CVE-2021-1788: Use After Free

Published Jan 26, 2021
·
Updated

A flaw was found in WebKitGTK.

Impact: Processing maliciously crafted web content may lead to arbitrary code execution. Description: A use after free issue was addressed with improved memory management.

Reference: https://webkitgtk.org/security/WSA-2021-0003.html

Other sources

A use after free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, tvOS 14.4, watchOS 7.3, iOS 14.4 and iPadOS 14.4, Safari 14.0.3. Processing maliciously crafted web content may lead to arbitrary code execution.

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

Credit

Francisco Alonso@@revskills, Francisco Alonso@@revskills, Francisco Alonso@@revskills, Francisco Alonso@@revskills, Francisco Alonso@@revskills

Affected Software

37 affected componentsFixes available
debian/webkit2gtk
2.36.4-1~deb10u12.38.6-0+deb10u12.40.5-1~deb11u12.42.1-1~deb11u22.40.5-1~deb12u12.42.1-1~deb12u12.42.1-2
debian/wpewebkit
2.38.6-1~deb11u12.38.6-12.42.1-1
Apple tvOS<14.4
14.4
Apple macOS Big Sur<11.2
11.2
Apple Catalina
Apple Mojave
Apple WatchOS<7.3
7.3
Apple Safari<14.0.3
14.0.3
Apple iOS<14.4
14.4
Apple iPadOS<14.4
14.4
Apple iPadOS<14.4
Apple iPhone OS<14.4
Apple iOS and macOS>=10.14<10.14.6
Apple iOS and macOS>=10.15<10.15.7
Apple iOS and macOS=10.14.6
Apple iOS and macOS=10.14.6-security_update_2019-004
Apple iOS and macOS=10.14.6-security_update_2019-005
Apple iOS and macOS=10.14.6-security_update_2019-006
Apple iOS and macOS=10.14.6-security_update_2019-007
Apple iOS and macOS=10.14.6-security_update_2020-001
Apple iOS and macOS=10.14.6-security_update_2020-002
Apple iOS and macOS=10.14.6-security_update_2020-003
Apple iOS and macOS=10.14.6-security_update_2020-004
Apple iOS and macOS=10.14.6-security_update_2020-005
Apple iOS and macOS=10.14.6-security_update_2020-006
Apple iOS and macOS=10.14.6-security_update_2020-007
Apple iOS and macOS=10.14.6-supplemental_update
Apple iOS and macOS=10.14.6-supplemental_update_2
Apple iOS and macOS=10.15.7
Apple iOS and macOS=10.15.7-supplemental_update
Apple macOS>=11.0<11.2
Apple Safari<14.0.3
Apple tvOS<14.4
Apple WatchOS<7.3
Debian Debian Linux=10.0
Fedoraproject Fedora=33
redhat/webkitgtk<2.32.0
2.32.0

Event History

Mar 30, 2021
Data Sourced
via Red Hat·08:02 PM
DescriptionSeverityAffected Software
Apr 2, 2021
CVE Published
via MITRE·06:00 PM
Data Sourced
via MITRE·06:00 PM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the vulnerability ID?

The vulnerability ID is CVE-2021-1788.

2

What is the affected software?

The affected software includes Apple Safari, macOS Big Sur, Catalina, Mojave, watchOS, iOS, iPadOS, and tvOS.

3

What is the severity of CVE-2021-1788?

The severity of CVE-2021-1788 is not specified.

4

How can I fix CVE-2021-1788?

To fix CVE-2021-1788, update to the latest versions of the affected software as recommended by Apple.

5

Where can I find more information about CVE-2021-1788?

You can find more information about CVE-2021-1788 on Apple's official support website.

Contact

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