CVE-2020-9895: Use After Free

Published Jul 15, 2020
·
Updated

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 13.6 and iPadOS 13.6, tvOS 13.4.8, watchOS 6.2.8, Safari 13.1.2, iTunes 12.10.8 for Windows, iCloud for Windows 11.3, iCloud for Windows 7.20. A remote attacker may be able to cause unexpected application termination or arbitrary code execution.

Other sources

An use-after-free issue was found in webkitgtk. A remote attacker may be able to cause unexpected application termination or arbitrary code execution. Versions affected: WebKitGTK before 2.28.4 and WPE WebKit before 2.28.4.

— Red Hat

WebKit. A use after free issue was addressed with improved memory management.

Credit

0011(Trend Micro Zero Day Initiative), Wen Xu(SSLab), Georgia Tech, 0011(Trend Micro Zero Day Initiative), Wen Xu(SSLab), Georgia Tech, 0011(Trend Micro Zero Day Initiative), Wen Xu(SSLab), Georgia Tech, 0011(Trend Micro Zero Day Initiative), Wen Xu(SSLab), Georgia Tech, 0011(Trend Micro Zero Day Initiative), Wen Xu(SSLab), Georgia Tech, 0011(Trend Micro Zero Day Initiative), Wen Xu(SSLab), Georgia Tech, 0011(Trend Micro Zero Day Initiative), Wen Xu(SSLab), Georgia Tech, 0011(Trend Micro Zero Day Initiative), Wen Xu(SSLab), Georgia Tech, 0011(Trend Micro Zero Day Initiative), Wen Xu(SSLab), Georgia Tech

Affected Software

26 affected componentsFixes available
Apple tvOS<13.4.8
13.4.8
Apple WatchOS<6.2.8
6.2.8
Apple iCloud for Windows<11.3
11.3
Apple iCloud for Windows<7.20
7.20
Apple iTunes for Windows<12.10.8
12.10.8
Apple Safari<13.1.2
13.1.2
Apple iOS<13.6
13.6
Apple iPadOS<13.6
13.6
Apple Icloud Windows<7.20
Apple Icloud Windows>=11.0<11.3
Apple Itunes Windows<12.10.8
Apple Safari<13.1.2
Apple iPadOS<13.6
Apple iPhone OS<13.6
Apple tvOS<13.4.8
Apple WatchOS<6.2.8
redhat/webkitgtk<2.28.4
2.28.4
alpine/webkit2gtk<2.28.4-r0
2.28.4-r0
alpine/webkit2gtk<2.28.4-r0
2.28.4-r0
alpine/webkit2gtk<2.28.4-r0
2.28.4-r0
alpine/webkit2gtk<2.28.4-r0
2.28.4-r0
alpine/webkit2gtk<2.28.4-r0
2.28.4-r0
alpine/webkit2gtk<2.28.4-r0
2.28.4-r0
alpine/webkit2gtk<2.28.4-r0
2.28.4-r0
alpine/webkit2gtk<2.28.4-r0
2.28.4-r0
alpine/webkit2gtk<2.28.4-r0
2.28.4-r0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade tvOS to a version that resolves this vulnerability.

    Fixed in 13.4.8
  2. Upgrade

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

    Fixed in 6.2.8
  3. Upgrade

    Upgrade Apple iCloud to a version that resolves this vulnerability.

    Fixed in 11.3
  4. Upgrade

    Upgrade Apple iCloud to a version that resolves this vulnerability.

    Fixed in 7.20
  5. Upgrade

    Upgrade iTunes to a version that resolves this vulnerability.

    Fixed in 12.10.8
  6. Upgrade

    Upgrade Safari to a version that resolves this vulnerability.

    Fixed in 13.1.2
  7. Upgrade

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

    Fixed in 13.6
  8. Upgrade

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

    Fixed in 13.6
  9. Upgrade

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

    Fixed in 2.28.4
  10. Upgrade

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

    Fixed in 2.28.4-r0
  11. Upgrade

    Upgrade iOS to a version that resolves this vulnerability.

    Fixed in 13.6
  12. Upgrade

    Upgrade iPadOS to a version that resolves this vulnerability.

    Fixed in 13.6
  13. Upgrade

    Upgrade watchOS to a version that resolves this vulnerability.

    Fixed in 6.2.8
  14. Upgrade

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

    Fixed in 12.10.8
  15. Upgrade

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

    Fixed in 11.3
  16. Upgrade

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

    Fixed in 7.20
  17. Upgrade

    Upgrade WebKitGTK to a version that resolves this vulnerability.

    Fixed in 2.28.4
  18. Upgrade

    Upgrade WPE WebKit to a version that resolves this vulnerability.

    Fixed in 2.28.4

Event History

Sep 16, 2020
Data Sourced
via Red Hat·01:45 PM
DescriptionSeverityAffected Software
Oct 16, 2020
CVE Published
via MITRE·04:40 PM
Data Sourced
via MITRE·04:40 PM
DescriptionWeakness
Data Sourced
via NVD·05:15 PM
DescriptionSeverityWeaknessAffected Software
Data Sourced
via OSV·05:15 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-2020-9895?

CVE-2020-9895 is a use after free vulnerability in Apple Safari, iOS, iPadOS, watchOS, iCloud for Windows, tvOS, and iTunes for Windows.

2

How does CVE-2020-9895 impact the affected software?

CVE-2020-9895 allows an attacker to execute arbitrary code or cause a denial of service by exploiting the use after free vulnerability.

3

What is the severity of CVE-2020-9895?

The severity of CVE-2020-9895 is high.

4

How can I fix CVE-2020-9895?

To fix CVE-2020-9895, update to the latest version of the affected software as recommended by Apple.

5

Where can I find more information about CVE-2020-9895?

You can find more information about CVE-2020-9895 on the Apple support website.

Company

Resources

Contact

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