Apple watchOS up to 6.1.1 IOAcceleratorFamily memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.0$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Apple watchOS up to 6.1.1. The affected element is an unknown function of the component IOAcceleratorFamily. Such manipulation leads to memory corruption. This vulnerability is documented as CVE-2020-3837. The attack needs to be performed locally. Additionally, an exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Apple watchOS up to 6.1.1 (Smartwatch Operating System). It has been rated as critical. Affected by this issue is an unknown code block of the component IOAcceleratorFamily. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability.

The weakness was released 01/28/2020 by Brandon Azad with Google Project Zero as HT210921 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2020-3837. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details are unknown but a public exploit is available. The advisory points out:

A memory corruption issue was addressed with improved memory handling.

The exploit is available at exploit-db.com. It is declared as attacked. This issue was added on 06/27/2022 to the CISA Known Exploited Vulnerabilities Catalog with a due date of 07/18/2022:

Apply updates per vendor instructions.

Upgrading to version 6.1.2 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Exploit-DB (48035). Entries connected to this vulnerability are available at VDB-150573, VDB-150591, VDB-150592 and VDB-150593. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.1
VulDB Meta Temp Score: 7.9

VulDB Base Score: 8.6
VulDB Temp Score: 8.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 7.8
CNA Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Access: Public
Status: Attacked
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍
KEV Notice: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: watchOS 6.1.2

Timelineinfo

12/18/2019 🔍
01/28/2020 +41 days 🔍
01/28/2020 +0 days 🔍
02/28/2020 +31 days 🔍
05/12/2025 +1900 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT210921
Researcher: Brandon Azad
Organization: Google Project Zero
Status: Confirmed

CVE: CVE-2020-3837 (🔍)
GCVE (CVE): GCVE-0-2020-3837
GCVE (VulDB): GCVE-100-150596
scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 02/28/2020 13:35
Updated: 05/12/2025 13:04
Changes: 02/28/2020 13:35 (47), 02/28/2020 13:40 (16), 04/06/2024 13:39 (19), 04/27/2024 08:56 (12), 09/09/2024 22:30 (1), 09/18/2024 22:11 (3), 01/29/2025 20:46 (11), 05/12/2025 13:04 (3)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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