Apple iOS/iPadOS up to 15.0.1 IOMobileFrameBuffer memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.7$5k-$25k0.00

Summaryinfo

A vulnerability was found in Apple iOS and iPadOS up to 15.0.1. It has been classified as critical. This affects an unknown function of the component IOMobileFrameBuffer. Performing a manipulation results in memory corruption. This vulnerability was named CVE-2021-30883. The attack needs to be approached locally. In addition, an exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical has been found in Apple iOS and iPadOS up to 15.0.1 (Smartphone Operating System). This affects an unknown code block of the component IOMobileFrameBuffer. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 15.0.2 and iPadOS 15.0.2, macOS Monterey 12.0.1, iOS 14.8.1 and iPadOS 14.8.1, tvOS 15.1, watchOS 8.1, macOS Big Sur 11.6.1. An application may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited..

The weakness was presented 10/12/2021 as HT212846. It is possible to read the advisory at support.apple.com. This vulnerability is uniquely identified as CVE-2021-30883. 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 01/30/2025). It is expected to see the exploit prices for this product increasing in the near future.

It is declared as attacked. The CISA Known Exploited Vulnerabilities Catalog lists this issue since 05/23/2022 with a due date of 06/13/2022:

Apply updates per vendor instructions.

Upgrading to version 15.0.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Zero-Day.cz (670). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.7

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 7.8
CNA Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Attacked

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KEV Remediation: 🔍
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Zero-Day.cz: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: iOS/iPadOS 15.0.2

Timelineinfo

04/13/2021 🔍
10/12/2021 +182 days 🔍
10/12/2021 +0 days 🔍
01/30/2025 +1206 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT212846
Status: Confirmed

CVE: CVE-2021-30883 (🔍)
GCVE (CVE): GCVE-0-2021-30883
GCVE (VulDB): GCVE-100-184203
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 10/12/2021 12:57
Updated: 01/30/2025 02:34
Changes: 10/12/2021 12:57 (42), 10/14/2021 19:04 (1), 04/26/2024 09:55 (28), 06/23/2024 23:45 (2), 09/22/2024 23:32 (1), 01/30/2025 02:34 (28)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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