Vulnerability Details : CVE-2021-30983
A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 15.2 and iPadOS 15.2. An application may be able to execute arbitrary code with kernel privileges.
Vulnerability category: OverflowExecute code
Products affected by CVE-2021-30983
- cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
CVE-2021-30983 is in the CISA Known Exploited Vulnerabilities Catalog
CISA vulnerability name:
Apple iOS and iPadOS Buffer Overflow Vulnerability
CISA required action:
Apply updates per vendor instructions.
CISA description:
Apple iOS and iPadOS contain a buffer overflow vulnerability that could allow an application to execute code with kernel privileges.
Notes:
https://nvd.nist.gov/vuln/detail/CVE-2021-30983
Added on
2022-06-27
Action due date
2022-07-18
Exploit prediction scoring system (EPSS) score for CVE-2021-30983
0.14%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 50 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-30983
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
9.3
|
HIGH | AV:N/AC:M/Au:N/C:C/I:C/A:C |
8.6
|
10.0
|
NIST | |
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2021-30983
-
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-30983
-
https://support.apple.com/en-us/HT212976
About the security content of iOS 15.2 and iPadOS 15.2 - Apple SupportVendor Advisory
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