Apple macOS up to 11.0.1 FontParser buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple macOS up to 11.0.1. It has been declared as critical. Impacted is an unknown function of the component FontParser. Executing a manipulation can lead to buffer overflow. This vulnerability is registered as CVE-2020-9962. It is possible to launch the attack remotely. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Apple macOS up to 11.0.1 (Operating System) and classified as critical. This vulnerability affects some unknown processing of the component FontParser. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was published 12/14/2020 by Yiğit Can Yilmaz as HT212011 as confirmed advisory (Website). The advisory is available at support.apple.com. This vulnerability was named CVE-2020-9962. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The advisory points out:

Processing a maliciously crafted image may lead to arbitrary code execution

Upgrading to version 11.1 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

A buffer overflow was addressed with improved size validation.

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Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / 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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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: macOS 11.1

Timelineinfo

03/02/2020 🔍
12/14/2020 +287 days 🔍
12/14/2020 +0 days 🔍
12/15/2020 +1 days 🔍
12/17/2020 +2 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT212011
Researcher: Yiğit Can Yilmaz
Status: Confirmed

CVE: CVE-2020-9962 (🔍)
GCVE (CVE): GCVE-0-2020-9962
GCVE (VulDB): GCVE-100-166270
scip Labs: https://www.scip.ch/en/?labs.20180712

Entryinfo

Created: 12/15/2020 14:40
Updated: 12/17/2020 19:06
Changes: 12/15/2020 14:40 (19), 12/15/2020 14:43 (28), 12/17/2020 19:06 (4)
Complete: 🔍
Cache ID: 216::103

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