NullSoft WinAmp up to 5.63 gen_ff.dll memory corruption

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.5	$0-$5k	0.00

Summaryinfo

A vulnerability identified as critical has been detected in NullSoft WinAmp up to 5.63. This affects an unknown part in the library gen_ff.dll. This manipulation causes memory corruption. The identification of this vulnerability is CVE-2013-4695. The attack can only be executed locally. Furthermore, there is an exploit available. You should upgrade the affected component.

Detailsinfo

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 product 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 seclists.org. 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 inshell.net. 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), Exploit-DB (26557), Tenable (67207), SecurityFocus (BID 60886†) and OSVDB (94741†). The entries VDB-9317, VDB-9318 and VDB-147816 are related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Multimedia Player Software

Vendor

• NullSoft

Name

• WinAmp

Version

• 5.0
• 5.1
• 5.2
• 5.3
• 5.4
• 5.5
• 5.6
• 5.7
• 5.8
• 5.9
• 5.10
• 5.11
• 5.12
• 5.13
• 5.14
• 5.15
• 5.16
• 5.17
• 5.18
• 5.19
• 5.20
• 5.21
• 5.22
• 5.23
• 5.24
• 5.25
• 5.26
• 5.27
• 5.28
• 5.29
• 5.30
• 5.31
• 5.32
• 5.33
• 5.34
• 5.35
• 5.36
• 5.37
• 5.38
• 5.39
• 5.40
• 5.41
• 5.42
• 5.43
• 5.44
• 5.45
• 5.46
• 5.47
• 5.48
• 5.49
• 5.50
• 5.51
• 5.52
• 5.53
• 5.54
• 5.55
• 5.56
• 5.57
• 5.58
• 5.59
• 5.60
• 5.61
• 5.62
• 5.63

License

• free

Support

• end of life

Website

• Vendor: http://www.nullsoft.com/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 67207
Nessus Name: Winamp < 5.64 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Upgrade: WinAmp 5.64

Timelineinfo

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 🔍
05/31/2025 +4339 days 🔍

Sourcesinfo

Vendor: nullsoft.com

Advisory: seclists.org
Researcher: Julien Ahrens
Organization: Inshell Security
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2013-4695 (🔍)
GCVE (CVE): GCVE-0-2013-4695
GCVE (VulDB): GCVE-100-9319
X-Force: 85400
SecurityFocus: 60886 - Winamp CVE-2013-4695 Invalid Pointer Dereference Denial of Service Vulnerability
OSVDB: 94741
SecurityTracker: 1030107
Vulnerability Center: 40478 - Winamp Before 5.64 Remote Code Execution Vulnerability via Crafted \x27links.xml\x27 File, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 07/04/2013 11:55
Updated: 05/31/2025 21:13
Changes: 07/04/2013 11:55 (75), 04/21/2019 20:40 (2), 05/17/2021 14:39 (2), 05/17/2021 14:42 (18), 05/17/2021 14:45 (1), 05/31/2025 21:13 (15)
Complete: 🔍
Committer:
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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