GitHub Advisoryadvisory · Go
GHSA-wc42-fcjp-v8vq EVE Doesn't Protect Config Partition with Measured Boot
MEDIUM
Official page ↗
- Aliases
- CVE-2023-43634
- Ecosystem
- Go
- Packages
- github.com/lf-edge/eve
- Severity
- Moderate
- CVSS vector
- CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N
- Weaknesses
- CWE-522, CWE-922
- Reviewed
- 2026-02-04
Affected packages
• Go github.com/lf-edge/eve: < 0.0.0-20230519072751-977f42b07fa9 → fixed in 0.0.0-20230519072751-977f42b07fa9
Description
Impact
Config partition measurement was moved from PCR 13 to PCR 14 in a commit, but PCR 14 was not added to the list of PCRs that seal/unseal the vault key. As a result, an attacker can remove the disk, use another server to modify the files in the config partition, and then re-insert the disk.
Patches
Fixed in EVE version 9.4.3-lts
Workarounds
None (apart from preventing physical access to the device)
Resources
https://help.zededa.com/hc/en-us/articles/43295940828827-TPM-PCR-Index-Security-Implications
https://github.com/lf-edge/eve/commit/d9383a7ee4e1c39f5c8c6d4a63cb2ebd00695e8a
Related
Alias · CVE (1)
- CVE-2023-43634 When sealing/unsealing the “vault” key, a list of PCRs is used, which defines which PCRs are used. vulnerability
References
- https://github.com/lf-edge/eve/security/advisories/GHSA-wc42-fcjp-v8vq web
- https://nvd.nist.gov/vuln/detail/CVE-2023-43634 advisory
- https://asrg.io/security-advisories/config-partition-not-protected-by-measured-boot web
- https://asrg.io/security-advisories/cve-2023-43634 web
- https://github.com/lf-edge/eve package