CVE-2011-0427

Severity: medium (CVSS 6.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-01-19 · updated 2026-06-16
Weakness: CWE-119

Description

Heap-based buffer overflow in Tor before 0.2.1.29 and 0.2.2.x before 0.2.2.21-alpha allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unspecified vectors.

Affected products

Tor: through 0.2.1.28; 0.0.2, 0.0.2_pre13, 0.0.2_pre14, 0.0.2_pre15, 0.0.2_pre16, 0.0.2_pre17 (+200)

References

http://archives.seul.org/or/announce/Jan-2011/msg00000.html
http://blog.torproject.org/blog/tor-02129-released-security-patches
http://secunia.com/advisories/42905
http://secunia.com/advisories/42907
http://www.debian.org/security/2011/dsa-2148
http://www.securityfocus.com/bid/45832
http://www.securitytracker.com/id?1024980
http://www.vupen.com/english/advisories/2011/0131
http://www.vupen.com/english/advisories/2011/0132
https://exchange.xforce.ibmcloud.com/vulnerabilities/64748
https://gitweb.torproject.org/tor.git/blob/refs/heads/release-0.2.2:/ChangeLog
http://archives.seul.org/or/announce/Jan-2011/msg00000.html

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