Vulnerability CVE-2021-30993

Vulnerability Name:

CVE-2021-30993 (CCN-215083)

Assigned:

2021-08-24

Published:

2021-08-24

Updated:

2022-01-03

Summary:

A buffer overflow issue was addressed with improved memory handling. This issue is fixed in macOS Monterey 12.1, watchOS 8.3, iOS 15.2 and iPadOS 15.2, tvOS 15.2. An attacker in a privileged network position may be able to execute arbitrary code.

CVSS v3 Severity:

8.1 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)
7.1 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): High Privileges Required (PR): None User Interaction (UI): None
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:

6.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Medium Authentication (Au): None
Impact Metrics:	Confidentiality (C): Partial Integrity (I): Partial Availibility (A): Partial

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-120

Vulnerability Consequences:

Gain Access

References:

Source: MITRE
Type: CNA
CVE-2021-30993

Source: XF
Type: UNKNOWN
appleios-cve202130993-bo(215083)

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT212975

Source: CCN
Type: Apple security document HT212976
About the security content of iOS 15.2 and iPadOS 15.2

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT212976

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT212978

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT212980

Vulnerable Configuration:

Configuration 1:

cpe:/o:apple:ipados:*:*:*:*:*:*:*:* (Version < 15.2)

OR cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version < 15.2)

OR cpe:/o:apple:macos:*:*:*:*:*:*:*:* (Version >= 12.0 and < 12.1)

OR cpe:/o:apple:tvos:*:*:*:*:*:*:*:* (Version < 15.2)

OR cpe:/o:apple:watchos:*:*:*:*:*:*:*:* (Version < 8.3)

Denotes that component is vulnerable

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