Tor up to 0.1.1.14 memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

A vulnerability was found in Tor up to 0.1.1.14 (Network Encryption Software). It has been classified as critical. Affected is an unknown function. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Heap-based buffer overflow in Tor before 0.2.1.29 and 0.2.2.x before 0.2.2.21-alpha allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unspecified vectors.

The weakness was disclosed 01/19/2011 (Website). The advisory is shared for download at gitweb.torproject.org. This vulnerability is traded as CVE-2011-0427. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 51560 (FreeBSD : tor -- remote code execution and crash (38bdf10e-2293-11e0-bfa4-001676740879)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks.

Upgrading to version 0.1.1.15 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (64748) and Tenable (51560). The entries 56116, 56114, 56113 and 56111 are pretty similar.

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: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
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: 51560
Nessus Name: FreeBSD : tor -- remote code execution and crash (38bdf10e-2293-11e0-bfa4-001676740879)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 68986
OpenVAS Name: Debian Security Advisory DSA 2148-1 (tor)
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

01/12/2011 🔍
01/17/2011 +5 days 🔍
01/18/2011 +1 days 🔍
01/19/2011 +1 days 🔍
01/19/2011 +0 days 🔍
01/19/2011 +0 days 🔍
01/23/2011 +4 days 🔍
03/19/2015 +1516 days 🔍
10/12/2021 +2399 days 🔍

Sourcesinfo

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

CVE: CVE-2011-0427 (🔍)
OVAL: 🔍

X-Force: 64748
Vulnerability Center: 29332 - Tor Remote DoS or Arbitrary Code Execution Vulnerability, High
SecurityFocus: 45832 - Tor Unspecified Buffer Overflow, Denial of Service and Information Disclosure Vulnerabilities
Secunia: 42905

See also: 🔍

Entryinfo

Created: 03/19/2015 23:27
Updated: 10/12/2021 14:54
Changes: 03/19/2015 23:27 (60), 03/14/2017 11:42 (9), 10/12/2021 14:49 (6), 10/12/2021 14:52 (1), 10/12/2021 14:54 (1)
Complete: 🔍

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