CVE-2020-28588: Medium severity linux kernel vulnerability

Published May 10, 2021
·
Updated

An information disclosure vulnerability exists in the /proc/pid/syscall functionality of Linux Kernel 5.1 Stable and 5.4.66. More specifically, this issue has been introduced in v5.1-rc4 (commit 631b7abacd02b88f4b0795c08b54ad4fc3e7c7c0) and is still present in v5.10-rc4, so it’s likely that all versions in between are affected. An attacker can read /proc/pid/syscall to trigger this vulnerability, which leads to the kernel leaking memory contents.

Affected Software

4 affected componentsFixes available
Linux Linux kernel=5.4.66
Linux Linux kernel=5.9.8
Linux Linux kernel=5.10-rc4
debian/linux
5.10.223-15.10.234-16.1.129-16.1.135-16.12.25-16.12.27-1

Event History

May 10, 2021
CVE Published
via MITRE·06:54 PM
Data Sourced
via MITRE·06:54 PM
DescriptionSeverityWeakness
Jan 11, 2024
Data Sourced
via Launchpad·11:48 PM
Description
May 2, 2025
Data Sourced
via Ubuntu·04:25 AM
RemedyDescriptionSeverityAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2020-28588?

The severity of CVE-2020-28588 is classified as medium, indicating potential risks of information disclosure.

2

How do I fix CVE-2020-28588?

To fix CVE-2020-28588, you should upgrade to a vulnerable-free version of the Linux Kernel, such as 5.10.223-1 or later.

3

What versions of Linux Kernel are affected by CVE-2020-28588?

CVE-2020-28588 affects Linux Kernel versions 5.1 to 5.10-rc4, including 5.4.66 and 5.9.8.

4

What kind of vulnerability is CVE-2020-28588?

CVE-2020-28588 is an information disclosure vulnerability in the Linux Kernel's /proc/pid/syscall functionality.

5

Is CVE-2020-28588 still present in newer Linux Kernel versions?

CVE-2020-28588 has been confirmed to be introduced and present up to version 5.10-rc4 of the Linux Kernel.

Contact

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