Apple iOS/iPadOS up to 14.7.1 CoreGraphics FORCEDENTRY integer overflow

CVSS Meta Temp Score
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CTI Interest Score
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7.2$5k-$25k0.00

Summaryinfo

A vulnerability described as critical has been identified in Apple iOS and iPadOS up to 14.7.1. The impacted element is an unknown function of the component CoreGraphics. Executing a manipulation can lead to integer overflow. This vulnerability is registered as CVE-2021-30860. It is possible to launch the attack remotely. Furthermore, an exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical was found in Apple iOS and iPadOS up to 14.7.1 (Smartphone Operating System). This vulnerability affects an unknown code block of the component CoreGraphics. The manipulation with an unknown input leads to a integer overflow vulnerability. The CWE definition for the vulnerability is CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was published 09/13/2021 with Citizen Lab as HT212807 as confirmed advisory (Website). The advisory is available at support.apple.com. This vulnerability was named CVE-2021-30860. Successful exploitation requires user interaction by the victim. Technical details are unknown but a private exploit is available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 02/03/2025). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:

Processing a maliciously crafted PDF may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

It is declared as attacked. This issue was added on 11/03/2021 to the CISA Known Exploited Vulnerabilities Catalog with a due date of 11/17/2021:

Apply updates per vendor instructions.

Upgrading to version 14.8 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

An integer overflow was addressed with improved input validation.

The vulnerability is also documented in the vulnerability database at Zero-Day.cz (659). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.2

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
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: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Access: Private
Status: Attacked

EPSS Score: 🔍
EPSS Percentile: 🔍

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

Price Prediction: 🔍
Current Price Estimation: 🔍

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Zero-Day.cz: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: iOS/iPadOS 14.8

Timelineinfo

04/13/2021 🔍
09/13/2021 +153 days 🔍
09/13/2021 +0 days 🔍
09/14/2021 +1 days 🔍
05/03/2025 +1327 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT212807
Organization: Citizen Lab
Status: Confirmed

CVE: CVE-2021-30860 (🔍)
GCVE (CVE): GCVE-0-2021-30860
GCVE (VulDB): GCVE-100-182530
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 09/14/2021 08:28
Updated: 05/03/2025 12:01
Changes: 09/14/2021 08:28 (18), 09/14/2021 08:29 (2), 09/14/2021 08:35 (28), 09/14/2021 13:48 (4), 09/16/2021 14:09 (20), 04/21/2024 18:06 (24), 06/25/2024 08:44 (2), 09/15/2024 00:30 (1), 02/03/2025 16:17 (12), 05/03/2025 12:01 (3)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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