Apple iOS up to 5.1.1 WebKit memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.0$5k-$25k0.00

A vulnerability was found in Apple iOS up to 5.1.1 (Smartphone Operating System). It has been declared as critical. This vulnerability affects an unknown functionality of the component WebKit. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Heap-based buffer overflow in the tree builder in Google Chrome before 16.0.912.77 allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors.

The weakness was released 09/19/2012 by Arthur Gerkis (miaubiz) with team509 as APPLE-SA-2012-09-19-1 as confirmed posting (Website). The advisory is available at prod.lists.apple.com. This vulnerability was named CVE-2011-3926 since 10/01/2011. The exploitation appears to be easy. 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 structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 04/13/2021). It is expected to see the exploit prices for this product increasing in the near future.

The vulnerability scanner Nessus provides a plugin with the ID 57675 (FreeBSD : chromium -- multiple vulnerabilities (33d73d59-4677-11e1-88cd-00262d5ed8ee)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 119872 (Google Chrome Prior to 16.0.912.77 Multiple Vulnerabilities).

Upgrading to version 6.0 eliminates this vulnerability. The problem might be mitigated by replacing the product with Google Android as an alternative. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (72650) and Tenable (57675). Entries connected to this vulnerability are available at 4576, 4575, 4573 and 4574.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
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: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 57675
Nessus Name: FreeBSD : chromium -- multiple vulnerabilities (33d73d59-4677-11e1-88cd-00262d5ed8ee)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 70747
OpenVAS Name: FreeBSD Ports: chromium
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍
Upgrade: iOS 6.0
Alternative: Google Android

Timelineinfo

10/01/2011 🔍
01/23/2012 +114 days 🔍
01/23/2012 +0 days 🔍
01/23/2012 +0 days 🔍
01/24/2012 +1 days 🔍
01/24/2012 +0 days 🔍
02/08/2012 +15 days 🔍
09/19/2012 +224 days 🔍
09/19/2012 +0 days 🔍
09/21/2012 +1 days 🔍
04/13/2021 +3126 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: APPLE-SA-2012-09-19-1
Researcher: Arthur Gerkis (miaubiz)
Organization: team509
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-3926 (🔍)
OVAL: 🔍

X-Force: 72650
SecurityTracker: 1026569 - Google Chrome Multiple Flaws Let Remote Users Execute Arbitrary Code
Vulnerability Center: 34408 - Google Chrome Before 16.0.912.77 Tree Builder Remote Heap-Based Buffer Overflow Allows DoS, Medium
SecurityFocus: 51641 - Google Chrome Prior to 16.0.912.77 Multiple Security Vulnerabilities
Secunia: 47694 - Google Chrome Multiple Vulnerabilities, Highly Critical

scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍

Entryinfo

Created: 09/21/2012 13:45
Updated: 04/13/2021 14:58
Changes: 09/21/2012 13:45 (80), 04/09/2017 14:31 (12), 04/13/2021 14:58 (3)
Complete: 🔍
Cache ID: 3:244:103

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