PT-2011-2013 · Jean Loup Gailly Mark Adler+1 · Zlib+1

Debuger · Published 2011-01-19 · Updated 2011-07-19 · CVE-2011-0015

Positive Technologies (AI Summary)

CVSS v2.0

5.0

Medium

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Name of the Vulnerable Software and Affected Versions Tor versions prior to 0.2.1.29 Tor versions 0.2.2.x prior to 0.2.2.21-alpha

Description The issue arises from improper checking of the amount of compression in zlib-compressed data, allowing remote attackers to cause a denial of service via a large compression factor.

Recommendations For Tor versions prior to 0.2.1.29, update to version 0.2.1.29 or later. For Tor versions 0.2.2.x prior to 0.2.2.21-alpha, update to version 0.2.2.21-alpha or later.

Fix

DoS

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2011-0015

DSA-2148-1

Affected Products

Tor

Zlib

References · 16

• http://blog.torproject.org/blog/tor-02129-released-security-patches · Patch
• http://vupen.com/english/advisories/2011/0131 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2011-0015 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2011-0015 · Vendor Advisory
• http://vupen.com/english/advisories/2011/0132 · Vendor Advisory
• http://archives.seul.org/or/announce/Jan-2011/msg00000.html · Patch
• http://secunia.com/advisories/42907 · Vendor Advisory
• https://gitweb.torproject.org/tor.git/blob/refs/heads/release-0.2.2:/ChangeLog · Patch
• http://secunia.com/advisories/42905 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2011-0015 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2011-0015 · Security Note
• http://debian.org/security/2011/dsa-2148 · Vendor Advisory
• https://trac.torproject.org/projects/tor/ticket/2324 · Note
• http://securityfocus.com/bid/45832 · Note
• http://securitytracker.com/id?1024980 · Note