GHSA-4c4v-42hc-72p6 — medium GitHub Advisory (CVE-2023-43633) in go/github.com/lf-edge/eve

Description

Impact

On boot, Pillar checks for /config/GlobalConfig/global.json and overrides system configuration if present. This allows enabling debug functions like SSH (debug.enable.ssh), USB keyboard (debug.enable.usb), and VNC access (app.allow.vnc) without triggering the measured boot. Thus, a user with physical access can take out the disk and modify the content of this file in the /config partition and then re-insert the disk.

Patches

Fixed in 10.1.0 and 9.4.3-lts

Workarounds

None

Basic information

Type: reviewed
Severity: medium
Advisory on GitHub: Open advisory ↗
Repository advisory: Open repository advisory ↗
Source code: Browse source ↗
Published (advisory): 2026-02-04 21:36:42 UTC
Updated: 2026-02-04 21:36:43 UTC
GitHub reviewed: 2026-02-04 21:36:42 UTC

Score	Percentile
0.02%	5.99%

CVSS Scores

Base score	Version	Severity	Vector
5.9	3.1	—	`CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N` Click to expand Attack vector (AV:P) Hands-on access—USB, keyboard, opening the case—not something you do purely over the wire. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:L) A normal user session is enough; they don’t have to be admin. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:C) Breaking this can reach past the original component and bite other resources—bigger blast radius. Confidentiality (C:L) Some sensitive info could get out, but not a total data dump. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:N) Service keeps running; no real outage angle.

Identifiers

Type	Value
GHSA	GHSA-4c4v-42hc-72p6 ↗
CVE	CVE-2023-43633 ↗

CWEs

CWE id	Name
CWE-522	Insufficiently Protected Credentials
CWE-922	Insecure Storage of Sensitive Information

Affected packages (1)

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem	Package	Vulnerable range	First patched	Vulnerable functions
go	github.com/lf-edge/eve	< 0.0.0-20220708121648-5fef4d92e758	0.0.0-20220708121648-5fef4d92e758	—

EVE's Debug Functions Unlockable Without Triggering Measured Boot