NullSoft WinAmp 5.3/5.24 Lyrics in_mp3.dll heap-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability was found in NullSoft WinAmp 5.3/5.24 and classified as problematic. The impacted element is an unknown function in the library in_mp3.dll of the component Lyrics Handler. Such manipulation leads to heap-based overflow. This vulnerability is documented as CVE-2006-5567. Additionally, an exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in NullSoft WinAmp 5.3/5.24 (Multimedia Player Software). It has been rated as critical. Affected by this issue is an unknown code in the library in_mp3.dll of the component Lyrics Handler. The manipulation with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Impacted is availability. CVE summarizes:

Multiple heap-based buffer overflows in AOL Nullsoft WinAmp before 5.31 allow user-assisted remote attackers to execute arbitrary code via a crafted (1) ultravox-max-msg header to the Ultravox protocol handler or (2) unspecified Lyrics3 tags.

The bug was discovered 10/19/2006. The weakness was released 10/25/2006 by Ligen with iDefense Labs (Website). The advisory is shared for download at winamp.com. This vulnerability is handled as CVE-2006-5567 since 10/27/2006. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details as well as a public exploit are known.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 6 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 22921 (Winamp < 5.31 Multiple Buffer Overflows), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 115441 (Nullsoft Winamp Ultravox Multiple Remote Heap Overflow Vulnerabilities).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at winamp.com. The best possible mitigation is suggested to be upgrading to the latest version. Attack attempts may be identified with Snort ID 9436. In this case the pattern Ultravox-Max-Msg|3A| is used for detection.

The vulnerability is also documented in the databases at X-Force (29804), Exploit-DB (2708), Tenable (22921), SecurityFocus (BID 20744†) and OSVDB (30051†). Entry connected to this vulnerability is available at VDB-2637. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 22921
Nessus Name: Winamp < 5.31 Multiple Buffer Overflows
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: winamp.com

Snort ID: 9436
Snort Message: WEB-CLIENT Ultravox-Max-Msg header integer overflow attempt
Snort Pattern: 🔍

Timelineinfo

10/19/2006 🔍
10/25/2006 +6 days 🔍
10/25/2006 +0 days 🔍
10/25/2006 +0 days 🔍
10/25/2006 +0 days 🔍
10/26/2006 +0 days 🔍
10/27/2006 +1 days 🔍
10/27/2006 +0 days 🔍
10/30/2006 +3 days 🔍
04/25/2026 +7117 days 🔍

Sourcesinfo

Vendor: nullsoft.com

Advisory: winamp.com
Researcher: Ligen
Organization: iDefense Labs
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2006-5567 (🔍)
GCVE (CVE): GCVE-0-2006-5567
GCVE (VulDB): GCVE-100-2636

OVAL: 🔍

CERT: 🔍
X-Force: 29804 - AOL Nullsoft Winamp ultravox-max-msg header buffer overflow, High Risk
SecurityFocus: 20744 - Nullsoft Winamp Ultravox Multiple Remote Heap Overflow Vulnerabilities
Secunia: 22580 - Winamp Lyrics3 and Ultravox Processing Buffer Overflows, Highly Critical
OSVDB: 30051 - Winamp Ultravox Protocol Handler ultravox-max-msg Header Overflow
SecurityTracker: 1017120 - Winamp Buffer Overflow in Parsing Ultravox Lyrics3 Tags Lets Remote Users Execute Arbitrary Code
Vupen: ADV-2006-4196

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

Entryinfo

Created: 10/30/2006 09:24
Updated: 04/25/2026 17:50
Changes: 10/30/2006 09:24 (82), 09/27/2016 18:15 (10), 03/13/2021 14:45 (8), 03/13/2021 14:48 (1), 12/17/2024 11:21 (15), 06/15/2025 20:23 (2), 04/25/2026 17:50 (1)
Complete: 🔍
Cache ID: 216::103

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