Tor up to 0.1.1.14 Log denial of service

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

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Tor up to 0.1.1.14. This affects an unknown part of the component Log Handler. This manipulation causes denial of service. This vulnerability appears as CVE-2011-0490. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Tor up to 0.1.1.14 (Network Encryption Software). It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the component Log Handler. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

Tor before 0.2.1.29 and 0.2.2.x before 0.2.2.21-alpha makes calls to Libevent within Libevent log handlers, which might allow remote attackers to cause a denial of service (daemon crash) via vectors that trigger certain log messages.

The weakness was presented 01/19/2011 (Website). The advisory is shared at gitweb.torproject.org. This vulnerability is known as CVE-2011-0490. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 53901 (Fedora 14 : tor-0.2.1.29-1400.fc14 (2011-0642)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks.

Upgrading to version 0.1.1.15 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (64889), Tenable (53901), SecurityFocus (BID 45953†) and Vulnerability Center (SBV-31916†). See VDB-56116, VDB-56115, VDB-56114 and VDB-56112 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 53901
Nessus Name: Fedora 14 : tor-0.2.1.29-1400.fc14 (2011-0642)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

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

01/18/2011 🔍
01/19/2011 +1 days 🔍
01/19/2011 +0 days 🔍
01/19/2011 +0 days 🔍
06/20/2011 +152 days 🔍
03/19/2015 +1368 days 🔍
10/12/2021 +2399 days 🔍

Sourcesinfo

Advisory: 2190
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-0490 (🔍)
GCVE (CVE): GCVE-0-2011-0490
GCVE (VulDB): GCVE-100-56113
X-Force: 64889
SecurityFocus: 45953
Vulnerability Center: 31916 - Tor \x3C0.2.1.29 and 0.2.2-0.2.2.20-alpha Remote DoS via Vectors that Trigger Certain Log Messages, Medium

See also: 🔍

Entryinfo

Created: 03/19/2015 23:27
Updated: 10/12/2021 15:01
Changes: 03/19/2015 23:27 (58), 03/24/2017 12:08 (6), 10/12/2021 14:57 (5), 10/12/2021 15:01 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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