Apple Safari up to 12.0.3 WebKit memory corruption

Summaryinfo

A vulnerability labeled as critical has been found in Apple Safari up to 12.0.3. This affects an unknown function of the component WebKit. Such manipulation leads to memory corruption. This vulnerability is listed as CVE-2019-8562. The attack may be performed from remote. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Apple Safari up to 12.0.3 (Web Browser). Affected by this issue is an unknown part of the component WebKit. 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. CVE summarizes:

A memory corruption issue was addressed with improved validation. This issue is fixed in iOS 12.2, tvOS 12.2, Safari 12.1, iTunes 12.9.4 for Windows. A sandboxed process may be able to circumvent sandbox restrictions.

The bug was discovered 03/25/2019. The weakness was presented 03/25/2019 as HT209603 as confirmed advisory (Website). The advisory is available at support.apple.com. This vulnerability is handled as CVE-2019-8562 since 02/18/2019. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 05/20/2020). The advisory points out:

A memory corruption issue was addressed with improved validation.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 371710 (Apple iTunes for Windows Prior to 12.9.4 Multiple Vulnerabilities (HT209604)).

Upgrading to version 12.1 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

See VDB-132272, VDB-132310, VDB-132320 and VDB-132321 for similar entries. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Web Browser

Vendor

• Apple

Name

• Safari

Version

• 12.0.0
• 12.0.1
• 12.0.2
• 12.0.3

License

• commercial

Website

• Vendor: https://www.apple.com/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

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

Discussion