What’s Vulnerable › Vulnerabilities

CVE-2009-0939

• Severity: critical (CVSS 10.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2009-03-18 · updated 2026-06-16

Description

Tor before 0.2.0.34 treats incomplete IPv4 addresses as valid, which has unknown impact and attack vectors related to "Spec conformance," as demonstrated using 192.168.0.

Affected products

• Tor: through 0.2.0.33; 0.2.0.1-alpha, 0.2.0.2-alpha, 0.2.0.3-alpha, 0.2.0.4-alpha, 0.2.0.5-alpha, 0.2.0.6-alpha (+23)

References

• http://archives.seul.org/or/announce/Feb-2009/msg00000.html
• http://secunia.com/advisories/33880
• http://secunia.com/advisories/34583
• http://security.gentoo.org/glsa/glsa-200904-11.xml
• http://www.securityfocus.com/bid/33713
• http://archives.seul.org/or/announce/Feb-2009/msg00000.html
• http://secunia.com/advisories/33880
• http://secunia.com/advisories/34583
• http://security.gentoo.org/glsa/glsa-200904-11.xml
• http://www.securityfocus.com/bid/33713

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