Apple Mac OS X up to 10.10.4 CoreText memory corruption

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

Summaryinfo

A vulnerability has been found in Apple Mac OS X up to 10.10.4 and classified as critical. This impacts an unknown function of the component CoreText. This manipulation causes memory corruption. This vulnerability is registered as CVE-2015-5755. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical was found in Apple Mac OS X up to 10.10.4 (Operating System). Affected by this vulnerability is an unknown part of the component CoreText. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

CoreText in Apple iOS before 8.4.1 and OS X before 10.10.5 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted font file, a different vulnerability than CVE-2015-5761.

The weakness was published 08/11/2015 by Ilja van Sprundel with TaiG Jailbreak Team as HT205031 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is known as CVE-2015-5755 since 08/06/2015. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 86001 (Apple iTunes < 12.3 Multiple Vulnerabilities (credentialed check)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows. The commercial vulnerability scanner Qualys is able to test this issue with plugin 124144 (Apple iTunes Prior to 12.3 Multiple Vulnerabilities (APPLE-SA-2015-09-16-3)).

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 Tenable (86001), SecurityFocus (BID 76343†), SecurityTracker (ID 1033276†) and Vulnerability Center (SBV-52638†). Similar entries are available at VDB-73748, VDB-75568, VDB-76201 and VDB-76202. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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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: 🔍
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: 86001
Nessus Name: Apple iTunes < 12.3 Multiple Vulnerabilities (credentialed check)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 802962
OpenVAS Name: Apple iTunes Multiple Vulnerabilities Sep15 (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: Mac OS X 10.10.5

Timelineinfo

08/06/2015 🔍
08/11/2015 +5 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 🔍
09/17/2015 +32 days 🔍
06/12/2022 +2460 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT205031
Researcher: Ilja van Sprundel
Organization: TaiG Jailbreak Team
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-5755 (🔍)
GCVE (CVE): GCVE-0-2015-5755
GCVE (VulDB): GCVE-100-77185
SecurityFocus: 76343 - Apple Mac OS X and iOS Multiple Security Vulnerabilities
SecurityTracker: 1033276
Vulnerability Center: 52638 - Apple iOS <8.4.1 Remote Code Execution or DoS via a Maliciously Crafted Font File - CVE-2015-5755, Critical

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

Entryinfo

Created: 08/14/2015 14:33
Updated: 06/12/2022 06:52
Changes: 08/14/2015 14:33 (61), 12/23/2017 13:14 (20), 06/12/2022 06:52 (3)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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