VDB-158625 · CVE-2020-9889 · HT211290

Apple tvOS up to 13.4.7 Audio memory corruption

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.0	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Apple tvOS up to 13.4.7. It has been classified as critical. Impacted is an unknown function of the component Audio. Performing a manipulation results in memory corruption. This vulnerability is known as CVE-2020-9889. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical has been found in Apple tvOS up to 13.4.7 (Digital Media Player). This affects an unknown code block of the component Audio. 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 weakness was published 07/15/2020 by JunDong Xie and XingWei Li with Ant-financial Light-Year Security Lab as HT211290 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is uniquely identified as CVE-2020-9889. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The advisory points out:

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

Upgrading to version 13.4.8 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

Similar entries are available at VDB-158580, VDB-158606, VDB-158626 and VDB-158627. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Digital Media Player

Vendor

Apple

Name

tvOS

Version

License

commercial

Website

Vendor: https://www.apple.com/

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

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: tvOS 13.4.8

Timelineinfo

03/02/2020 🔍
07/15/2020 +135 days 🔍
07/15/2020 +0 days 🔍
07/16/2020 +1 days 🔍
11/03/2020 +110 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT211290
Researcher: JunDong Xie, XingWei Li
Organization: Ant-financial Light-Year Security Lab
Status: Confirmed

CVE: CVE-2020-9889 (🔍)
GCVE (CVE): GCVE-0-2020-9889
GCVE (VulDB): GCVE-100-158625
See also: 🔍

Entryinfo

Created: 07/16/2020 20:26
Updated: 11/03/2020 16:57
Changes: 07/16/2020 20:26 (46), 07/16/2020 20:31 (2), 11/03/2020 16:54 (2), 11/03/2020 16:57 (8)
Complete: 🔍
Cache ID: 216::103

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