CVE-2023-43635: Github.com/lf edge/eve EVE Seals Vault Key With Vulnerability

MODERATE
Advisory Identifier: GHSA-4jvr-vj2c-8q37
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CVSS 6.7
CWE-522 CWE-327 CWE-328
Published
Advisory Summary

CVE-2023-43635 is a MODERATE (CVSS 6.7) eve seals vault key with vulnerability (CWE-522: Insufficiently Protected Credentials) affecting Github.com/lf edge/eve libraries in the Go ecosystem. The issue involves eve seals vault key with sha1 pcrs. Remediation is available by upgrading affected packages to version 0.0.0-20230519072751-977f42b07fa9.

CVE-2023-43635 at a Glance

CVE Identifier CVE-2023-43635
GHSA Identifier GHSA-4jvr-vj2c-8q37
Severity MODERATE
CVSS v3.1 Base Score 6.7
CWE Classification CWE-522: Insufficiently Protected Credentials
Affected Product Github.com/lf edge/eve
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 6.7

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N).

Attack Vector Physical (AV:P)
Attack Complexity High (AC:H)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Changed (S:C)
Confidentiality High (C:H)
Integrity High (I:H)
Availability None (A:N)

How to Fix CVE-2023-43635

To remediate this vulnerability, upgrade all affected Github.com/lf edge/eve dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

github.com/lf-edge/eve fixed: 0.0.0-20230519072751-977f42b07fa9 
Upgrade github.com/lf-edge/eve to 0.0.0-20230519072751-977f42b07fa9
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for github.com/lf-edge/eve

How to Check if You Are Affected

To determine whether your application is affected by CVE-2023-43635, inspect your project dependencies for Github.com/lf edge/eve:

inspect dependencies for github.com/lf-edge/eve

Analyze the terminal output to locate any version of Github.com/lf edge/eve in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.0.0-20230519072751-977f42b07fa9), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-522: Insufficiently Protected Credentials, where the product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval. In Github.com/lf edge/eve, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Impact The vault key is sealed using SHA1 PCRs instead of SHA256 PCRs Thus an attacker with physical access to an EVE-OS device can try to brute force creating a kernel or rootfs image which produces the same SHA1 PCR but with malicious content. ### Patches Fixed in 9.4.3-lts and 10.1.0 ### Workarounds None

CVE-2023-43635 Affected Github.com/lf edge/eve Versions

1 component(s)
Fixed Versions:
0.0.0-20230519072751-977f42b07fa9
Product / Package Ecosystem Affected Versions Fixed Version
github.com/lf-edge/eve
golang/github.com/lf-edge/eve
Go
< 0.0.0-20230519072751-977f42b07fa9
0.0.0-20230519072751-977f42b07fa9

References

GitHub Advisory / Wiki ADVISORY
https://github.com/lf-edge/eve/security/advisories/GHSA-4jvr-vj2c-8q37
NVD — CVE-2023-43635 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-43635
Github.com/lf edge/eve Security Information SECURITY
https://asrg.io/security-advisories/cve-2023-43635
Github.com/lf edge/eve Security Information SECURITY
https://asrg.io/security-advisories/vault-key-sealed-with-sha1-pcrs
Github.com/lf edge/eve Source Repository REPOSITORY
https://github.com/lf-edge/eve

Frequently Asked Questions

What is CVE-2023-43635?
CVE-2023-43635 is a security vulnerability in Github.com/lf edge/eve involving EVE Seals Vault Key With SHA1 PCRs under CWE-522: Insufficiently Protected Credentials.
Which Github.com/lf edge/eve versions are affected?
Affected versions include releases prior to 0.0.0-20230519072751-977f42b07fa9 across affected packages: github.com/lf-edge/eve.
What version fixes CVE-2023-43635?
Upgrading to 0.0.0-20230519072751-977f42b07fa9 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/lf-edge/eve affected?
Yes, github.com/lf-edge/eve is affected in releases prior to 0.0.0-20230519072751-977f42b07fa9. Upgrade your dependency to 0.0.0-20230519072751-977f42b07fa9 or later.
What is the CVSS score of CVE-2023-43635?
CVE-2023-43635 has a CVSS v3.1 base score of 6.7 (MODERATE) with vector string CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N.
What CWE is associated with CVE-2023-43635?
CVE-2023-43635 is classified under CWE-522: Insufficiently Protected Credentials (The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.).
How can I check Go dependencies for CVE-2023-43635?
Run the dependency tree command: 'inspect dependencies for github.com/lf-edge/eve'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-4jvr-vj2c-8q37",
  "modified" : "2026-02-04T23:12:29Z",
  "published" : "2026-02-04T23:12:29Z",
  "aliases" : [ "CVE-2023-43635" ],
  "summary" : "EVE Seals Vault Key With SHA1 PCRs",
  "details" : "### Impact\n\nThe vault key is sealed using SHA1 PCRs instead of SHA256 PCRs\n\nThus an attacker with physical access to an EVE-OS device can try to brute force creating a kernel or rootfs image which produces the same SHA1 PCR but with malicious content.\n\n### Patches\n\nFixed in 9.4.3-lts and 10.1.0\n\n### Workarounds\n\nNone",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/lf-edge/eve"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.0.0-20230519072751-977f42b07fa9"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/lf-edge/eve/security/advisories/GHSA-4jvr-vj2c-8q37"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-43635"
  }, {
    "type" : "WEB",
    "url" : "https://asrg.io/security-advisories/cve-2023-43635"
  }, {
    "type" : "WEB",
    "url" : "https://asrg.io/security-advisories/vault-key-sealed-with-sha1-pcrs"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/lf-edge/eve"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-327", "CWE-328", "CWE-522" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-02-04T23:12:29Z",
    "nvd_published_at" : null
  }
}