Libexpat up to 2.0.1 readfilemap.c input validation

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

Summaryinfo

A vulnerability identified as problematic has been detected in Libexpat expat up to 2.0.1. This issue affects some unknown processing of the file readfilemap.c. The manipulation leads to input validation. This vulnerability is referenced as CVE-2012-1147. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Libexpat expat up to 2.0.1. This issue affects some unknown functionality of the file readfilemap.c. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to 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. Impacted is 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 07/03/2012 (Website). It is possible to read the advisory at lists.apple.com. The identification of this vulnerability is CVE-2012-1147 since 02/14/2012. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

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. 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 2.0.0 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (73866), Tenable (62287), SecurityFocus (BID 52379†) and Vulnerability Center (SBV-37155†). 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

Vendor

Name

Version

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

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

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: 🔍

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: 🔍

0-Day Time: 🔍

Upgrade: expat 2.0.0

Timelineinfo

02/14/2012 🔍
03/09/2012 +24 days 🔍
03/09/2012 +0 days 🔍
07/03/2012 +116 days 🔍
07/03/2012 +0 days 🔍
11/12/2012 +132 days 🔍
03/23/2015 +861 days 🔍
12/05/2021 +2449 days 🔍

Sourcesinfo

Advisory: 11194
Status: Not defined
Confirmation: 🔍

CVE: CVE-2012-1147 (🔍)
GCVE (CVE): GCVE-0-2012-1147
GCVE (VulDB): GCVE-100-61175
X-Force: 73866
SecurityFocus: 52379 - Expat XML Parsing Multiple Remote Denial of Service Vulnerabilities
SecurityTracker: 1034344
Vulnerability Center: 37155 - Expat <2.1 Remote Denial of Service via a Large Number of Crafted XML Files, Medium

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 12/05/2021 18:02
Changes: 03/23/2015 16:50 (66), 04/20/2017 22:16 (5), 12/05/2021 17:54 (4), 12/05/2021 18:02 (1)
Complete: 🔍
Cache ID: 216:087:103

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