7.8
HIGH
CVE-2020-27918
"Apple Safari Use After Free Vulnerability"
Description

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.

INFO

Published Date :

Dec. 8, 2020, 10:15 p.m.

Last Modified :

Nov. 7, 2023, 3:21 a.m.

Source :

[email protected]

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2020-27918 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Apple macos
2 Apple itunes
3 Apple iphone_os
4 Apple tvos
5 Apple watchos
6 Apple safari
7 Apple icloud
8 Apple ipados
1 Fedoraproject fedora
1 Debian debian_linux
1 Webkitgtk webkitgtk\+
: Total Affected Vendor : 4 | Products : 11
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2020-27918.

URL Resource
http://seclists.org/fulldisclosure/2020/Dec/32 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/03/22/1 Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EQ3U3VBSOJB46WCO66TEWE5OAXLTU3YW/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN6ZOD62CTO54CHTMJTHVEF6R2Y532TJ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/
https://security.gentoo.org/glsa/202104-03 Third Party Advisory
https://support.apple.com/en-us/HT211928 Vendor Advisory
https://support.apple.com/en-us/HT211929 Vendor Advisory
https://support.apple.com/en-us/HT211930 Vendor Advisory
https://support.apple.com/en-us/HT211931 Vendor Advisory
https://support.apple.com/en-us/HT211933 Vendor Advisory
https://support.apple.com/en-us/HT211934 Vendor Advisory
https://support.apple.com/en-us/HT211935 Vendor Advisory
https://www.debian.org/security/2021/dsa-4877 Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-27918 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-27918 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference Apple Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EQ3U3VBSOJB46WCO66TEWE5OAXLTU3YW/ [No types assigned]
    Added Reference Apple Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/ [No types assigned]
    Added Reference Apple Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN6ZOD62CTO54CHTMJTHVEF6R2Y532TJ/ [No types assigned]
    Removed Reference Apple Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/EQ3U3VBSOJB46WCO66TEWE5OAXLTU3YW/
    Removed Reference Apple Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/
    Removed Reference Apple Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/JN6ZOD62CTO54CHTMJTHVEF6R2Y532TJ/
  • CPE Deprecation Remap by [email protected]

    Jan. 09, 2023

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:o:apple:ipad_os:*:*:*:*:*:*:*:* versions from (excluding) 14.2 OR *cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* versions from (excluding) 14.2
  • Modified Analysis by [email protected]

    Oct. 12, 2022

    Action Type Old Value New Value
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/EQ3U3VBSOJB46WCO66TEWE5OAXLTU3YW/ Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/EQ3U3VBSOJB46WCO66TEWE5OAXLTU3YW/ Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/JN6ZOD62CTO54CHTMJTHVEF6R2Y532TJ/ Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/JN6ZOD62CTO54CHTMJTHVEF6R2Y532TJ/ Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/ Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/ Mailing List, Third Party Advisory
    Changed Reference Type https://security.gentoo.org/glsa/202104-03 No Types Assigned https://security.gentoo.org/glsa/202104-03 Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:webkitgtk:webkitgtk\+:*:*:*:*:*:*:*:* versions up to (excluding) 2.30.6
  • CVE Modified by [email protected]

    May. 01, 2021

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/202104-03 [No Types Assigned]
  • Modified Analysis by [email protected]

    Apr. 15, 2021

    Action Type Old Value New Value
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/EQ3U3VBSOJB46WCO66TEWE5OAXLTU3YW/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/EQ3U3VBSOJB46WCO66TEWE5OAXLTU3YW/ Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/JN6ZOD62CTO54CHTMJTHVEF6R2Y532TJ/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/JN6ZOD62CTO54CHTMJTHVEF6R2Y532TJ/ Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/ Third Party Advisory
    Changed Reference Type https://www.debian.org/security/2021/dsa-4877 No Types Assigned https://www.debian.org/security/2021/dsa-4877 Third Party Advisory
    Changed CPE Configuration OR *cpe:2.3:a:apple:icloud:*:*:*:*:*:windows:*:* versions up to (excluding) 11.5 *cpe:2.3:a:apple:itunes:*:*:*:*:*:windows:*:* versions up to (excluding) 12.11 *cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:* versions up to (excluding) 14.0.1 *cpe:2.3:o:apple:ipad_os:*:*:*:*:*:*:*:* versions up to (excluding) 14.2 *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions up to (excluding) 14.2 *cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* versions up to (excluding) 11.0.1 *cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* versions up to (excluding) 14.2 *cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* versions up to (excluding) 7.1 OR *cpe:2.3:a:apple:icloud:*:*:*:*:*:windows:*:* versions up to (excluding) 11.5 *cpe:2.3:a:apple:itunes:*:*:*:*:*:windows:*:* versions up to (excluding) 12.11 *cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:* versions up to (excluding) 14.0.1 *cpe:2.3:o:apple:ipad_os:*:*:*:*:*:*:*:* versions up to (excluding) 14.2 *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions up to (excluding) 14.2 *cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* versions up to (excluding) 11.0.1 *cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* versions up to (excluding) 14.2 *cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* versions up to (excluding) 7.1
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Apr. 11, 2021

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/JN6ZOD62CTO54CHTMJTHVEF6R2Y532TJ/ [No Types Assigned]
  • CVE Modified by [email protected]

    Apr. 04, 2021

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/ [No Types Assigned]
  • CVE Modified by [email protected]

    Mar. 30, 2021

    Action Type Old Value New Value
    Added Reference https://www.debian.org/security/2021/dsa-4877 [No Types Assigned]
  • CVE Modified by [email protected]

    Mar. 29, 2021

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/EQ3U3VBSOJB46WCO66TEWE5OAXLTU3YW/ [No Types Assigned]
  • Modified Analysis by [email protected]

    Mar. 23, 2021

    Action Type Old Value New Value
    Changed Reference Type http://seclists.org/fulldisclosure/2020/Dec/32 No Types Assigned http://seclists.org/fulldisclosure/2020/Dec/32 Mailing List, Third Party Advisory
    Changed Reference Type http://www.openwall.com/lists/oss-security/2021/03/22/1 No Types Assigned http://www.openwall.com/lists/oss-security/2021/03/22/1 Mailing List, Third Party Advisory
  • CVE Modified by [email protected]

    Mar. 23, 2021

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2021/03/22/1 [No Types Assigned]
  • CVE Modified by [email protected]

    Dec. 15, 2020

    Action Type Old Value New Value
    Added Reference http://seclists.org/fulldisclosure/2020/Dec/32 [No Types Assigned]
  • Initial Analysis by [email protected]

    Dec. 09, 2020

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    Changed Reference Type https://support.apple.com/en-us/HT211928 No Types Assigned https://support.apple.com/en-us/HT211928 Vendor Advisory
    Changed Reference Type https://support.apple.com/en-us/HT211929 No Types Assigned https://support.apple.com/en-us/HT211929 Vendor Advisory
    Changed Reference Type https://support.apple.com/en-us/HT211930 No Types Assigned https://support.apple.com/en-us/HT211930 Vendor Advisory
    Changed Reference Type https://support.apple.com/en-us/HT211931 No Types Assigned https://support.apple.com/en-us/HT211931 Vendor Advisory
    Changed Reference Type https://support.apple.com/en-us/HT211933 No Types Assigned https://support.apple.com/en-us/HT211933 Vendor Advisory
    Changed Reference Type https://support.apple.com/en-us/HT211934 No Types Assigned https://support.apple.com/en-us/HT211934 Vendor Advisory
    Changed Reference Type https://support.apple.com/en-us/HT211935 No Types Assigned https://support.apple.com/en-us/HT211935 Vendor Advisory
    Added CWE NIST CWE-416
    Added CPE Configuration OR *cpe:2.3:a:apple:icloud:*:*:*:*:*:windows:*:* versions up to (excluding) 11.5 *cpe:2.3:a:apple:itunes:*:*:*:*:*:windows:*:* versions up to (excluding) 12.11 *cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:* versions up to (excluding) 14.0.1 *cpe:2.3:o:apple:ipad_os:*:*:*:*:*:*:*:* versions up to (excluding) 14.2 *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions up to (excluding) 14.2 *cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* versions up to (excluding) 11.0.1 *cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* versions up to (excluding) 14.2 *cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* versions up to (excluding) 7.1
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-27918 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2020-27918 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.16 }} 0.02%

score

0.53605

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: