Apple Mac OS X up to 10.11.1 libexpat input validation

CVSS Meta Temp Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Apple Mac OS X up to 10.11.1. Affected by this issue is some unknown functionality of the component libexpat. Performing a manipulation results in input validation. This vulnerability is known as CVE-2012-1147. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple Mac OS X up to 10.11.1 (Operating System). It has been classified as problematic. This affects some unknown processing of the component libexpat. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on availability. The summary by CVE is:

readfilemap.c in expat before 2.1.0 allows context-dependent attackers to cause a denial of service (file descriptor consumption) via a large number of crafted XML files.

The weakness was published 12/08/2015 by Kurt Seifried as HT205637 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. This vulnerability is uniquely identified as CVE-2012-1147 since 02/14/2012. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The advisory points out:

Multiple vulnerabilities existed in expat version prior to 2.1.0. These were addressed by updating expat to versions 2.1.0.

The vulnerability scanner Nessus provides a plugin with the ID 62287 (GLSA-201209-06 : Expat: Multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370347 (Apple iTunes Prior to 12.6 Multiple Vulnerabilities (APPLE-SA-2017-03-22-1) and (APPLE-SA-2017-03-22-2)).

Upgrading to version 10.11.2 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (62287), SecurityFocus (BID 52379†) and Vulnerability Center (SBV-55136†). Similar entries are available at VDB-10933, VDB-10938, VDB-50128 and VDB-61176. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Support

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
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: 62287
Nessus Name: GLSA-201209-06 : Expat: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 72423
OpenVAS Name: Gentoo Security Advisory GLSA 201209-06 (expat)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍

Upgrade: Mac OS X 10.11.2

Timelineinfo

02/14/2012 🔍
03/09/2012 +24 days 🔍
03/09/2012 +0 days 🔍
07/03/2012 +116 days 🔍
09/25/2012 +84 days 🔍
12/08/2015 +1169 days 🔍
12/08/2015 +0 days 🔍
12/09/2015 +1 days 🔍
12/10/2015 +1 days 🔍
06/29/2022 +2393 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT205637
Researcher: Kurt Seifried
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2012-1147 (🔍)
GCVE (CVE): GCVE-0-2012-1147
GCVE (VulDB): GCVE-100-79575
SecurityFocus: 52379
SecurityTracker: 1034344
Vulnerability Center: 55136 - Apple MacOS X <10.11.2 Remote DoS Vulnerability due to an Issue in Expat - CVE-2012-1147, Medium

scip Labs: https://www.scip.ch/en/?labs.20150108
See also: 🔍

Entryinfo

Created: 12/09/2015 14:05
Updated: 06/29/2022 15:15
Changes: 12/09/2015 14:05 (73), 05/14/2018 09:20 (6), 06/29/2022 15:15 (3)
Complete: 🔍
Cache ID: 216:0E9:103

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