Apple watchOS up to 9.4 WebKit buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Apple watchOS up to 9.4. Impacted is an unknown function of the component WebKit. Such manipulation leads to buffer overflow. This vulnerability is documented as CVE-2023-32423. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Apple watchOS up to 9.4 (Smartwatch Operating System) and classified as problematic. Affected by this issue is an unknown function of the component WebKit. The manipulation with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality. CVE summarizes:

A buffer overflow issue was addressed with improved memory handling. This issue is fixed in watchOS 9.5, tvOS 16.5, macOS Ventura 13.4, Safari 16.5, iOS 16.5 and iPadOS 16.5. Processing web content may disclose sensitive information.

The weakness was released 05/18/2023 by Ignacio Sanmillan as HT213764 as confirmed advisory (Website). The advisory is available at support.apple.com. This vulnerability is handled as CVE-2023-32423. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The advisory points out:

Processing web content may disclose sensitive information

The vulnerability scanner Nessus provides a plugin with the ID 212173 (Apple Safari 16.5 Multiple Vulnerabilities (102735)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 9.5 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 issue was addressed with improved memory handling.

The vulnerability is also documented in the databases at Tenable (212173) and EUVD (EUVD-2023-36667). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

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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Nessus ID: 212173
Nessus Name: Apple Safari 16.5 Multiple Vulnerabilities (102735)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: watchOS 9.5

Timelineinfo

05/08/2023 🔍
05/18/2023 +10 days 🔍
05/18/2023 +0 days 🔍
05/20/2023 +2 days 🔍
01/03/2026 +959 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT213764
Researcher: Ignacio Sanmillan
Status: Confirmed

CVE: CVE-2023-32423 (🔍)
GCVE (CVE): GCVE-0-2023-32423
GCVE (VulDB): GCVE-100-229586
EUVD: 🔍

Entryinfo

Created: 05/20/2023 08:35
Updated: 01/03/2026 02:08
Changes: 05/20/2023 08:35 (15), 05/20/2023 08:36 (4), 05/20/2023 08:39 (27), 06/15/2023 10:49 (1), 10/09/2024 20:48 (27), 12/09/2024 20:30 (2), 04/26/2025 15:00 (3), 01/03/2026 02:08 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion

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