Vulnerability Name:

CVE-2021-30837 (CCN-209689)

Assigned:2021-09-20
Published:2021-09-20
Updated:2021-11-04
Summary:A memory consumption issue was addressed with improved memory handling. This issue is fixed in iOS 15 and iPadOS 15, watchOS 8, tvOS 15. An application may be able to execute arbitrary code with kernel privileges.
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-2021-30837

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: FULLDISC
Type: Mailing List, Release Notes, Third Party Advisory
20211027 APPLE-SA-2021-10-26-10 Additional information for APPLE-SA-2021-09-20-2 watchOS 8

Source: FULLDISC
Type: Mailing List, Release Notes, Third Party Advisory
20211027 APPLE-SA-2021-10-26-11 Additional information for APPLE-SA-2021-09-20-3 tvOS 15

Source: XF
Type: UNKNOWN
appleios-cve202130837-code-exec(209689)

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: MISC
Type: Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT212815

Source: MISC
Type: Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT212819

Vulnerable Configuration:Configuration 1:
  • cpe:/o:apple:ipados:*:*:*:*:*:*:*:* (Version < 15.0)
  • OR cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version < 15.0)
  • OR cpe:/o:apple:tvos:*:*:*:*:*:*:*:* (Version < 15.0)

    • Configuration CCN 1:
  • cpe:/o:apple:ipados:14.5:*:*:*:*:*:*:*
  • OR cpe:/o:apple:ios:14.5:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    apple ipados *
    apple iphone os *
    apple tvos *
    apple ipados 14.5
    apple ios 14.5