Vulnerability Name:

CVE-2021-30838 (CCN-209767)

Assigned:2021-09-20
Published:2021-09-20
Updated:2022-02-11
Summary:A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 15 and iPadOS 15. A malicious application may be able to execute arbitrary code with system privileges on devices with an Apple Neural Engine.
CVSS v3 Severity:7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
6.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
7.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
6.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:9.3 High (CVSS v2 Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
6.8 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2021-30838

Source: FULLDISC
Type: Mailing List, Release Notes, Third Party Advisory
20211027 APPLE-SA-2021-10-26-9 Additional information for APPLE-SA-2021-09-20-1 iOS 15 and iPadOS 15

Source: XF
Type: UNKNOWN
apple-ios-cve202130838-code-exec(209767)

Source: CCN
Type: Apple security document HT212814
About the security content of iOS 15 and iPadOS 15

Source: MISC
Type: Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT212814

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/kb/HT212804

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/kb/HT212807

Vulnerable Configuration:Configuration 1:
  • cpe:/o:apple:ipados:*:*:*:*:*:*:*:* (Version < 14.8)
  • OR cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version < 14.8)
  • OR cpe:/o:apple:macos:*:*:*:*:*:*:*:* (Version >= 11.0 and < 11.6)

    • Configuration CCN 1:
  • cpe:/o:apple:iphone_os:14.7:*:*:*:*:*:*:*
  • OR cpe:/o:apple:ipados:14.7:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    apple ipados *
    apple iphone os *
    apple macos *
    apple iphone os 14.7
    apple ipados 14.7