XMLSoft libxml2 up to 2.4.x Nested Entity Reference numeric error

CVSS Meta Temp Score
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CTI Interest Score
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9.4$0-$5k0.00

Summaryinfo

A vulnerability was found in XMLSoft libxml2 up to 2.4.x and classified as problematic. Impacted is an unknown function of the component Nested Entity Reference Handler. Executing a manipulation can lead to numeric error. This vulnerability is handled as CVE-2003-1564. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in XMLSoft libxml2 up to 2.4.x (Document Processing Software). This vulnerability affects an unknown code of the component Nested Entity Reference Handler. The manipulation with an unknown input leads to a numeric error vulnerability. The CWE definition for the vulnerability is CWE-189. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

libxml2, possibly before 2.5.0, does not properly detect recursion during entity expansion, which allows context-dependent attackers to cause a denial of service (memory and CPU consumption) via a crafted XML document containing a large number of nested entity references, aka the "billion laughs attack."

The bug was discovered 08/30/2008. The weakness was released 12/31/2003 (Website). The advisory is available at xmlsoft.org. This vulnerability was named CVE-2003-1564 since 09/02/2008. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 34191 (RHEL 2.1 : libxml2 (RHSA-2008:0886)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 115942 (Red Hat libxml2 Security Update (RHSA-2008:0884-3)).

Upgrading to version 2.5.0 eliminates this vulnerability. A possible mitigation has been published 6 years after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (45094), Tenable (34191), OSVDB (48157†), Secunia (SA31868†) and Vulnerability Center (SBV-19450†). Entries connected to this vulnerability are available at VDB-3976, VDB-3977, VDB-3975 and VDB-109957. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.4

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Numeric error
CWE: CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 34191
Nessus Name: RHEL 2.1 : libxml2 (RHSA-2008:0886)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 880253
OpenVAS Name: Centreon command_name Parameter Remote Command Execution Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: libxml2 2.5.0

Timelineinfo

12/31/2003 🔍
12/31/2003 +0 days 🔍
12/31/2003 +0 days 🔍
08/30/2008 +1704 days 🔍
09/02/2008 +3 days 🔍
09/11/2008 +9 days 🔍
09/12/2008 +1 days 🔍
09/15/2008 +3 days 🔍
09/30/2014 +2206 days 🔍
08/16/2019 +1781 days 🔍

Sourcesinfo

Advisory: xmlsoft.org
Status: Not defined

CVE: CVE-2003-1564 (🔍)
GCVE (CVE): GCVE-0-2003-1564
GCVE (VulDB): GCVE-100-21466
X-Force: 45094
Secunia: 31868
OSVDB: 48157 - libxml2 XML document denial of service
Vulnerability Center: 19450 - Libxml2 < 2.5.0 Recursion Related Vulnerability Allows Denial of Service via a Crafted XML Document, High

See also: 🔍

Entryinfo

Created: 09/30/2014 15:29
Updated: 08/16/2019 20:15
Changes: 09/30/2014 15:29 (72), 08/16/2019 20:15 (6)
Complete: 🔍
Cache ID: 216:C32:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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