Description (CNA)
Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. From 2.3.1 to 2.11.0, agile decryption accepts an attacker-controlled spinCount and performs that many password-key derivation iterations before verifier validation. OpenFile reaches agileDecrypt, which passes the unbounded spinCount to convertPasswdToKey before password verification. When a crafted OLE encrypted-workbook header supplies an excessive spinCount and the file is opened, the key-derivation loop performs unbounded attacker-selected work and cannot be cancelled, allowing an attacker to consume a CPU core for an attacker-controlled duration. No fixed version is available as of this review.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| qax-os / excelize | affected >= 2.3.1, <= 2.11.0 |
CWE
CWE-400
References
- https://github.com/qax-os/excelize/security/advisories/GHSA-jrfj-fhj2-jjvm
- https://github.com/qax-os/excelize/pull/2389
- https://github.com/qax-os/excelize/commit/2badfcd5841d0d88b0ffea119f5a2f3c53b4910b
ADP enrichment
No English description supplied.
No references supplied.