Apple iOS/iPadOS up to 13.4.1 Wi-Fi double free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.4$25k-$100k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Apple iOS and iPadOS up to 13.4.1. This impacts an unknown function of the component Wi-Fi. Such manipulation leads to double free. This vulnerability is referenced as CVE-2020-9844. It is possible to launch the attack remotely. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple iOS and iPadOS up to 13.4.1 (Smartphone Operating System). It has been rated as very critical. Affected by this issue is some unknown functionality of the component Wi-Fi. The manipulation with an unknown input leads to a double free vulnerability. Using CWE to declare the problem leads to CWE-415. The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. Impacted is confidentiality, integrity, and availability. CVE summarizes:

A double free issue was addressed with improved memory management. This issue is fixed in iOS 13.5 and iPadOS 13.5, macOS Catalina 10.15.5. A remote attacker may be able to cause unexpected system termination or corrupt kernel memory.

The weakness was published 05/20/2020 by Ian Beer with Google Project Zero as HT211168 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2020-9844. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $25k-$100k (estimation calculated on 05/30/2020). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:

A double free issue was addressed with improved memory management.

Upgrading to version 13.5 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

Similar entries are available at VDB-155738, VDB-155739, VDB-155740 and VDB-155741. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.5

VulDB Base Score: 10.0
VulDB Temp Score: 9.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Double free
CWE: CWE-415 / 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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: iOS/iPadOS 13.5

Timelineinfo

03/02/2020 🔍
05/20/2020 +79 days 🔍
05/20/2020 +0 days 🔍
05/29/2020 +9 days 🔍
10/20/2020 +144 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT211168
Researcher: Ian Beer
Organization: Google Project Zero
Status: Confirmed

CVE: CVE-2020-9844 (🔍)
GCVE (CVE): GCVE-0-2020-9844
GCVE (VulDB): GCVE-100-155780
scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍

Entryinfo

Created: 05/30/2020 00:56
Updated: 10/20/2020 10:47
Changes: 05/30/2020 00:56 (48), 05/30/2020 01:01 (17), 10/20/2020 10:47 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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