Apple watchOS FontParser buffer overflow

Summaryinfo

A vulnerability, which was classified as critical, was found in Apple watchOS. The affected element is an unknown function of the component FontParser. Such manipulation leads to buffer overflow. This vulnerability is traded as CVE-2020-9962. The attack may be launched remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Apple watchOS (Smartwatch Operating System) (affected version not known). Affected by this issue is some unknown functionality of the component FontParser. 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, integrity, and availability.

The weakness was shared 12/14/2020 by Yiğit Can Yilmaz as confirmed advisory (Website). This vulnerability is handled as CVE-2020-9962 since 03/02/2020. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

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

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Smartwatch Operating System

Vendor

• Apple

Name

• watchOS

License

• commercial

Website

• Vendor: https://www.apple.com/

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Once again VulDB remains the best source for vulnerability data.

Discussion