Sun Solaris 8/9/10 UTF-8 Parser Libxml2 resource management

CVSS Meta Temp Score
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CTI Interest Score
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5.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Sun Solaris 8/9/10. It has been classified as problematic. Impacted is an unknown function in the library Libxml2 of the component UTF-8 Parser. This manipulation causes resource management. This vulnerability is tracked as CVE-2007-6284. No exploit exists. The affected component should be disabled.

Detailsinfo

A vulnerability classified as problematic was found in Sun Solaris 8/9/10 (Operating System). Affected by this vulnerability is an unknown code block in the library Libxml2 of the component UTF-8 Parser. The manipulation with an unknown input leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect availability. The summary by CVE is:

The xmlCurrentChar function in libxml2 before 2.6.31 allows context-dependent attackers to cause a denial of service (infinite loop) via XML containing invalid UTF-8 sequences.

The bug was discovered 12/17/2007. The weakness was disclosed 01/15/2008 by Patrick with Sun (Website). It is possible to read the advisory at sunsolve.sun.com. This vulnerability is known as CVE-2007-6284 since 12/10/2007. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 25 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 67637 (Oracle Linux 3 / 4 / 5 : libxml2 (ELSA-2008-0032)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165712 (SUSE Enterprise Linux Security Update (SUSE-SR:2008:002)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at sunsolve.sun.com. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (39610), Tenable (67637), SecurityFocus (BID 27248†), OSVDB (40194†) and Secunia (SA29591†). The entries VDB-3410, VDB-37647, VDB-39622 and VDB-39621 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Support

  • end of life (old version)

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.6

VulDB Base Score: 5.9
VulDB Temp Score: 5.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 67637
Nessus Name: Oracle Linux 3 / 4 / 5 : libxml2 (ELSA-2008-0032)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 60181
OpenVAS Name: Debian Security Advisory DSA 1461-1 (libxml2)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Disable
Status: 🔍

0-Day Time: 🔍

Patch: sunsolve.sun.com

Timelineinfo

12/10/2007 🔍
12/17/2007 +7 days 🔍
01/11/2008 +25 days 🔍
01/11/2008 +0 days 🔍
01/11/2008 +0 days 🔍
01/11/2008 +0 days 🔍
01/11/2008 +0 days 🔍
01/13/2008 +1 days 🔍
01/13/2008 +0 days 🔍
01/15/2008 +2 days 🔍
01/21/2008 +6 days 🔍
07/12/2013 +1999 days 🔍
08/03/2019 +2213 days 🔍

Sourcesinfo

Vendor: oracle.com

Advisory: sunsolve.sun.com⛔
Researcher: Patrick
Organization: Sun
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2007-6284 (🔍)
GCVE (CVE): GCVE-0-2007-6284
GCVE (VulDB): GCVE-100-3547

OVAL: 🔍

X-Force: 39610
SecurityFocus: 27248 - libxml2 'xmlCurrentChar()' UTF-8 Parsing Remote Denial of Service Vulnerability
Secunia: 29591
OSVDB: 40194 - libxml2 xmlCurrentChar Function UTF-8 Parsing DoS
SecurityTracker: 1019181
Vulnerability Center: 17315 - libxml2 < 2.6.31 xmlCurrentChar Function Allows Remote DoS via XML with Invalid UTF-8 Sequences, Medium
Vupen: ADV-2008-1033

See also: 🔍

Entryinfo

Created: 01/21/2008 15:07
Updated: 08/03/2019 10:28
Changes: 01/21/2008 15:07 (99), 08/03/2019 10:28 (1)
Complete: 🔍
Cache ID: 216:2F2:103

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