CVE-2020-10774 Information disclosure in kernel

What is CVE-2020-10774?

CVE-2020-10774 is a medium-severity vulnerability in Linux kernel, published on 27 May 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A memory disclosure flaw was found in the Linux kernel's versions before 4.18.0-193.el8 in the sysctl subsystem when reading the /proc/sys/kernel/rh_features file. This flaw allows a local user to read uninitialized values from the kernel memory. The highest threat from this vulnerability is to confidentiality.

Weakness: CWE-805

Which versions are affected by CVE-2020-10774?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2020-10774?

Apply the vendor's patch.

Is CVE-2020-10774 being exploited?

There is no known exploitation of CVE-2020-10774 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 GHSA-469r-46jx-389p, UBUNTU-CVE-2020-10774.