CVE-2017-8821

Published: Dic 03, 2017 Last Modified: Apr 20, 2025 EU-VD ID: EUVD-2017-17764 Aliases: GSD-2017-8821
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 7,5
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
MEDIUM 5,0
Access Vector: network
Access Complexity: low
Authentication: none
Confidentiality: none
Integrity: none
Availability: partial

Description

AI Translation Available

In Tor before 0.2.5.16, 0.2.6 through 0.2.8 before 0.2.8.17, 0.2.9 before 0.2.9.14, 0.3.0 before 0.3.0.13, and 0.3.1 before 0.3.1.9, an attacker can cause a denial of service (application hang) via crafted PEM input that signifies a public key requiring a password, which triggers an attempt by the OpenSSL library to ask the user for the password, aka TROVE-2017-011.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0100
Percentile
0,8th
Updated

EPSS Score Trend (Last 91 Days)

119

Improper Restriction of Operations within the Bounds of a Memory Buffer

Stable
Common Consequences
Security Scopes Affected:
Integrity Confidentiality Availability
Potential Impacts:
Execute Unauthorized Code Or Commands Modify Memory Read Memory Dos: Crash, Exit, Or Restart Dos: Resource Consumption (Cpu) Dos: Resource Consumption (Memory)
Applicable Platforms
Languages: Assembly, C, C++, Memory-Unsafe
View CWE Details
Application

Tor by Tor Project

Version Range Affected
To 0.2.5.16 (exclusive)
cpe:2.3:a:tor_project:tor:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Tor by Tor Project

Version Range Affected
From 0.3.1 (inclusive)
To 0.3.1.9 (exclusive)
cpe:2.3:a:tor_project:tor:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Tor by Tor Project

Version Range Affected
From 0.2.6 (inclusive)
To 0.2.8.17 (exclusive)
cpe:2.3:a:tor_project:tor:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Debian Linux by Debian

cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Debian Linux by Debian

cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Tor by Tor Project

Version Range Affected
From 0.2.9 (inclusive)
To 0.2.9.14 (exclusive)
cpe:2.3:a:tor_project:tor:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Tor by Tor Project

Version Range Affected
From 0.3.0 (inclusive)
To 0.3.0.13 (exclusive)
cpe:2.3:a:tor_project:tor:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://blog.torproject.org/new-stable-tor-releases-security-fixes-0319-03013-0…
https://bugs.torproject.org/24246
https://www.debian.org/security/2017/dsa-4054
https://blog.torproject.org/new-stable-tor-releases-security-fixes-0319-03013-0…
https://bugs.torproject.org/24246
https://www.debian.org/security/2017/dsa-4054