Apple macOS up to 10.15.5 Audio memory corruption

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

A vulnerability has been found in Apple macOS up to 10.15.5 (Operating System) and classified as critical. Affected by this vulnerability is some unknown processing of the component Audio. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 13.6 and iPadOS 13.6, macOS Catalina 10.15.6, tvOS 13.4.8, watchOS 6.2.8. Processing a maliciously crafted audio file may lead to arbitrary code execution.

The weakness was disclosed 07/15/2020 by JunDong Xie and XingWei Li with Ant-financial Light-Year Security Lab as HT211289 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. This vulnerability is known as CVE-2020-9888 since 03/02/2020. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/03/2020). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:

An out-of-bounds read was addressed with improved bounds checking.

Upgrading to version 10.15.6 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The entries 158577, 158607, 158626 and 158645 are pretty similar.

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CVSSv3infoedit

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.7

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

NVD Base Score: 7.8
NVD Vector: 🔒

CVSSv2infoedit

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

Exploitinginfoedit

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfoedit

Threat: 🔍
Adversaries: 🔍
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Remediation: 🔍

Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔒
0-Day Time: 🔒
Exposure Time: 🔒

Upgrade: macOS 10.15.6

Timelineinfoedit

03/02/2020 CVE assigned
07/15/2020 +135 days Advisory disclosed
07/15/2020 +0 days Countermeasure disclosed
07/17/2020 +2 days VulDB entry created
11/03/2020 +109 days VulDB last update

Sourcesinfoedit

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

Advisory: HT211289
Researcher: JunDong Xie/XingWei Li
Organization: Ant-financial Light-Year Security Lab
Status: Confirmed

CVE: CVE-2020-9888 (🔒)
scip Labs: https://www.scip.ch/en/?labs.20180712
See also: 🔒

Entryinfoedit

Created: 07/17/2020 07:40 AM
Updated: 11/03/2020 08:44 PM
Changes: (8) vulnerability_cvss3_nvd_av vulnerability_cvss3_nvd_ac vulnerability_cvss3_nvd_pr vulnerability_cvss3_nvd_ui vulnerability_cvss3_nvd_s vulnerability_cvss3_nvd_c vulnerability_cvss3_nvd_i vulnerability_cvss3_nvd_a
Complete: 🔍

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