Apple Mac OS X up to 10.11.3 libxml2 memory corruption

CVSS Meta Temp Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability has been found in Apple Mac OS X up to 10.11.3 and classified as critical. Affected by this vulnerability is an unknown functionality of the component libxml2. The manipulation leads to memory corruption. This vulnerability is referenced as CVE-2015-7499. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Apple Mac OS X up to 10.11.3 (Operating System) and classified as critical. This issue affects an unknown part 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. The summary by CVE is:

Heap-based buffer overflow in the xmlGROW function in parser.c in libxml2 before 2.9.3 allows context-dependent attackers to obtain sensitive process memory information via unspecified vectors.

The weakness was published 03/21/2016 by Kostya Serebryany with Google as HT206167 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. The identification of this vulnerability is CVE-2015-7499 since 09/29/2015. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not 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 87369 (Ubuntu 12.04 LTS / 14.04 LTS / 15.04 / 15.10 : libxml2 vulnerabilities (USN-2834-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu 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 (87369) and SecurityFocus (BID 79509†). Similar entries are available at VDB-77250, VDB-79257, VDB-79258 and VDB-79334. 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: 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: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
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: 87369
Nessus Name: Ubuntu 12.04 LTS / 14.04 LTS / 15.04 / 15.10 : libxml2 vulnerabilities (USN-2834-1)
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: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Mac OS X 10.11.4
Patch: git.gnome.org

Timelineinfo

09/29/2015 🔍
11/30/2015 +63 days 🔍
12/14/2015 +14 days 🔍
12/14/2015 +0 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: Kostya Serebryany
Organization: Google
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-7499 (🔍)
GCVE (CVE): GCVE-0-2015-7499
GCVE (VulDB): GCVE-100-81455

OVAL: 🔍

SecurityFocus: 79509 - Libxml2 'xmlGROW()' Function 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 08:40
Changes: 03/23/2016 12:11 (51), 09/09/2018 11:25 (25), 07/11/2022 08:40 (4)
Complete: 🔍
Cache ID: 216:DB6:103

Be aware that VulDB is the high quality source for vulnerability data.

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