Tor up to 0.2.0.33 denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.4$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Tor. Affected by this vulnerability is an unknown functionality. This manipulation causes denial of service. The identification of this vulnerability is CVE-2009-0939. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Tor (Network Encryption Software). Affected by this vulnerability is some unknown processing. 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 confidentiality, integrity, and availability. The summary by CVE is:

Tor before 0.2.0.34 treats incomplete IPv4 addresses as valid, which has unknown impact and attack vectors related to "Spec conformance," as demonstrated using 192.168.0.

The bug was discovered 02/09/2009. The weakness was shared 03/17/2009 (Website). It is possible to read the advisory at securityfocus.com. This vulnerability is known as CVE-2009-0939 since 03/17/2009. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 36 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 36139 (GLSA-200904-11 : 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 and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published 4 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (36139), SecurityFocus (BID 33713†), OSVDB (54024†), Secunia (SA33880†) and Vulnerability Center (SBV-21542†). The entries VDB-45358, VDB-45357, VDB-47178 and VDB-47177 are related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.4

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
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: 36139
Nessus Name: GLSA-200904-11 : Tor: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 63805
OpenVAS Name: Gentoo Security Advisory GLSA 200904-11 (tor)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

02/09/2009 🔍
02/09/2009 +0 days 🔍
02/09/2009 +0 days 🔍
02/10/2009 +1 days 🔍
03/17/2009 +35 days 🔍
03/17/2009 +0 days 🔍
03/17/2009 +0 days 🔍
04/08/2009 +22 days 🔍
04/11/2009 +3 days 🔍
04/13/2009 +2 days 🔍
03/17/2015 +2164 days 🔍
09/01/2019 +1629 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Status: Not defined

CVE: CVE-2009-0939 (🔍)
GCVE (CVE): GCVE-0-2009-0939
GCVE (VulDB): GCVE-100-47179
SecurityFocus: 33713 - Tor Multiple Denial of Service Vulnerabilities
Secunia: 33880
OSVDB: 54024 - CVE-2009-0939 - Tor - IP Completion Issue
Vulnerability Center: 21542 - Tor Prior to 0.2.0.34 IPv4 Unknown Vulnerability Related to \, Critical

See also: 🔍

Entryinfo

Created: 03/17/2015 23:38
Updated: 09/01/2019 12:43
Changes: 03/17/2015 23:38 (72), 09/01/2019 12:43 (5)
Complete: 🔍
Cache ID: 216:662:103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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