CVE-2011-0015

Tor before 0.2.1.29 and 0.2.2.x before 0.2.2.21-alpha does not properly check the amount of compression in zlib-compressed data, which allows remote attackers to cause a denial of service via a large compression factor.

• CWE-20

• http://archives.seul.org/or/announce/Jan-2011/msg00000.htmlPatch
• http://blog.torproject.org/blog/tor-02129-released-security-patchesPatch
• http://secunia.com/advisories/42905Vendor Advisory
• http://secunia.com/advisories/42907Vendor Advisory
• http://www.debian.org/security/2011/dsa-2148
• http://www.openwall.com/lists/oss-security/2011/01/18/7
• http://www.securityfocus.com/bid/45832
• http://www.securitytracker.com/id?1024980
• http://www.vupen.com/english/advisories/2011/0131Vendor Advisory
• http://www.vupen.com/english/advisories/2011/0132Vendor Advisory
• https://gitweb.torproject.org/tor.git/blob/refs/heads/release-0.2.2:/ChangeLogPatch
• https://trac.torproject.org/projects/tor/ticket/2324
• http://archives.seul.org/or/announce/Jan-2011/msg00000.htmlPatch
• http://blog.torproject.org/blog/tor-02129-released-security-patchesPatch
• http://secunia.com/advisories/42905Vendor Advisory
• http://secunia.com/advisories/42907Vendor Advisory
• http://www.debian.org/security/2011/dsa-2148
• http://www.openwall.com/lists/oss-security/2011/01/18/7
• http://www.securityfocus.com/bid/45832
• http://www.securitytracker.com/id?1024980
• http://www.vupen.com/english/advisories/2011/0131Vendor Advisory
• http://www.vupen.com/english/advisories/2011/0132Vendor Advisory
• https://gitweb.torproject.org/tor.git/blob/refs/heads/release-0.2.2:/ChangeLogPatch
• https://trac.torproject.org/projects/tor/ticket/2324

Published

Jan 19, 2011

Last Modified

Jun 16, 2026

Status

Modified

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