Apple Xcode up to 10.2 ld64 Code Execution

A vulnerability was found in Apple Xcode up to 10.2 (Programming Tool Software). It has been classified as critical. This affects an unknown function of the component ld64. The manipulation with an unknown input leads to a privilege escalation vulnerability (Code Execution). CWE is classifying the issue as CWE-269. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was shared 09/26/2019 by Pan ZhenPeng with Qihoo 360 as HT210609 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. This vulnerability is uniquely identified as CVE-2019-8721. 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 09/27/2019). The advisory points out:

Multiple issues in ld64 in the Xcode toolchains were addressed by updating to version ld64-507.4.

Upgrading to version 11.0 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The entries 142364, 142358, 142360 and 142361 are related to this item.

Type

Vendor

Name

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: ≈5.5
VulDB Temp Score: ≈5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Class: Privilege escalation / Code Execution (CWE-269)
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

Threat Intelligenceinfoedit

Threat: 🔍
Adversaries: 🔍
Geopolitics: 🔍
Economy: 🔍
Predictions: 🔍
Remediation: 🔍Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Xcode 11.0

09/19/2019 Countermeasure disclosed
09/26/2019 +7 days Advisory disclosed
09/27/2019 +1 days VulDB entry created
09/27/2019 +0 days VulDB last updateVendor: apple.com

Advisory: HT210609
Researcher: Pan ZhenPeng
Organization: Qihoo 360
Status: Confirmed

CVE: CVE-2019-8721 (🔒)
See also: 🔒

Created: 09/27/2019 07:39 AM
Complete: 🔍

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