Description
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.
References (12)
Core 12
Core References
Patch mailing-list
x_refsource_mlist
http://archives.seul.org/or/announce/Jan-2011/msg00000.html
Vendor Advisory vdb-entry
x_refsource_vupen
http://www.vupen.com/english/advisories/2011/0131
Patch x_refsource_confirm
https://gitweb.torproject.org/tor.git/blob/refs/heads/release-0.2.2:/ChangeLog
Various Sources x_refsource_confirm
https://trac.torproject.org/projects/tor/ticket/2324
Vendor Advisory third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/42907
Patch x_refsource_confirm
http://blog.torproject.org/blog/tor-02129-released-security-patches
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id?1024980
Vendor Advisory vdb-entry
x_refsource_vupen
http://www.vupen.com/english/advisories/2011/0132
Third Party Advisory vendor-advisory
x_refsource_debian
http://www.debian.org/security/2011/dsa-2148
Vendor Advisory third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/42905
Mailing List mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2011/01/18/7
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/45832
Scores
EPSS
0.0311
EPSS Percentile
86.2%
Details
CWE
CWE-20
Status
published
Products (50)
tor/tor
0.0.2
tor/tor
0.0.2_pre13
tor/tor
0.0.2_pre14
tor/tor
0.0.2_pre15
tor/tor
0.0.2_pre16
tor/tor
0.0.2_pre17
tor/tor
0.0.2_pre18
tor/tor
0.0.2_pre19
tor/tor
0.0.2_pre20
tor/tor
0.0.2_pre21
... and 40 more
Published
Jan 19, 2011
Tracked Since
Feb 18, 2026