CVE-2020-9952: Input Validation

Published Sep 16, 2020
·
Updated

A flaw was found in WebKitGTK. An input validation issue was addressed with improved input validation. Processing maliciously crafted web content may lead to a cross site scripting attack.

Reference: https://webkitgtk.org/security/WSA-2020-0008.html

Other sources

An input validation issue was addressed with improved input validation. This issue is fixed in iOS 14.0 and iPadOS 14.0, tvOS 14.0, watchOS 7.0, Safari 14.0, iCloud for Windows 11.4, iCloud for Windows 7.21. Processing maliciously crafted web content may lead to a cross site scripting attack.

— Launchpad

WebKit. An input validation issue was addressed with improved input validation.

Credit

Ryan Pickren (ryanpickren.com)

Affected Software

26 affected componentsFixes available
debian/webkit2gtk
2.44.2-1~deb11u12.44.3-1~deb11u12.44.2-1~deb12u12.44.3-1~deb12u12.44.4-1
debian/wpewebkit
2.38.6-1~deb11u12.38.6-12.44.4-1
Apple tvOS<14.0
14.0
Apple WatchOS<7.0
7.0
Apple iCloud for Windows<7.21
7.21
Apple iCloud for Windows<11.4
11.4
Apple Safari<14.0
14.0
Apple iOS<14.0
14.0
Apple iPadOS<14.0
14.0
Apple Icloud Windows<7.21
Apple Icloud Windows>=11.0<11.4
Apple Safari<14.0
Apple iPadOS<14.0
Apple iPhone OS<14.0
Apple tvOS<14.0
Apple WatchOS<7.0
WebKit Webkitgtk\+<=2.30.3
redhat/webkitgtk<2.28.3
2.28.3
alpine/webkit2gtk<2.28.3-r0
2.28.3-r0
alpine/webkit2gtk<2.28.3-r0
2.28.3-r0
alpine/webkit2gtk<2.28.3-r0
2.28.3-r0
alpine/webkit2gtk<2.28.3-r0
2.28.3-r0
alpine/webkit2gtk<2.28.3-r0
2.28.3-r0
alpine/webkit2gtk<2.28.3-r0
2.28.3-r0
alpine/webkit2gtk<2.28.3-r0
2.28.3-r0
alpine/webkit2gtk<2.28.3-r0
2.28.3-r0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade debian/webkit2gtk to a version that resolves this vulnerability.

    Fixed in 2.44.2-1~deb11u1Fixed in 2.44.3-1~deb11u1Fixed in 2.44.2-1~deb12u1Fixed in 2.44.3-1~deb12u1Fixed in 2.44.4-1
  2. Upgrade

    Upgrade debian/wpewebkit to a version that resolves this vulnerability.

    Fixed in 2.38.6-1~deb11u1Fixed in 2.38.6-1Fixed in 2.44.4-1
  3. Upgrade

    Upgrade tvOS to a version that resolves this vulnerability.

    Fixed in 14.0
  4. Upgrade

    Upgrade Apple iOS, iPadOS, and watchOS to a version that resolves this vulnerability.

    Fixed in 7.0
  5. Upgrade

    Upgrade Apple iCloud to a version that resolves this vulnerability.

    Fixed in 7.21
  6. Upgrade

    Upgrade Apple iCloud to a version that resolves this vulnerability.

    Fixed in 11.4
  7. Upgrade

    Upgrade Safari to a version that resolves this vulnerability.

    Fixed in 14.0
  8. Upgrade

    Upgrade Apple iOS and iPadOS to a version that resolves this vulnerability.

    Fixed in 14.0
  9. Upgrade

    Upgrade Apple iOS, iPadOS, and macOS to a version that resolves this vulnerability.

    Fixed in 14.0
  10. Upgrade

    Upgrade redhat/webkitgtk to a version that resolves this vulnerability.

    Fixed in 2.28.3
  11. Upgrade

    Upgrade alpine/webkit2gtk to a version that resolves this vulnerability.

    Fixed in 2.28.3-r0
  12. Upgrade

    Upgrade iOS to a version that resolves this vulnerability.

    Fixed in 14.0
  13. Upgrade

    Upgrade iPadOS to a version that resolves this vulnerability.

    Fixed in 14.0
  14. Upgrade

    Upgrade watchOS to a version that resolves this vulnerability.

    Fixed in 7.0
  15. Upgrade

    Upgrade iCloud for Windows to a version that resolves this vulnerability.

    Fixed in 11.4
  16. Upgrade

    Upgrade iCloud for Windows to a version that resolves this vulnerability.

    Fixed in 7.21

Event History

Oct 16, 2020
CVE Published
via MITRE·04:53 PM
Data Sourced
via MITRE·04:53 PM
DescriptionWeakness
Data Sourced
via NVD·05:15 PM
DescriptionSeverityWeaknessAffected Software
Data Sourced
via OSV·05:15 PM
DescriptionSeverityAffected Software
Nov 24, 2020
Data Sourced
via Red Hat·06:34 PM
DescriptionSeverityAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is CVE-2020-9952?

CVE-2020-9952 is an input validation issue in WebKit that has been addressed with improved input validation.

2

Which software products are affected by CVE-2020-9952?

CVE-2020-9952 affects Apple tvOS, Apple Safari, Apple iOS, Apple iPadOS, Apple watchOS, and Apple iCloud for Windows.

3

What is the severity of CVE-2020-9952?

The severity of CVE-2020-9952 has not been specified.

4

How can I fix CVE-2020-9952?

To fix CVE-2020-9952, update your software to the latest version provided by Apple.

5

Where can I find more information about CVE-2020-9952?

You can find more information about CVE-2020-9952 on the Apple support website.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203