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Vulnerability Details : CVE-2013-1762

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.
Publish Date : 2013-03-08 Last Update Date : 2014-01-17
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity High (Specialized access conditions exist. It is hard to exploit and several special conditions must be satisfied to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Execute CodeOverflow

- Related OVAL Definitions

Title Definition Id Class Family
DEPRECATED: ELSA-2013-0714 -- stunnel security update (moderate) oval:org.mitre.oval:def:27643 unix
DSA-2664-1 stunnel4 - buffer overflow oval:org.mitre.oval:def:20019 unix
ELSA-2013:0714: stunnel security update (Moderate) oval:org.mitre.oval:def:23939 unix
RHSA-2013:0714: stunnel security update (Moderate) oval:com.redhat.rhsa:def:20130714 unix
RHSA-2013:0714: stunnel security update (Moderate) oval:org.mitre.oval:def:21174 unix
SUSE-SU-2013:0709-1 -- Security update for stunnel oval:org.mitre.oval:def:25990 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2013-1762

# Product Type Vendor Product Version Update Edition Language
1 Application Stunnel Stunnel 4.21 Version Details Vulnerabilities
2 Application Stunnel Stunnel 4.22 Version Details Vulnerabilities
3 Application Stunnel Stunnel 4.23 Version Details Vulnerabilities
4 Application Stunnel Stunnel 4.24 Version Details Vulnerabilities
5 Application Stunnel Stunnel 4.25 Version Details Vulnerabilities
6 Application Stunnel Stunnel 4.26 Version Details Vulnerabilities
7 Application Stunnel Stunnel 4.27 Version Details Vulnerabilities
8 Application Stunnel Stunnel 4.28 Version Details Vulnerabilities
9 Application Stunnel Stunnel 4.29 Version Details Vulnerabilities
10 Application Stunnel Stunnel 4.30 Version Details Vulnerabilities
11 Application Stunnel Stunnel 4.31 Version Details Vulnerabilities
12 Application Stunnel Stunnel 4.32 Version Details Vulnerabilities
13 Application Stunnel Stunnel 4.33 Version Details Vulnerabilities
14 Application Stunnel Stunnel 4.34 Version Details Vulnerabilities
15 Application Stunnel Stunnel 4.35 Version Details Vulnerabilities
16 Application Stunnel Stunnel 4.36 Version Details Vulnerabilities
17 Application Stunnel Stunnel 4.37 Version Details Vulnerabilities
18 Application Stunnel Stunnel 4.38 Version Details Vulnerabilities
19 Application Stunnel Stunnel 4.39 Version Details Vulnerabilities
20 Application Stunnel Stunnel 4.40 Version Details Vulnerabilities
21 Application Stunnel Stunnel 4.41 Version Details Vulnerabilities
22 Application Stunnel Stunnel 4.42 Version Details Vulnerabilities
23 Application Stunnel Stunnel 4.43 Version Details Vulnerabilities
24 Application Stunnel Stunnel 4.44 Version Details Vulnerabilities
25 Application Stunnel Stunnel 4.45 Version Details Vulnerabilities
26 Application Stunnel Stunnel 4.46 Version Details Vulnerabilities
27 Application Stunnel Stunnel 4.47 Version Details Vulnerabilities
28 Application Stunnel Stunnel 4.48 Version Details Vulnerabilities
29 Application Stunnel Stunnel 4.49 Version Details Vulnerabilities
30 Application Stunnel Stunnel 4.50 Version Details Vulnerabilities
31 Application Stunnel Stunnel 4.51 Version Details Vulnerabilities
32 Application Stunnel Stunnel 4.52 Version Details Vulnerabilities
33 Application Stunnel Stunnel 4.53 Version Details Vulnerabilities
34 Application Stunnel Stunnel 4.54 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Stunnel Stunnel 34

- References For CVE-2013-1762

- Metasploit Modules Related To CVE-2013-1762

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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