VDB-81453 · CVE-2015-1819 · HT206167

Apple Mac OS X up to 10.11.3 libxml2 resource management

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7.0	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Apple Mac OS X up to 10.11.3. This impacts an unknown function of the component libxml2. Performing a manipulation results in resource management. This vulnerability was named CVE-2015-1819. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Apple Mac OS X up to 10.11.3 (Operating System). This affects an unknown functionality of the component libxml2. The manipulation with an unknown input leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The xmlreader in libxml allows remote attackers to cause a denial of service (memory consumption) via crafted XML data, related to an XML Entity Expansion (XEE) attack.

The weakness was presented 03/21/2016 by Florian Weimer as HT206167 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is uniquely identified as CVE-2015-1819 since 02/16/2015. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The advisory points out:

Multiple memory corruption issues were addressed through improved memory handling.

The vulnerability scanner Nessus provides a plugin with the ID 87354 (Amazon Linux AMI : libxml2 (ALAS-2015-628)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Amazon Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 351588 (Amazon Linux Security Advisory for libxml2: ALAS2-2019-1220).

Upgrading to version 10.11.4 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 (87354) and SecurityFocus (BID 75570†). See VDB-77250, VDB-79257, VDB-79258 and VDB-79334 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Operating System

Vendor

Apple

Name

Mac OS X

Version

License

commercial

Support

end of life

Website

Vendor: https://www.apple.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

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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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Nessus ID: 87354
Nessus Name: Amazon Linux AMI : libxml2 (ALAS-2015-628)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 14611
OpenVAS Name: Amazon Linux Local Check: alas-2015-628
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 10.11.4
Patch: git.gnome.org

Timelineinfo

02/16/2015 🔍
07/07/2015 +140 days 🔍
08/14/2015 +38 days 🔍
12/14/2015 +123 days 🔍
03/21/2016 +97 days 🔍
03/21/2016 +0 days 🔍
03/23/2016 +2 days 🔍
07/11/2022 +2301 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT206167
Researcher: Florian Weimer
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-1819 (🔍)
GCVE (CVE): GCVE-0-2015-1819
GCVE (VulDB): GCVE-100-81453

OVAL: 🔍

SecurityFocus: 75570 - Libxml2 CVE-2015-1819 Denial of Service Vulnerability
SecurityTracker: 1034243

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

Entryinfo

Created: 03/23/2016 12:11
Updated: 07/11/2022 08:36
Changes: 03/23/2016 12:11 (51), 09/09/2018 11:24 (24), 07/11/2022 08:36 (4)
Complete: 🔍
Cache ID: 216::103

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