Vulnerability Name:

CVE-2021-30666 (CCN-201121)

Assigned:2021-05-03
Published:2021-05-03
Updated:2022-07-12
Summary:A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 12.5.3. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..
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-119
CWE-20
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2021-30666

Source: XF
Type: UNKNOWN
apple-ios-cve202130666-bo(201121)

Source: CCN
Type: Apple security document HT212341
About the security content of iOS 12.5.3

Source: MISC
Type: Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT212341

Source: CCN
Type: CYBERSECURITY & INFRASTRUCTURE SECURITY AGENCY
KNOWN EXPLOITED VULNERABILITIES CATALOG

Vulnerable Configuration:Configuration 1:
  • cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version < 12.5.3)

    • Configuration RedHat 1:
  • cpe:/o:redhat:enterprise_linux:7:*:*:*:*:*:*:*

    • Configuration RedHat 2:
  • cpe:/o:redhat:enterprise_linux:7::client:*:*:*:*:*

    • Configuration RedHat 3:
  • cpe:/o:redhat:enterprise_linux:7::computenode:*:*:*:*:*

    • Configuration RedHat 4:
  • cpe:/o:redhat:enterprise_linux:7::server:*:*:*:*:*

    • Configuration RedHat 5:
  • cpe:/o:redhat:enterprise_linux:7::workstation:*:*:*:*:*

    • Configuration RedHat 6:
  • cpe:/a:redhat:enterprise_linux:8:*:*:*:*:*:*:*

    • Configuration RedHat 7:
  • cpe:/a:redhat:enterprise_linux:8::appstream:*:*:*:*:*

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

    • Configuration RedHat 9:
  • cpe:/o:redhat:enterprise_linux:8:*:*:*:*:*:*:*

    • Configuration RedHat 10:
  • cpe:/o:redhat:enterprise_linux:8::baseos:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/o:apple:ios:12.5.2:*:*:*:*:*:*:*

    • * 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: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: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: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:94648
    P
    		libjavascriptcoregtk-4_0-18-2.36.0-150400.2.13 on GA media (Moderate)
    2022-06-22
    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:119097
    P
    		Security update for webkit2gtk3 (Important)
    2022-02-17
    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: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:5226
    P
    		Security update for webkit2gtk3 (Important)
    2022-01-20
    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: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:20204451
    P
    		RHSA-2020:4451: GNOME security, bug fix, and enhancement update (Moderate)
    2020-11-04
    oval:com.redhat.rhsa:def:20204035
    P
    		RHSA-2020:4035: webkitgtk4 security, bug fix, and enhancement update (Moderate)
    2020-09-29
    BACK
    apple iphone os *
    apple ios 12.5.2