Tor up to 0.1.1.14 input validation

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

A vulnerability has been found in Tor up to 0.1.1.14 (Network Encryption Software) and classified as problematic. This vulnerability affects an unknown code block. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. CVE summarizes:

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.

The weakness was published 01/19/2011 (Website). The advisory is available at gitweb.torproject.org. This vulnerability was named CVE-2011-0015. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 56549 (GLSA-201110-13 : Tor: Multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks.

Upgrading to version 0.1.1.15 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (56549). Similar entries are available at 56116, 56114, 56113 and 56112.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 56549
Nessus Name: GLSA-201110-13 : Tor: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 863090
OpenVAS Name: Fedora Update for tor FEDORA-2011-0642
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Tor 0.1.1.15

Timelineinfo

12/07/2010 🔍
01/17/2011 +41 days 🔍
01/19/2011 +2 days 🔍
01/19/2011 +0 days 🔍
06/20/2011 +152 days 🔍
10/19/2011 +121 days 🔍
03/19/2015 +1247 days 🔍
10/12/2021 +2399 days 🔍

Sourcesinfo

Advisory: dsa-2148
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-0015 (🔍)
Vulnerability Center: 31918 - Tor \x3C0.2.1.29 and 0.2.2-0.2.2.20-alpha Remote DoS Vulnerability via a Large Compression Factor, Medium
SecurityFocus: 45832
Secunia: 42905

See also: 🔍

Entryinfo

Created: 03/19/2015 23:27
Updated: 10/12/2021 14:39
Changes: 03/19/2015 23:27 (58), 03/24/2017 12:09 (6), 10/12/2021 14:35 (6), 10/12/2021 14:37 (1), 10/12/2021 14:39 (1)
Complete: 🔍

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