Information disclosure in Linux kernel

Published: 2020-04-27 | Updated: 2021-04-28
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-28588
Exploitation vector Local
Public exploit N/A
Vulnerable software
Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Incorrect Conversion between Numeric Types

EUVDB-ID: #VU52687

Risk: Low


CVE-ID: CVE-2020-28588

CWE-ID: CWE-681 - Incorrect Conversion between Numeric Types

Exploit availability: No


The vulnerability allows a local attacker to gain unauthorized access to sensitive information on the system.

The vulnerability exists due to incorrect conversion between numeric types in the /proc/pid/syscall functionality. A local attacker can read /proc/pid/syscall to trigger this vulnerability, leading to the kernel leaking memory contents.


Install updates from vendor's website.

Vulnerable software versions

Linux kernel: 5.1 rc4 - 5.10 rc4

CPE2.3 External links

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?