What’s Vulnerable › Vulnerabilities

CVE-2005-4839

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2005-12-31 · updated 2026-06-16

Description

PureTLS before 0.9b5 does not clear optional Extensions and Algorithm.Parameters values before parsing, which might trigger an information leak of values from earlier certificates.

Affected products

• Claymore Systems Inc Puretls: through 0.9b4

References

• http://www.rtfm.com/puretls/
• http://www1.ietf.org/mail-archive/web/tls/current/msg00229.html
• http://www.rtfm.com/puretls/
• http://www1.ietf.org/mail-archive/web/tls/current/msg00229.html

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