Apple Xcode up to 10.2 ld64 input validation

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple Xcode up to 10.2. It has been rated as critical. This affects an unknown function of the component ld64. Performing a manipulation results in input validation. This vulnerability is cataloged as CVE-2019-8721. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

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 input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Multiple issues in ld64 in the Xcode toolchains were addressed by updating to version ld64-507.4. This issue is fixed in Xcode 11.0. Compiling code without proper input validation could lead to arbitrary code execution with user privilege.

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 since 02/18/2019. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. 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 VDB-142364, VDB-142358, VDB-142360 and VDB-142361 are related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Xcode 11.0

Timelineinfo

02/18/2019 🔍
09/19/2019 +213 days 🔍
09/26/2019 +7 days 🔍
09/27/2019 +1 days 🔍
09/09/2020 +348 days 🔍

Sourcesinfo

Vendor: apple.com

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

CVE: CVE-2019-8721 (🔍)
GCVE (CVE): GCVE-0-2019-8721
GCVE (VulDB): GCVE-100-142359
See also: 🔍

Entryinfo

Created: 09/27/2019 07:39
Updated: 09/09/2020 18:45
Changes: 09/27/2019 07:39 (64), 09/09/2020 18:45 (1)
Complete: 🔍
Cache ID: 216::103

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