Google Chrome up to 16.0.912.75 libxml2 parser.c xmlStringLenDecodeEntities memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Google Chrome up to 16.0.912.75. Affected is the function xmlStringLenDecodeEntities of the file parser.c of the component libxml2. Such manipulation leads to memory corruption. This vulnerability is referenced as CVE-2011-3919. It is possible to launch the attack remotely. Furthermore, an exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Google Chrome up to 16.0.912.75 (Web Browser). Affected by this issue is the function xmlStringLenDecodeEntities of the file parser.c of the component libxml2. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Heap-based buffer overflow in libxml2, as used in Google Chrome before 16.0.912.75, allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors.

The weakness was published 01/05/2012 by Boris Zbarsky with Google Chrome Security Team as 107128 (Website). The advisory is shared for download at code.google.com. The public release has been coordinated with the vendor. This vulnerability is handled as CVE-2011-3919 since 10/01/2011. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details as well as a public exploit are known.

It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 75636 (openSUSE Security Update : libxml2 (openSUSE-SU-2012:0107-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 216039 (VMWare ESXi 4.0.0 Patch Release ESXi400-201209001 Missing (KB2019662)).

Upgrading to version 16.0.912.75 eliminates this vulnerability. The upgrade is hosted for download at chrome.google.com. Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.gnome.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (75636), SecurityFocus (BID 51300†), OSVDB (78148†), Secunia (SA47449†) and SecurityTracker (ID 1026487†). Similar entries are available at VDB-4214, VDB-4462, VDB-4522 and VDB-4521. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 75636
Nessus Name: openSUSE Security Update : libxml2 (openSUSE-SU-2012:0107-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 70712
OpenVAS Name: Debian Security Advisory DSA 2394-1 (libxml2)
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: Chrome 16.0.912.75
Patch: git.gnome.org

Timelineinfo

10/01/2011 🔍
01/05/2012 +96 days 🔍
01/05/2012 +0 days 🔍
01/06/2012 +1 days 🔍
01/06/2012 +0 days 🔍
01/06/2012 +0 days 🔍
01/07/2012 +0 days 🔍
01/21/2012 +14 days 🔍
06/13/2014 +874 days 🔍
03/20/2021 +2472 days 🔍

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: 107128
Researcher: Boris Zbarsky
Organization: Google Chrome Security Team
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2011-3919 (🔍)
GCVE (CVE): GCVE-0-2011-3919
GCVE (VulDB): GCVE-100-4520

OVAL: 🔍
IAVM: 🔍

SecurityFocus: 51300
Secunia: 47449 - Google Chrome Multiple Vulnerabilities, Highly Critical
OSVDB: 78148
SecurityTracker: 1026487 - Google Chrome Multiple Flaws Let Remote Users Execute Arbitrary Code

See also: 🔍

Entryinfo

Created: 01/21/2012 01:00
Updated: 03/20/2021 11:47
Changes: 01/21/2012 01:00 (82), 04/17/2019 14:03 (3), 03/20/2021 11:41 (7), 03/20/2021 11:47 (1)
Complete: 🔍
Cache ID: 216:9C9:103

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