CVE-2020-28588

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.

• CWE-681
• CWE-681

• https://talosintelligence.com/vulnerability_reports/TALOS-2020-1211Exploit, Technical Description, Third Party Advisory
• https://talosintelligence.com/vulnerability_reports/TALOS-2020-1211Exploit, Technical Description, Third Party Advisory

Published

May 10, 2021

Last Modified

Jun 17, 2026

Status

Modified

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