OS-DEBIAN-11-CVE-2023-0597, ROOT-OS-DEBIAN-12-CVE-2023-0597, UBUNTU-CVE-2023-0597.