// For flags

CVE-2017-8823

 

Severity Score

8.1
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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, there is a use-after-free in onion service v2 during intro-point expiration because the expiring list is mismanaged in certain error cases, aka TROVE-2017-013.

En Tor, en versiones anteriores a la 0.2.5.16; de la versión 0.2.6 hasta la 0.2.8 anterior a la 0.2.8.17: versiones 0.2.9 anteriores a la 0.2.9.14; versiones 0.3.0 anteriores a la 0.3.0.13 y versiones 0.3.1 anteriores a la 0.3.1.9, existe un uso de memoria previamente liberada en el servicio onion v2 durante la expiración del nodo de entrada, debido a que la lista de expiración se gestiona de manera incorrecta en ciertos casos de error. Esto también se conoce como TROVE-2017-013.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2017-05-07 CVE Reserved
  • 2017-12-03 CVE Published
  • 2023-06-29 EPSS Updated
  • 2024-08-05 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-416: Use After Free
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Tor Project
Search vendor "Tor Project"
Tor
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< 0.2.5.16
Search vendor "Tor Project" for product "Tor" and version " < 0.2.5.16"
-
Affected
Tor Project
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Tor
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>= 0.2.6 < 0.2.8.17
Search vendor "Tor Project" for product "Tor" and version " >= 0.2.6 < 0.2.8.17"
-
Affected
Tor Project
Search vendor "Tor Project"
Tor
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>= 0.2.9 < 0.2.9.14
Search vendor "Tor Project" for product "Tor" and version " >= 0.2.9 < 0.2.9.14"
-
Affected
Tor Project
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Tor
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>= 0.3.0 < 0.3.0.13
Search vendor "Tor Project" for product "Tor" and version " >= 0.3.0 < 0.3.0.13"
-
Affected
Tor Project
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Tor
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>= 0.3.1 < 0.3.1.9
Search vendor "Tor Project" for product "Tor" and version " >= 0.3.1 < 0.3.1.9"
-
Affected
Debian
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Debian Linux
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8.0
Search vendor "Debian" for product "Debian Linux" and version "8.0"
-
Affected
Debian
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Debian Linux
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9.0
Search vendor "Debian" for product "Debian Linux" and version "9.0"
-
Affected