CVE-2021-30883
Apple Multiple Products Memory Corruption Vulnerability - [Actively Exploited]
Description
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..
INFO
Published Date :
Aug. 24, 2021, 7:15 p.m.
Last Modified :
Jan. 29, 2025, 6:15 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CISA KEV (Known Exploited Vulnerabilities)
For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.
Apple iOS, macOS, watchOS, and tvOS contain a memory corruption vulnerability that could allow for remote code execution.
Apply updates per vendor instructions.
https://nvd.nist.gov/vuln/detail/CVE-2021-30883
Affected Products
The following products are affected by CVE-2021-30883
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Update iOS to version 14.8.1 or later.
- Update iOS to version 15.0.2 or later.
- Update macOS to version 11.6.1 or later.
- Update macOS to version 12.0.1 or later.
Public PoC/Exploit Available at Github
CVE-2021-30883 has a 8 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-30883.
| URL | Resource |
|---|---|
| https://support.apple.com/en-us/HT212846 | Vendor Advisory |
| https://support.apple.com/en-us/HT212868 | Vendor Advisory |
| https://support.apple.com/en-us/HT212869 | Vendor Advisory |
| https://support.apple.com/en-us/HT212872 | Vendor Advisory |
| https://support.apple.com/en-us/HT212874 | Vendor Advisory |
| https://support.apple.com/en-us/HT212876 | Vendor Advisory |
| https://support.apple.com/en-us/HT212846 | Vendor Advisory |
| https://support.apple.com/en-us/HT212868 | Vendor Advisory |
| https://support.apple.com/en-us/HT212869 | Vendor Advisory |
| https://support.apple.com/en-us/HT212872 | Vendor Advisory |
| https://support.apple.com/en-us/HT212874 | Vendor Advisory |
| https://support.apple.com/en-us/HT212876 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-30883 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-30883
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Contains List of CVE's that I have found (Individual + Collaborative work)
Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.
cisa-kev vulnerability 0day cisa exploits
Gexo is an ????-tethered (probably has to be rootless) iOS 15, 15.0.1, ~~15.0.2~~, 15.1 Beta 3, 15.1, & 15.1.1 jailbreak
None
C
None
C
None
C
Config files for my GitHub profile.
config github-config
Here is some resources about macOS/iOS system security.
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-30883 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-30883 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Modified Analysis by [email protected]
Mar. 07, 2025
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:apple:macos:12.0:*:*:*:*:*:*:* *cpe:2.3:o:apple:ipad_os:*:*:*:*:*:*:*:* versions from (excluding) 14.8.1 *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions from (excluding) 14.8.1 *cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* versions from (including) 11.0 from (excluding) 11.6.1 *cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* versions from (excluding) 15.1 *cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* versions from (excluding) 8.1 *cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* versions from (including) 15.0 from (excluding) 15.0.2 *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions from (including) 15.0 from (excluding) 15.0.2 OR *cpe:2.3:o:apple:macos:12.0:*:*:*:*:*:*:* *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions from (excluding) 14.8.1 *cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* versions from (including) 11.0 from (excluding) 11.6.1 *cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* versions from (excluding) 15.1 *cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* versions from (excluding) 8.1 *cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* versions from (excluding) 14.8.1 *cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* versions from (including) 15.0 from (excluding) 15.0.2 *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions from (including) 15.0 from (excluding) 15.0.2 -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jan. 29, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Added CWE CWE-787 -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://support.apple.com/en-us/HT212846 Added Reference https://support.apple.com/en-us/HT212868 Added Reference https://support.apple.com/en-us/HT212869 Added Reference https://support.apple.com/en-us/HT212872 Added Reference https://support.apple.com/en-us/HT212874 Added Reference https://support.apple.com/en-us/HT212876 -
Modified Analysis by [email protected]
Jul. 02, 2024
Action Type Old Value New Value Changed Reference Type https://support.apple.com/en-us/HT212846 No Types Assigned https://support.apple.com/en-us/HT212846 Vendor Advisory Changed Reference Type https://support.apple.com/en-us/HT212868 No Types Assigned https://support.apple.com/en-us/HT212868 Vendor Advisory Changed Reference Type https://support.apple.com/en-us/HT212869 No Types Assigned https://support.apple.com/en-us/HT212869 Vendor Advisory Changed Reference Type https://support.apple.com/en-us/HT212872 No Types Assigned https://support.apple.com/en-us/HT212872 Vendor Advisory Changed Reference Type https://support.apple.com/en-us/HT212874 No Types Assigned https://support.apple.com/en-us/HT212874 Vendor Advisory Changed Reference Type https://support.apple.com/en-us/HT212876 No Types Assigned https://support.apple.com/en-us/HT212876 Vendor Advisory Changed CPE Configuration OR *cpe:2.3:o:apple:ipad_os:*:*:*:*:*:*:*:* versions up to (excluding) 14.8.1 *cpe:2.3:o:apple:ipados:15.0:*:*:*:*:*:*:* *cpe:2.3:o:apple:ipados:15.0.1:*:*:*:*:*:*:* *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions up to (excluding) 14.8.1 *cpe:2.3:o:apple:iphone_os:15.0:*:*:*:*:*:*:* *cpe:2.3:o:apple:iphone_os:15.0.1:*:*:*:*:*:*:* *cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* versions from (including) 11.0 up to (excluding) 11.6.1 *cpe:2.3:o:apple:macos:12.0:*:*:*:*:*:*:* *cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* versions up to (excluding) 15.1 *cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* versions up to (excluding) 8.1 OR *cpe:2.3:o:apple:ipad_os:*:*:*:*:*:*:*:* versions up to (excluding) 14.8.1 *cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* versions from (including) 15.0 up to (excluding) 15.0.2 *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions up to (excluding) 14.8.1 *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions from (including) 15.0 up to (excluding) 15.0.2 *cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* versions from (including) 11.0 up to (excluding) 11.6.1 *cpe:2.3:o:apple:macos:12.0:*:*:*:*:*:*:* *cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* versions up to (excluding) 15.1 *cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* versions up to (excluding) 8.1 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference Apple Inc. https://support.apple.com/en-us/HT212869 [No types assigned] Added Reference Apple Inc. https://support.apple.com/en-us/HT212872 [No types assigned] Added Reference Apple Inc. https://support.apple.com/en-us/HT212846 [No types assigned] Added Reference Apple Inc. https://support.apple.com/en-us/HT212868 [No types assigned] Added Reference Apple Inc. https://support.apple.com/en-us/HT212874 [No types assigned] Added Reference Apple Inc. https://support.apple.com/en-us/HT212876 [No types assigned] Removed Reference MITRE https://support.apple.com/en-us/HT212876 Removed Reference MITRE https://support.apple.com/en-us/HT212874 Removed Reference MITRE https://support.apple.com/en-us/HT212846 Removed Reference MITRE https://support.apple.com/en-us/HT212868 Removed Reference MITRE https://support.apple.com/en-us/HT212869 Removed Reference MITRE https://support.apple.com/en-us/HT212872 -
CVE Source Update by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Changed Source MITRE Apple Inc. -
CPE Deprecation Remap by [email protected]
Jan. 09, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:apple:ipad_os:15.0:*:*:*:*:*:*:* OR *cpe:2.3:o:apple:ipados:15.0:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Jan. 09, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:apple:ipad_os:15.0.1:*:*:*:*:*:*:* OR *cpe:2.3:o:apple:ipados:15.0.1:*:*:*:*:*:*:* -
Initial Analysis by [email protected]
Nov. 01, 2021
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:C/I:C/A:C) Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Changed Reference Type https://support.apple.com/en-us/HT212846 No Types Assigned https://support.apple.com/en-us/HT212846 Vendor Advisory Changed Reference Type https://support.apple.com/en-us/HT212868 No Types Assigned https://support.apple.com/en-us/HT212868 Vendor Advisory Changed Reference Type https://support.apple.com/en-us/HT212869 No Types Assigned https://support.apple.com/en-us/HT212869 Vendor Advisory Changed Reference Type https://support.apple.com/en-us/HT212872 No Types Assigned https://support.apple.com/en-us/HT212872 Vendor Advisory Changed Reference Type https://support.apple.com/en-us/HT212874 No Types Assigned https://support.apple.com/en-us/HT212874 Vendor Advisory Changed Reference Type https://support.apple.com/en-us/HT212876 No Types Assigned https://support.apple.com/en-us/HT212876 Vendor Advisory Added CWE NIST CWE-787 Added CPE Configuration OR *cpe:2.3:o:apple:ipad_os:*:*:*:*:*:*:*:* versions up to (excluding) 14.8.1 *cpe:2.3:o:apple:ipad_os:15.0:*:*:*:*:*:*:* *cpe:2.3:o:apple:ipad_os:15.0.1:*:*:*:*:*:*:* *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions up to (excluding) 14.8.1 *cpe:2.3:o:apple:iphone_os:15.0:*:*:*:*:*:*:* *cpe:2.3:o:apple:iphone_os:15.0.1:*:*:*:*:*:*:* *cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* versions from (including) 11.0 up to (excluding) 11.6.1 *cpe:2.3:o:apple:macos:12.0:*:*:*:*:*:*:* *cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* versions up to (excluding) 15.1 *cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* versions up to (excluding) 8.1 -
CVE Modified by [email protected]
Oct. 28, 2021
Action Type Old Value New Value Changed Description ** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none. Reason: This candidate was withdrawn by the CVE program. Notes: none. 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.. Added Reference https://support.apple.com/en-us/HT212876 [No Types Assigned] Added Reference https://support.apple.com/en-us/HT212874 [No Types Assigned] Added Reference https://support.apple.com/en-us/HT212846 [No Types Assigned] Added Reference https://support.apple.com/en-us/HT212868 [No Types Assigned] Added Reference https://support.apple.com/en-us/HT212869 [No Types Assigned] Added Reference https://support.apple.com/en-us/HT212872 [No Types Assigned] -
CVE Unrejected by [email protected]
Oct. 28, 2021
Action Type Old Value New Value -
CVE Rejected by [email protected]
Aug. 24, 2021
Action Type Old Value New Value
Vulnerability Scoring Details
Base CVSS Score: 7.8
Base CVSS Score: 9.3
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.50 }} -0.04%
score
0.65130
percentile