Lasso 2.2.1 and earlier does not properly check the return value from the OpenSSL…
Priority LOW 23CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- —
- Confidentiality · integrity · availability
- None · Partial · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Lasso 2.2.1 and earlier does not properly check the return value from the OpenSSL DSA_verify function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077.
Why it matters now
EPSS 0.01336 71st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:entrouvert:lasso:*:*:*:*:*:*:*:* | up to 2.2.1-0 | Vulnerable | Entr'ouvert |
| cpe:2.3:a:entrouvert:lasso:1.9.9.0:*:*:*:*:*:*:* | 1.9.9.0 | Vulnerable | Entr'ouvert |
| cpe:2.3:a:entrouvert:lasso:2.0.0-1:*:*:*:*:*:*:* | 2.0.0-1 | Vulnerable | Entr'ouvert |
- cpe:2.3:a:entrouvert:lasso:*:*:*:*:*:*:*:* Versions up to 2.2.1-0 Vulnerable ·Entr'ouvert
- cpe:2.3:a:entrouvert:lasso:1.9.9.0:*:*:*:*:*:*:* Versions 1.9.9.0 Vulnerable ·Entr'ouvert
- cpe:2.3:a:entrouvert:lasso:2.0.0-1:*:*:*:*:*:*:* Versions 2.0.0-1 Vulnerable ·Entr'ouvert
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2009-0050
- 2026-10-03 Alias added: GHSA-7ccf-7vx8-76vm
References
More Entr'ouvert Lasso vulnerabilities
- TI-2025-29740 Type confusion in Entr'ouvert Lasso CVSS 3.1CRITICAL 9.8
- TI-2015-01601 The prefix variable in the get_or_define_ns function in Lasso before commit… CVSS 3.0HIGH 7.5
- TI-2021-09336 Lasso all versions prior to 2.7.0 has improper verification of a cryptographic signature. CVSS 3.1HIGH 7.5
- TI-2025-29429 Memory leak in Entr'ouvert Lasso CVSS 3.1HIGH 7.5
- TI-2025-29376 Reachable assertion in Entr'ouvert Lasso CVSS 3.1HIGH 7.5
- TI-2025-29125 NULL pointer dereference in Entr'ouvert Lasso CVSS 3.1HIGH 7.5
Sources
- CVE-2009-0050 · CVE Program
- CVE-2009-0050 · NVD
- FIRST EPSS
- GHSA-7ccf-7vx8-76vm · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences