What’s Vulnerable › Vulnerabilities

CVE-2012-2249

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2014-02-03 · updated 2026-06-16

Description

Tor before 0.2.3.23-rc allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a renegotiation attempt that occurs after the initiation of the V3 link protocol.

Affected products

• torproject Tor: through 0.2.3.22; 0.0.2, 0.0.2-pre13, 0.0.2-pre14, 0.0.2-pre15, 0.0.2-pre16, 0.0.2-pre17 (+90)

References

• https://gitweb.torproject.org/tor.git?a=blob_plain%3Bhb=HEAD%3Bf=ChangeLog
• https://gitweb.torproject.org/tor.git?a=blob_plain%3Bhb=HEAD%3Bf=ChangeLog

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