Vulnerability Name:

CVE-2020-27918 (CCN-191303)

Assigned:2020-11-05
Published:2020-11-05
Updated:2023-01-09
Summary:A use after free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.1, iOS 14.2 and iPadOS 14.2, iCloud for Windows 11.5, Safari 14.0.1, tvOS 14.2, iTunes 12.11 for Windows. Processing maliciously crafted web content may lead to arbitrary code execution.
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
7.8 High (REDHAT 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 (REDHAT 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-416
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2020-27918

Source: product-security@apple.com
Type: Mailing List, Third Party Advisory
product-security@apple.com

Source: product-security@apple.com
Type: Mailing List, Third Party Advisory
product-security@apple.com

Source: XF
Type: UNKNOWN
apple-ios-cve202027918-code-exec(191303)

Source: product-security@apple.com
Type: Mailing List, Third Party Advisory
product-security@apple.com

Source: product-security@apple.com
Type: Mailing List, Third Party Advisory
product-security@apple.com

Source: product-security@apple.com
Type: Mailing List, Third Party Advisory
product-security@apple.com

Source: product-security@apple.com
Type: Third Party Advisory
product-security@apple.com

Source: product-security@apple.com
Type: Vendor Advisory
product-security@apple.com

Source: CCN
Type: Apple security document HT211929
About the security content of iOS 14.2 and iPadOS 14.2

Source: product-security@apple.com
Type: Vendor Advisory
product-security@apple.com

Source: CCN
Type: Apple security document HT211930
About the security content of tvOS 14.2

Source: product-security@apple.com
Type: Vendor Advisory
product-security@apple.com

Source: CCN
Type: Apple security document HT211931
About the security content of macOS Big Sur 11.0.1

Source: product-security@apple.com
Type: Vendor Advisory
product-security@apple.com

Source: CCN
Type: Apple security document HT211933
About the security content of iTunes 12.11 for Windows

Source: product-security@apple.com
Type: Vendor Advisory
product-security@apple.com

Source: CCN
Type: Apple security document HT211934
About the security content of Safari 14.0.1

Source: product-security@apple.com
Type: Vendor Advisory
product-security@apple.com

Source: CCN
Type: Apple security document HT211935
About the security content of iCloud for Windows 11.5

Source: product-security@apple.com
Type: Vendor Advisory
product-security@apple.com

Source: product-security@apple.com
Type: Third Party Advisory
product-security@apple.com

Source: CCN
Type: IBM Security Bulletin 6551876 (Cloud Pak for Security)
Cloud Pak for Security uses packages that are vulnerable to multiple CVEs

Vulnerable Configuration: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:14.1:*:*:*:*:*:*:*
  • OR cpe:/o:apple:ipados:14.1:*:*:*:*:*:*:*
  • OR cpe:/o:apple:tvos:14.1:*:*:*:*:*:*:*
  • OR cpe:/a:apple:safari:14.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:apple:icloud:11.4:*:*:*:*:windows:*:*
  • AND
  • 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: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: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:3018
    P
    		augeas-1.10.1-2.6 on GA media (Moderate)
    2022-06-28
    oval:org.opensuse.security:def:3394
    P
    		vorbis-tools-1.4.0-26.1 on GA media (Moderate)
    2022-06-28
    oval:org.opensuse.security:def:94767
    P
    		pam_krb5-2.4.13-1.36 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:95216
    P
    		libvncclient1-0.9.13-150400.1.9 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:94506
    P
    		bind-devel-9.16.6-150300.22.16.1 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:144
    P
    		libjavascriptcoregtk-4_0-18-2.32.0-3.15.1 on GA media (Moderate)
    2022-06-13
    oval:org.opensuse.security:def:1073
    P
    		Security update for tiff (Important)
    2022-05-30
    oval:org.opensuse.security:def:119097
    P
    		Security update for webkit2gtk3 (Important)
    2022-02-17
    oval:org.opensuse.security:def:119402
    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:898
    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:101609
    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:101759
    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:118715
    P
    		Security update for webkit2gtk3 (Important)
    2022-01-25
    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: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: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:1744
    P
    		Security update for the Linux Kernel (Important)
    2021-11-16
    oval:org.opensuse.security:def:101929
    P
    		Security update for the Linux Kernel (Important)
    2021-11-11
    oval:com.redhat.rhsa:def:20214381
    P
    		RHSA-2021:4381: GNOME security, bug fix, and enhancement update (Moderate)
    2021-11-09
    oval:org.opensuse.security:def:106141
    P
    		libjavascriptcoregtk-4_0-18-2.32.4-1.1 on GA media (Moderate)
    2021-10-01
    oval:org.opensuse.security:def:62833
    P
    		typelib-1_0-JavaScriptCore-4_0-2.32.0-3.15.1 on GA media (Moderate)
    2021-08-09
    oval:org.opensuse.security:def:101239
    P
    		typelib-1_0-JavaScriptCore-4_0-2.32.0-3.15.1 on GA media (Moderate)
    2021-08-09
    oval:org.opensuse.security:def:72552
    P
    		typelib-1_0-JavaScriptCore-4_0-2.32.0-3.15.1 on GA media (Moderate)
    2021-08-09
    oval:org.opensuse.security:def:62162
    P
    		libjavascriptcoregtk-4_0-18-2.32.0-3.15.1 on GA media (Moderate)
    2021-08-09
    oval:org.opensuse.security:def:100920
    P
    		libjavascriptcoregtk-4_0-18-2.32.0-3.15.1 on GA media (Moderate)
    2021-08-09
    oval:org.opensuse.security:def:71903
    P
    		libjavascriptcoregtk-4_0-18-2.32.0-3.15.1 on GA media (Moderate)
    2021-08-09
    oval:org.opensuse.security:def:101219
    P
    		libsrt1-1.3.4-1.45 on GA media (Moderate)
    2021-08-09
    oval:org.opensuse.security:def:101480
    P
    		Security update for webkit2gtk3 (Important)
    2021-08-03
    oval:org.opensuse.security:def:99651
    P
    		 (Critical)
    2021-06-21
    oval:org.opensuse.security:def:34468
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:89410
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:30213
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:57465
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:85666
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:126728
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:32949
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:59755
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:88144
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:26076
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:55916
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:83420
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:31202
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:57944
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:86106
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:51589
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:33674
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:60291
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:88457
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:29385
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:56036
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:84164
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:5063
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:125558
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:31642
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:58772
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:86585
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:23601
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:51913
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:82592
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:127125
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:33932
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:89152
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:30093
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:57025
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:84622
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:32121
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:59497
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:87413
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:23925
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:55208
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:83300
    P
    		Security update for webkit2gtk3 (Important)
    2021-06-17
    oval:org.opensuse.security:def:99959
    P
    		 (Important)
    2021-06-11
    oval:org.opensuse.security:def:9702
    P
    		Security update for webkit2gtk3 (Important)
    2021-05-04
    oval:org.opensuse.security:def:92303
    P
    		Security update for webkit2gtk3 (Important)
    2021-05-04
    oval:org.opensuse.security:def:69459
    P
    		Security update for webkit2gtk3 (Important)
    2021-05-04
    oval:org.opensuse.security:def:99452
    P
    		Security update for webkit2gtk3 (Important)
    2021-05-04
    oval:org.opensuse.security:def:93053
    P
    		Security update for webkit2gtk3 (Important)
    2021-05-04
    oval:org.opensuse.security:def:8947
    P
    		Security update for webkit2gtk3 (Important)
    2021-05-04
    oval:org.opensuse.security:def:70393
    P
    		Security update for webkit2gtk3 (Important)
    2021-05-04
    oval:org.opensuse.security:def:98863
    P
    		Security update for webkit2gtk3 (Important)
    2021-05-04
    oval:org.opensuse.security:def:96928
    P
    		Security update for webkit2gtk3 (Important)
    2021-05-04
    oval:org.opensuse.security:def:10073
    P
    		Security update for webkit2gtk3 (Important)
    2021-05-04
    oval:org.opensuse.security:def:92502
    P
    		Security update for webkit2gtk3 (Important)
    2021-05-04
    oval:org.opensuse.security:def:69643
    P
    		Security update for webkit2gtk3 (Important)
    2021-05-04
    oval:org.opensuse.security:def:93206
    P
    		Security update for webkit2gtk3 (Important)
    2021-05-04
    oval:org.opensuse.security:def:9319
    P
    		Security update for webkit2gtk3 (Important)
    2021-05-04
    oval:org.opensuse.security:def:91913
    P
    		Security update for webkit2gtk3 (Important)
    2021-05-04
    oval:org.opensuse.security:def:99058
    P
    		Security update for webkit2gtk3 (Important)
    2021-05-04
    oval:org.opensuse.security:def:10253
    P
    		Security update for webkit2gtk3 (Important)
    2021-05-04
    oval:org.opensuse.security:def:92701
    P
    		Security update for webkit2gtk3 (Important)
    2021-05-04
    oval:org.opensuse.security:def:8574
    P
    		Security update for webkit2gtk3 (Important)
    2021-05-04
    oval:org.opensuse.security:def:69842
    P
    		Security update for webkit2gtk3 (Important)
    2021-05-04
    oval:org.opensuse.security:def:9503
    P
    		Security update for webkit2gtk3 (Important)
    2021-05-04
    oval:org.opensuse.security:def:92108
    P
    		Security update for webkit2gtk3 (Important)
    2021-05-04
    oval:org.opensuse.security:def:99253
    P
    		Security update for webkit2gtk3 (Important)
    2021-05-04
    oval:org.opensuse.security:def:92900
    P
    		Security update for webkit2gtk3 (Important)
    2021-05-04
    oval:org.opensuse.security:def:8752
    P
    		Security update for webkit2gtk3 (Important)
    2021-05-04
    oval:org.opensuse.security:def:70213
    P
    		Security update for webkit2gtk3 (Important)
    2021-05-04
    oval:org.opensuse.security:def:111354
    P
    		Security update for webkit2gtk3 (Important)
    2021-04-30
    oval:org.opensuse.security:def:108146
    P
    		Security update for webkit2gtk3 (Important)
    2021-04-29
    oval:org.opensuse.security:def:75825
    P
    		Security update for webkit2gtk3 (Important)
    2021-04-29
    oval:org.opensuse.security:def:96910
    P
    		Security update for webkit2gtk3 (Important)
    2021-04-29
    oval:org.opensuse.security:def:4122
    P
    		Security update for webkit2gtk3 (Important)
    2021-04-29
    oval:org.opensuse.security:def:64483
    P
    		Security update for webkit2gtk3 (Important)
    2021-04-29
    oval:org.opensuse.security:def:117400
    P
    		Security update for webkit2gtk3 (Important)
    2021-04-29
    oval:org.opensuse.security:def:108595
    P
    		Security update for webkit2gtk3 (Important)
    2021-04-29
    oval:org.opensuse.security:def:5668
    P
    		Security update for webkit2gtk3 (Important)
    2021-04-29
    oval:org.opensuse.security:def:73605
    P
    		Security update for webkit2gtk3 (Important)
    2021-04-29
    oval:org.opensuse.security:def:65211
    P
    		Security update for webkit2gtk3 (Important)
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    apple ios 14.1
    apple ipados 14.1
    apple tvos 14.1
    apple safari 14.0.0
    apple icloud 11.4
    ibm cloud pak for security 1.7.2.0