XMLSoft libxml2 2.7.0/2.7.1 resource management

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.8$0-$5k0.00

A vulnerability was found in XMLSoft libxml2 2.7.0/2.7.1 (Document Processing Software). It has been rated as problematic. Affected by this issue is an unknown function of the component libxml2. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. CVE summarizes:

libxml2 2.7.0 and 2.7.1 does not properly handle "predefined entities definitions" in entities, which allows context-dependent attackers to cause a denial of service (memory consumption and application crash), as demonstrated by use of xmllint on a certain XML document, a different vulnerability than CVE-2003-1564 and CVE-2008-3281.

The bug was discovered 10/02/2008. The weakness was shared 10/03/2008 (Website). The advisory is shared for download at redhat.com. This vulnerability is handled as CVE-2008-4409 since 10/03/2008. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 34342 (Fedora 8 : libxml2-2.7.1-2.fc8 (2008-8582)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 116453 (Apple Safari 4.0 Not Installed).

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (45633) and Tenable (34342). The entries 43511, 43810, 48541 and 48533 are related to this item.

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
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CVSSv2info

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Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
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ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

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Nessus ID: 34342
Nessus Name: Fedora 8 : libxml2-2.7.1-2.fc8 (2008-8582)
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OpenVAS ID: 860971
OpenVAS Name: Family Connections argv[1] Parameter Remote Arbitrary Command Execution Vulnerability
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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
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Timelineinfo

10/02/2008 🔍
10/02/2008 +0 days 🔍
10/02/2008 +0 days 🔍
10/03/2008 +1 days 🔍
10/03/2008 +0 days 🔍
10/03/2008 +0 days 🔍
10/03/2008 +0 days 🔍
10/03/2008 +0 days 🔍
10/06/2008 +3 days 🔍
12/07/2008 +62 days 🔍
03/17/2015 +2291 days 🔍
08/21/2019 +1618 days 🔍

Sourcesinfo

Advisory: redhat.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2008-4409 (🔍)
X-Force: 45633
Vulnerability Center: 20144 - libxml2 2.7.0 and 2.7.1 Remote Denial of Service Related to \, Medium
SecurityFocus: 31555 - libxml2 Denial of Service Vulnerability
Secunia: 32130 - Libxml2 Predefined Entities Denial of Service Vulnerability, Moderately Critical
OSVDB: 48754 - Libxml2 XML file denial of service
Vupen: ADV-2009-1522

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Entryinfo

Created: 03/17/2015 16:11
Updated: 08/21/2019 14:37
Changes: 03/17/2015 16:11 (80), 08/21/2019 14:37 (5)
Complete: 🔍

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