// For flags

CVE-2013-1762

Stunnel: buffer overflow vulnerability due to incorrect integer conversion in the NTLM authentication of the CONNECT protocol negotiation

Severity Score

6.6
*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

stunnel 4.21 through 4.54, when CONNECT protocol negotiation and NTLM authentication are enabled, does not correctly perform integer conversion, which allows remote proxy servers to execute arbitrary code via a crafted request that triggers a buffer overflow.

stunnel v4.21 a v4.54, cuando el protocolo de negociación CONNECT y la autenticación NTLM están habilitadas, no realiza la conversión de enteros correctamente, lo que permite ejecutar código de su elección a servidores remotos proxy a través de una solicitud hecha a mano que dispara un desbordamiento de búfer.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Complete
Attack Vector
Network
Attack Complexity
High
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2013-02-19 CVE Reserved
  • 2013-03-08 CVE Published
  • 2024-04-01 EPSS Updated
  • 2024-08-06 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-94: Improper Control of Generation of Code ('Code Injection')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Stunnel
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Stunnel
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<= 4.54
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-
Affected
Stunnel
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Stunnel
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4.21
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-
Affected
Stunnel
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Stunnel
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4.22
Search vendor "Stunnel" for product "Stunnel" and version "4.22"
-
Affected
Stunnel
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Stunnel
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4.23
Search vendor "Stunnel" for product "Stunnel" and version "4.23"
-
Affected
Stunnel
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Stunnel
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4.24
Search vendor "Stunnel" for product "Stunnel" and version "4.24"
-
Affected
Stunnel
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Stunnel
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4.25
Search vendor "Stunnel" for product "Stunnel" and version "4.25"
-
Affected
Stunnel
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Stunnel
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4.26
Search vendor "Stunnel" for product "Stunnel" and version "4.26"
-
Affected
Stunnel
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Stunnel
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4.27
Search vendor "Stunnel" for product "Stunnel" and version "4.27"
-
Affected
Stunnel
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Stunnel
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4.28
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-
Affected
Stunnel
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Stunnel
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4.29
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-
Affected
Stunnel
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Stunnel
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4.30
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-
Affected
Stunnel
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Stunnel
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4.31
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-
Affected
Stunnel
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Stunnel
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4.32
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-
Affected
Stunnel
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Stunnel
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4.33
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-
Affected
Stunnel
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Stunnel
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4.34
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-
Affected
Stunnel
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Stunnel
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4.35
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-
Affected
Stunnel
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Stunnel
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4.36
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-
Affected
Stunnel
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Stunnel
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4.37
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-
Affected
Stunnel
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Stunnel
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4.38
Search vendor "Stunnel" for product "Stunnel" and version "4.38"
-
Affected
Stunnel
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Stunnel
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4.39
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-
Affected
Stunnel
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Stunnel
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4.40
Search vendor "Stunnel" for product "Stunnel" and version "4.40"
-
Affected
Stunnel
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Stunnel
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4.41
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-
Affected
Stunnel
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Stunnel
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4.42
Search vendor "Stunnel" for product "Stunnel" and version "4.42"
-
Affected
Stunnel
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Stunnel
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4.43
Search vendor "Stunnel" for product "Stunnel" and version "4.43"
-
Affected
Stunnel
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Stunnel
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4.44
Search vendor "Stunnel" for product "Stunnel" and version "4.44"
-
Affected
Stunnel
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Stunnel
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4.45
Search vendor "Stunnel" for product "Stunnel" and version "4.45"
-
Affected
Stunnel
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Stunnel
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4.46
Search vendor "Stunnel" for product "Stunnel" and version "4.46"
-
Affected
Stunnel
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Stunnel
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4.47
Search vendor "Stunnel" for product "Stunnel" and version "4.47"
-
Affected
Stunnel
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Stunnel
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4.48
Search vendor "Stunnel" for product "Stunnel" and version "4.48"
-
Affected
Stunnel
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Stunnel
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4.49
Search vendor "Stunnel" for product "Stunnel" and version "4.49"
-
Affected
Stunnel
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Stunnel
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4.50
Search vendor "Stunnel" for product "Stunnel" and version "4.50"
-
Affected
Stunnel
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Stunnel
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4.51
Search vendor "Stunnel" for product "Stunnel" and version "4.51"
-
Affected
Stunnel
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Stunnel
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4.52
Search vendor "Stunnel" for product "Stunnel" and version "4.52"
-
Affected
Stunnel
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Stunnel
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4.53
Search vendor "Stunnel" for product "Stunnel" and version "4.53"
-
Affected