Xmlsoft libxml2 2.9.0 HTML Parser HTMLparser.c htmlParseChunk resource management

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.5$0-$5k0.00

A vulnerability has been found in Xmlsoft libxml2 2.9.0 (Document Processing Software) and classified as very critical. This vulnerability affects the function htmlParseChunk of the file HTMLparser.c of the component HTML 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 confidentiality, integrity, and availability. CVE summarizes:

Multiple use-after-free vulnerabilities in libxml2 2.9.0 and possibly other versions might allow context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via vectors related to the (1) htmlParseChunk and (2) xmldecl_done functions, as demonstrated by a buffer overflow in the xmlBufGetInputBase function.

The weakness was presented 12/14/2012 by Zan Dobersek as 690202 as not defined bug report (Bugzilla). The advisory is shared for download at bugzilla.gnome.org. The public release happened without coordination with the vendor. This vulnerability was named CVE-2013-1969 since 02/19/2013. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 05/08/2021).

The vulnerability scanner Nessus provides a plugin with the ID 74982 (openSUSE Security Update : libxml2 (openSUSE-SU-2013:0945-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.gnome.org.

The vulnerability is also documented in the databases at X-Force (83623) and Tenable (74982). See 8249 for similar entry.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.5

VulDB Base Score: 10.0
VulDB Temp Score: 9.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

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

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 74982
Nessus Name: openSUSE Security Update : libxml2 (openSUSE-SU-2013:0945-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 841420
OpenVAS Name: Ubuntu Update for libxml2 USN-1817-1
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: git.gnome.org

Timelineinfo

12/14/2012 🔍
02/12/2013 +60 days 🔍
02/12/2013 +0 days 🔍
02/19/2013 +7 days 🔍
04/16/2013 +56 days 🔍
04/17/2013 +1 days 🔍
04/25/2013 +8 days 🔍
05/13/2013 +18 days 🔍
06/13/2014 +396 days 🔍
05/08/2021 +2521 days 🔍

Sourcesinfo

Advisory: 690202
Researcher: Zan Dobersek
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-1969 (🔍)
OVAL: 🔍

X-Force: 83623
Vulnerability Center: 39532 - Libxml2 2.9.0 Remote DoS and Possible Code Execution via Vectors Related to htmlParseChunk and xmldecl_done, High
SecurityFocus: 59265 - libxml2 Multiple Use After Free Memory Corruption Vulnerabilities
Secunia: 53061 - libxml2 Multiple Use-After-Free Vulnerabilities, Highly Critical
OSVDB: 92251

See also: 🔍

Entryinfo

Created: 04/16/2013 17:57
Updated: 05/08/2021 08:52
Changes: 04/16/2013 17:57 (82), 04/29/2017 20:44 (3), 05/08/2021 08:52 (3)
Complete: 🔍
Cache ID: 18:85B

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