libxml2 DNS Reply xmlNanoFTPConnect memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability classified as critical was found in libxml2 (Document Processing Software) (affected version not known). Affected by this vulnerability is the function xmlNanoFTPConnect of the component DNS Reply Handler. 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 weakness was shared 10/25/2004 by infamous41md (Website). The advisory is shared at This vulnerability is known as CVE-2004-0989. The attack can be launched remotely. Technical details and also a public exploit are known.

A public exploit has been developed in ANSI C. It is possible to download the exploit at It is declared as proof-of-concept. The commercial vulnerability scanner Qualys is able to test this issue with plugin 117947 (CentOS Security Update for libxml (CESA-2004:650)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at X-Force (17870). The entries 21645, 24000 and 82197 are related to this item.





  • open-source

CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍



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Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

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

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Threat Intelligenceinfo

Interest: 🔍
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Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍


10/25/2004 🔍
10/26/2004 +0 days 🔍
10/27/2004 +1 days 🔍
10/28/2004 +1 days 🔍
04/12/2016 +4183 days 🔍
07/13/2022 +2283 days 🔍


Researcher: infamous41md
Status: Not defined

CVE: CVE-2004-0989 (🔍)
X-Force: 17870
SecurityFocus: 11526 - Libxml2 Multiple Remote Stack Buffer Overflow Vulnerabilities
Secunia: 13000
OSVDB: 11180 - libxml2 DNS Reply Overflows

scip Labs:
See also: 🔍


Created: 04/12/2016 05:55 PM
Updated: 07/13/2022 05:58 PM
Changes: 04/12/2016 05:55 PM (44), 10/04/2018 04:29 PM (10), 07/13/2022 05:50 PM (3), 07/13/2022 05:58 PM (7)
Complete: 🔍


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