// For flags

CVE-2015-2689

 

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Tor before 0.2.4.26 and 0.2.5.x before 0.2.5.11 does not properly handle pending-connection resolve states during periods of high DNS load, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) via crafted packets.

Tor versiones anteriores a 0.2.4.26 y versiones 0.2.5.x anteriores a 0.2.5.11, no maneja apropiadamente los estados de resolución de conexión pendiente durante los períodos de alta carga DNS, lo que permite a atacantes remotos causar una denegación de servicio (falla de aserción y salida del demonio) por medio de paquetes.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2015-03-24 CVE Reserved
  • 2020-01-24 CVE Published
  • 2023-03-07 EPSS Updated
  • 2024-08-06 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-20: Improper Input Validation
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Torproject
Search vendor "Torproject"
 Tor
Search vendor "Torproject" for product "Tor"
 < 0.2.4.26
Search vendor "Torproject" for product "Tor" and version " < 0.2.4.26"
-
Affected
Torproject
Search vendor "Torproject"
 Tor
Search vendor "Torproject" for product "Tor"
 >= 0.2.5.1 < 0.2.5.11
Search vendor "Torproject" for product "Tor" and version " >= 0.2.5.1 < 0.2.5.11"
-
Affected