CVE•Published 2021-05-10•1 article on news•7 live references•NVD data

CVE-2020-28588

Vulnerability data via CVEDB (Shodan)

CVSS v3.1

4.0

MEDIUM

EPSS percentile

Exploit Prediction Scoring System · top 38% of all CVEs

Description

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.

Timeline

Published 2021-05-10

External references

NVD MITRE Exploit-DB GitHub PoC Sploitus trickest/cve VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2020-28588

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · OS

os:"Linux Kernel"

Hosts Shodan identified as running Linux Kernel.

More intel sources (5)

Shodan report

vuln:CVE-2020-28588

Country / ASN / product breakdown for the vuln query.

Censys

vulnerabilities.cve_id: CVE-2020-28588