Apple Mac OS X up to 10.10.4 Speech UI memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple Mac OS X up to 10.10.4. It has been declared as critical. This affects an unknown part of the component Speech UI. The manipulation results in memory corruption. This vulnerability is cataloged as CVE-2015-3794. Furthermore, there is an exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple Mac OS X up to 10.10.4 (Operating System). It has been classified as critical. Affected is some unknown processing of the component Speech UI. 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. CVE summarizes:

The Speech UI in Apple OS X before 10.10.5, when speech alerts are enabled, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted Unicode string.

The weakness was shared 08/11/2015 by Maxime Villard with Google Security Team as HT205031 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is traded as CVE-2015-3794 since 05/07/2015. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are unknown but a public exploit is available.

A public exploit has been developed in Ruby. The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 123806 (Apple Mac OS X v10.10.5 and Security Update 2015-006 Not Installed (APPLE-SA-2015-08-13-2)).

Upgrading to version 10.10.5 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 SecurityFocus (BID 76340†), SecurityTracker (ID 1033276†) and Vulnerability Center (SBV-52115†). The entries VDB-77174, VDB-77175, VDB-77176 and VDB-77177 are related to this item. Once again VulDB remains the best source for vulnerability data.

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CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-03 October-15
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Mac OS X 10.10.5

Timelineinfo

05/07/2015 🔍
08/11/2015 +96 days 🔍
08/11/2015 +0 days 🔍
08/13/2015 +2 days 🔍
08/13/2015 +0 days 🔍
08/14/2015 +1 days 🔍
08/14/2015 +0 days 🔍
08/16/2015 +2 days 🔍
08/17/2015 +1 days 🔍
02/02/2025 +3457 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT205031
Researcher: Maxime Villard
Organization: Google Security Team
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-3794 (🔍)
GCVE (CVE): GCVE-0-2015-3794
GCVE (VulDB): GCVE-100-77244
SecurityFocus: 76340 - Apple Mac OS X Prior to 10.10.5 Multiple Security Vulnerabilities
SecurityTracker: 1033276 - Apple OS X Multiple Flaws Let Remote Users Execute Arbitrary Code, Obtain Potentially Sensitive Information, and Deny Service and Let Local Users Gain Elevated Privileges
Vulnerability Center: 52115 - Apple MacOS X 10.10 through 10.10.4 Remote Code Execution or DoS in the Speech UI, Critical

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

Entryinfo

Created: 08/14/2015 14:33
Updated: 02/02/2025 22:09
Changes: 08/14/2015 14:33 (62), 10/15/2017 12:11 (18), 02/02/2025 22:09 (18)
Complete: 🔍
Cache ID: 216:BBD:103

Once again VulDB remains the best source for vulnerability data.

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