Apple tvOS up to 13.4.4 FontParser out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple tvOS up to 13.4.4 and classified as critical. The impacted element is an unknown function of the component FontParser. The manipulation results in out-of-bounds write. This vulnerability is reported as CVE-2020-9816. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Apple tvOS up to 13.4.4 (Digital Media Player). Affected is an unknown code of the component FontParser. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was disclosed 05/26/2020 by Peter Nguyen Vu Hoang with Zero Day Initiative as HT211171 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is traded as CVE-2020-9816. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The advisory points out:

An out-of-bounds write issue was addressed with improved bounds checking.

Upgrading to version 13.4.5 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The entries VDB-155678, VDB-155707, VDB-155708 and VDB-155709 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.9

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

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
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: tvOS 13.4.5

Timelineinfo

03/02/2020 🔍
05/26/2020 +85 days 🔍
05/26/2020 +0 days 🔍
05/29/2020 +3 days 🔍
10/19/2020 +143 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT211171
Researcher: Peter Nguyen Vu Hoang
Organization: Zero Day Initiative
Status: Confirmed

CVE: CVE-2020-9816 (🔍)
GCVE (CVE): GCVE-0-2020-9816
GCVE (VulDB): GCVE-100-155712
See also: 🔍

Entryinfo

Created: 05/30/2020 00:29
Updated: 10/19/2020 18:52
Changes: 05/30/2020 00:29 (47), 05/30/2020 00:34 (16), 10/19/2020 18:52 (2)
Complete: 🔍
Cache ID: 216::103

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