Apple iTunes up to 12.5 on Windows Expat memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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9.6$0-$5k0.00

Summaryinfo

A vulnerability has been found in Apple iTunes up to 12.5 on Windows and classified as critical. The affected element is an unknown function of the component Expat. Performing a manipulation results in memory corruption. This vulnerability is cataloged as CVE-2016-0718. It is possible to initiate the attack remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as very critical, was found in Apple iTunes up to 12.5 on Windows (Multimedia Player Software). This affects an unknown part of the component Expat. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Expat allows context-dependent attackers to cause a denial of service (crash) or possibly execute arbitrary code via a malformed input document, which triggers a buffer overflow.

The bug was discovered 05/20/2016. The weakness was shared 03/21/2017 by Gustavo Grieco as HT207599 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. This vulnerability is uniquely identified as CVE-2016-0718 since 12/16/2015. The exploitability is told to be easy. 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 pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/24/2022). The advisory points out:

Multiple issues existed in expat. These issues were addressed by updating expat to version 2.2.0.

The vulnerability was handled as a non-public zero-day exploit for at least 6 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 109594 (FreeBSD : python 2.7 -- multiple vulnerabilities (8719b935-8bae-41ad-92ba-3c826f651219)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 168881 (OpenSuSE Security Update for expat (openSUSE-SU-2016:1441-1)).

Upgrading to version 12.6 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 (109594) and SecurityFocus (BID 90729†). The entries VDB-87628, VDB-89749, VDB-90193 and VDB-90194 are related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.6

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 🔍

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: 109594
Nessus Name: FreeBSD : python 2.7 -- multiple vulnerabilities (8719b935-8bae-41ad-92ba-3c826f651219)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 800495
OpenVAS Name: Apple iTunes Multiple Vulnerabilities-HT207599 (Windows)
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: iTunes 12.6

Timelineinfo

12/16/2015 🔍
05/18/2016 +154 days 🔍
05/20/2016 +2 days 🔍
05/26/2016 +5 days 🔍
03/21/2017 +299 days 🔍
03/21/2017 +0 days 🔍
03/29/2017 +8 days 🔍
05/07/2018 +404 days 🔍
11/24/2022 +1662 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT207599
Researcher: Gustavo Grieco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-0718 (🔍)
GCVE (CVE): GCVE-0-2016-0718
GCVE (VulDB): GCVE-100-99039

OVAL: 🔍

SecurityFocus: 90729 - Expat CVE-2016-0718 Buffer Overflow Vulnerability
OSVDB: - CVE-2016-0718 - LibExpat - Expat - Denial of Service Issue
SecurityTracker: 1036348

See also: 🔍

Entryinfo

Created: 03/29/2017 16:53
Updated: 11/24/2022 08:07
Changes: 03/29/2017 16:53 (81), 08/23/2020 17:09 (7), 11/24/2022 08:07 (4)
Complete: 🔍
Cache ID: 216:E57:103

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

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