NullSoft WinAmp up to 5.63 gen_ff.dll memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability has been found in NullSoft WinAmp up to 5.63 (Multimedia Player Software) and classified as critical. Affected by this vulnerability is some unknown functionality in the library gen_ff.dll. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability.

The bug was discovered 06/05/2013. The weakness was shared 07/01/2013 by Julien Ahrens with Inshell Security as confirmed mailinglist post (Full-Disclosure). It is possible to read the advisory at The vendor cooperated in the coordination of the public release. This vulnerability is known as CVE-2013-4695 since 06/26/2013. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known.

A public exploit has been developed by Julien Ahrens and been published 1 days after the advisory. It is possible to download the exploit at It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 14 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 67207 (Winamp < 5.64 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows. The commercial vulnerability scanner Qualys is able to test this issue with plugin 121304 (Winamp Multiple Memory Corruption Vulnerabilities).

Upgrading to version 5.64 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (85400), Tenable (67207) and Exploit-DB (26557). The entries 9317, 9318 and 147816 are related to this item.






  • free


  • end of life

CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.9
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
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Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Julien Ahrens
Download: 🔍

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Current Price Estimation: 🔍


Nessus ID: 67207
Nessus Name: Winamp < 5.64 Multiple Vulnerabilities
Nessus File: 🔍
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Threat Intelligenceinfo

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Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Upgrade: WinAmp 5.64


06/05/2013 🔍
06/19/2013 +14 days 🔍
06/26/2013 +7 days 🔍
07/01/2013 +5 days 🔍
07/01/2013 +0 days 🔍
07/01/2013 +0 days 🔍
07/02/2013 +1 days 🔍
07/02/2013 +0 days 🔍
07/04/2013 +2 days 🔍
07/14/2013 +10 days 🔍
05/17/2021 +2864 days 🔍



Researcher: Julien Ahrens
Organization: Inshell Security
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2013-4695 (🔍)
X-Force: 85400
SecurityTracker: 1030107
Vulnerability Center: 40478 - Winamp Before 5.64 Remote Code Execution Vulnerability via Crafted \x27links.xml\x27 File, Medium
SecurityFocus: 60886 - Winamp CVE-2013-4695 Invalid Pointer Dereference Denial of Service Vulnerability
OSVDB: 94741

scip Labs:
See also: 🔍


Created: 07/04/2013 11:55 AM
Updated: 05/17/2021 02:45 PM
Changes: 07/04/2013 11:55 AM (75), 04/21/2019 08:40 PM (2), 05/17/2021 02:39 PM (2), 05/17/2021 02:42 PM (18), 05/17/2021 02:45 PM (1)
Complete: 🔍


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