CVE-2009-0050 - Vulnerability Details - OpenCVE

Description

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.

Published: 2009-01-07

Score: 4.3 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

OR	cpe:2.3:a:entrouvert:lasso::::::::
	cpe:2.3:a:entrouvert:lasso:1.9.9.0:::::::*
	cpe:2.3:a:entrouvert:lasso:2.0.0-1:::::::*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories

Source	ID	Title
Debian DSA	DSA-1700-1	New lasso packages fix validation bypass
EUVD	EUVD-2009-0059	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.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

Access Vector Network

Access Complexity Medium

Authentication None

Confidentiality Impact None

Integrity Impact Partial

Availability Impact None

This CVE is not in the KEV list.

The EPSS score is 0.00147.

Key SSVC decision points have not yet been added.

References

Link	Providers
http://www.ocert.org/advisories/ocert-2008-016.html
http://www.securityfocus.com/archive/1/499827/100/0/threaded
https://exchange.xforce.ibmcloud.com/vulnerabilities/47837

History

No history.

Subscriptions

Entrouvert Lasso

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2009-01-07T18:00:00.000Z

Updated: 2024-08-07T04:17:10.472Z

Reserved: 2009-01-07T00:00:00.000Z

Link: CVE-2009-0050

Vulnrichment

No data.

NVD

Status : Modified

Published: 2009-01-07T18:30:15.860

Modified: 2026-04-23T00:35:47.467

Link: CVE-2009-0050

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-20

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