Vulnerability Name:

CVE-2021-1817 (CCN-200746)

Assigned:2020-12-08
Published:2021-04-26
Updated:2021-09-16
Summary:A memory corruption issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. Processing maliciously crafted web content may lead to arbitrary code execution.
CVSS v3 Severity:8.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
7.7 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/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): Network
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
8.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
7.7 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/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): Network
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
8.8 High (REDHAT CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
7.7 High (REDHAT Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/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): Network
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
9.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-787
CWE-20
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2021-1817

Source: XF
Type: UNKNOWN
apple-ios-cve20211817-code-exec(200746)

Source: CCN
Type: Apple security document HT212317
About the security content of iOS 14.5 and iPadOS 14.5

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT212317

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT212323

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT212324

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT212325

Source: CCN
Type: IBM Security Bulletin 6493729 (Cloud Pak for Security)
Cloud Pak for Security is vulnerable to several CVEs

Vulnerable Configuration:Configuration 1:
  • cpe:/o:apple:ipados:*:*:*:*:*:*:*:* (Version < 14.5)
  • OR cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version < 14.5)
  • OR cpe:/o:apple:macos:*:*:*:*:*:*:*:* (Version >= 11.0 and < 11.3)
  • OR cpe:/o:apple:tvos:*:*:*:*:*:*:*:* (Version < 14.5)
  • OR cpe:/o:apple:watchos:*:*:*:*:*:*:*:* (Version < 7.4)

    • Configuration RedHat 1:
  • cpe:/a:redhat:enterprise_linux:8:*:*:*:*:*:*:*

    • Configuration RedHat 2:
  • cpe:/a:redhat:enterprise_linux:8::appstream:*:*:*:*:*

    • Configuration RedHat 3:
  • cpe:/a:redhat:enterprise_linux:8::crb:*:*:*:*:*

    • Configuration RedHat 4:
  • cpe:/o:redhat:enterprise_linux:8:*:*:*:*:*:*:*

    • Configuration RedHat 5:
  • cpe:/o:redhat:enterprise_linux:8::baseos:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/o:apple:ios:14.4:*:*:*:*:*:*:*
  • OR cpe:/o:apple:ipados:14.4:*:*:*:*:*:*:*
  • AND
  • cpe:/a:ibm:cloud_pak_for_security:1.7.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:cloud_pak_for_security:1.7.1.0:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:cloud_pak_for_security:1.7.2.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:8033
    P
    		libjavascriptcoregtk-5_0-0-2.38.6-150400.4.39.1 on GA media (Moderate)
    2023-06-20
    oval:org.opensuse.security:def:7941
    P
    		libjavascriptcoregtk-4_1-0-2.38.6-150400.4.39.1 on GA media (Moderate)
    2023-06-12
    oval:org.opensuse.security:def:7603
    P
    		libjavascriptcoregtk-4_0-18-2.38.6-150400.4.39.1 on GA media (Moderate)
    2023-06-12
    oval:org.opensuse.security:def:3018
    P
    		augeas-1.10.1-2.6 on GA media (Moderate)
    2022-06-28
    oval:org.opensuse.security:def:3320
    P
    		pam_yubico-2.26-1.25 on GA media (Moderate)
    2022-06-28
    oval:org.opensuse.security:def:3401
    P
    		xen-4.12.1_06-1.1 on GA media (Moderate)
    2022-06-28
    oval:org.opensuse.security:def:94950
    P
    		libjavascriptcoregtk-4_1-0-2.36.0-150400.2.13 on GA media (Moderate)
    2022-06-22
    oval:org.opensuse.security:def:95031
    P
    		libjavascriptcoregtk-5_0-0-2.36.0-150400.2.12 on GA media (Moderate)
    2022-06-22
    oval:org.opensuse.security:def:94648
    P
    		libjavascriptcoregtk-4_0-18-2.36.0-150400.2.13 on GA media (Moderate)
    2022-06-22
    oval:org.opensuse.security:def:119097
    P
    		Security update for webkit2gtk3 (Important)
    2022-02-17
    oval:org.opensuse.security:def:119212
    P
    		Security update for webkit2gtk3 (Important)
    2022-01-25
    oval:org.opensuse.security:def:101759
    P
    		Security update for webkit2gtk3 (Important)
    2022-01-25
    oval:org.opensuse.security:def:118715
    P
    		Security update for webkit2gtk3 (Important)
    2022-01-25
    oval:org.opensuse.security:def:119402
    P
    		Security update for webkit2gtk3 (Important)
    2022-01-25
    oval:org.opensuse.security:def:898
    P
    		Security update for webkit2gtk3 (Important)
    2022-01-25
    oval:org.opensuse.security:def:118905
    P
    		Security update for webkit2gtk3 (Important)
    2022-01-25
    oval:org.opensuse.security:def:119587
    P
    		Security update for webkit2gtk3 (Important)
    2022-01-25
    oval:org.opensuse.security:def:1070
    P
    		Security update for webkit2gtk3 (Important)
    2022-01-25
    oval:org.opensuse.security:def:101609
    P
    		Security update for webkit2gtk3 (Important)
    2022-01-25
    oval:org.opensuse.security:def:125702
    P
    		Security update for webkit2gtk3 (Important)
    2022-01-20
    oval:org.opensuse.security:def:6020
    P
    		Security update for webkit2gtk3 (Important)
    2022-01-20
    oval:org.opensuse.security:def:126868
    P
    		Security update for webkit2gtk3 (Important)
    2022-01-20
    oval:org.opensuse.security:def:127265
    P
    		Security update for webkit2gtk3 (Important)
    2022-01-20
    oval:org.opensuse.security:def:5226
    P
    		Security update for webkit2gtk3 (Important)
    2022-01-20
    oval:org.opensuse.security:def:112660
    P
    		libjavascriptcoregtk-4_0-18-2.32.4-1.1 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:106141
    P
    		libjavascriptcoregtk-4_0-18-2.32.4-1.1 on GA media (Moderate)
    2021-10-01
    oval:com.redhat.rhsa:def:20211586
    P
    		RHSA-2021:1586: GNOME security, bug fix, and enhancement update (Moderate)
    2021-05-18
    BACK
    apple ipados *
    apple iphone os *
    apple macos *
    apple tvos *
    apple watchos *
    apple ios 14.4
    apple ipados 14.4
    ibm cloud pak for security 1.7.0.0
    ibm cloud pak for security 1.7.1.0
    ibm cloud pak for security 1.7.2.0