Apple iOS/iPadOS up to 13.5.0 Kernel Application resource consumption

CVSS Meta Temp Score
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CTI Interest Score
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8.1$5k-$25k0.00

A vulnerability, which was classified as critical, was found in Apple iOS and iPadOS up to 13.5.0 (Smartphone Operating System). This affects an unknown part of the component Kernel. The manipulation as part of a Application leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

A memory consumption issue was addressed with improved memory handling. This issue is fixed in iOS 13.5.1 and iPadOS 13.5.1, macOS Catalina 10.15.5 Supplemental Update, tvOS 13.4.6, watchOS 6.2.6. An application may be able to execute arbitrary code with kernel privileges.

The weakness was presented 06/01/2020 by unc0ver as HT211214 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. This vulnerability is uniquely identified as CVE-2020-9859 since 03/02/2020. Attacking locally is a requirement. A authentication is necessary for exploitation. Technical details are unknown but an exploit is available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 04/20/2024). It is expected to see the exploit prices for this product increasing in the near future.

It is declared as highly functional. The CISA Known Exploited Vulnerabilities Catalog lists this issue since 11/03/2021 with a due date of 05/03/2022:

Apply updates per vendor instructions.

Upgrading to version 13.5.1 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

See 156244, 156245 and 156246 for similar entries.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.3
VulDB Meta Temp Score: 8.1

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Local: Yes
Remote: No

Availability: 🔍
Status: Highly functional

EPSS Score: 🔍
EPSS Percentile: 🔍

KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍

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 13.5.1

Timelineinfo

03/02/2020 🔍
06/01/2020 +91 days 🔍
06/01/2020 +0 days 🔍
06/06/2020 +5 days 🔍
04/20/2024 +1414 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT211214
Researcher: unc0ver
Status: Confirmed

CVE: CVE-2020-9859 (🔍)
scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍

Entryinfo

Created: 06/06/2020 09:18
Updated: 04/20/2024 11:02
Changes: 06/06/2020 09:18 (46), 06/06/2020 09:22 (18), 04/20/2024 11:02 (28)
Complete: 🔍

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