CVE-2021-30809: Use After Free
First published: Mon Sep 20 2021(Updated: )
WebKit. A use after free issue was addressed with improved memory management.
Credit: an anonymous researcher an anonymous researcher an anonymous researcher an anonymous researcher an anonymous researcher product-security@apple.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Apple macOS Monterey | <12.0.1 | 12.0.1 |
| tvOS | <15 | 15 |
| Apple Mobile Safari | <15 | 15 |
| Apple iOS, iPadOS, and watchOS | <15 | 15 |
| Apple iOS, iPadOS, and watchOS | <15 | 15 |
| Apple iOS, iPadOS, and watchOS | <8 | 8 |
| Apple Mobile Safari | <15.0 | |
| Apple iOS, iPadOS, and watchOS | <15.0 | |
| iStyle @cosme iPhone OS | <15.0 | |
| Apple iOS and macOS | <12.0.1 | |
| tvOS | <15.0 | |
| Apple iOS, iPadOS, and watchOS | <8.0 |
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Reference Links
- https://support.apple.com/en-us/HT212814 (Advisory)
- https://support.apple.com/en-us/HT212815 (Advisory)
- https://support.apple.com/en-us/HT212816 (Advisory)
- https://support.apple.com/en-us/HT212819 (Advisory)
- https://support.apple.com/en-us/HT212869 (Advisory)
- http://www.openwall.com/lists/oss-security/2021/12/20/6
- https://support.apple.com/kb/HT212869
Peer vulnerabilities
(Found alongside the following vulnerabilities)
- CVE-2021-30873
- CVE-2021-30876
- CVE-2021-30879
- CVE-2021-30877
- CVE-2021-30880
- CVE-2021-30994
- CVE-2021-30907
- CVE-2021-30899
- CVE-2021-30931
- CVE-2021-30866
- CVE-2021-30917
- CVE-2021-30903
- CVE-2021-30905
- CVE-2021-30919
- CVE-2020-9846
- CVE-2021-30881
- CVE-2021-30923
- CVE-2021-30831
- CVE-2021-30840
- CVE-2021-30852
- CVE-2021-30895
- CVE-2021-30896
- CVE-2021-30933
- CVE-2021-30906
- CVE-2021-30867
- CVE-2021-30814
- CVE-2021-30922
- CVE-2021-30824
- CVE-2021-30901
- CVE-2021-30821
- CVE-2021-30883
- CVE-2021-30924
- CVE-2021-30886
- CVE-2021-30909
- CVE-2021-30916
- CVE-2021-30864
- CVE-2021-30813
- CVE-2021-31011
- CVE-2021-30904
- CVE-2021-30910
- CVE-2021-30911
- CVE-2021-30874
- CVE-2021-30808
- CVE-2021-30920
- CVE-2021-31004
- CVE-2021-31002
- CVE-2021-30868
- CVE-2021-30912
- CVE-2021-30913
- CVE-2021-30915
- CVE-2021-31005
- CVE-2021-31008
- CVE-2021-30897
- CVE-2021-30884
- CVE-2021-30818
- CVE-2021-30836
- CVE-2021-30846
- CVE-2021-30849
- CVE-2021-30848
- CVE-2021-30851
- CVE-2021-30809
- CVE-2021-30823
- CVE-2021-30887
- CVE-2021-30888
- CVE-2021-30889
- CVE-2021-30861
- CVE-2021-30890
- CVE-2021-30930
- CVE-2021-30908
- CVE-2021-30833
- CVE-2021-30892
- CVE-2021-30837
- CVE-2021-30838
- CVE-2021-30834
- CVE-2021-30928
- CVE-2021-30841
- CVE-2021-30842
- CVE-2021-30843
- CVE-2021-30835
- CVE-2021-30847
- CVE-2021-30857
- CVE-2013-0340
- CVE-2021-30855
- CVE-2021-30854
- CVE-2021-30850
- CVE-2021-30810
- CVE-2021-30811
- CVE-2021-30825
- CVE-2021-30863
- CVE-2021-30816
- CVE-2021-30882
- CVE-2021-30819
- CVE-2021-30898
- CVE-2021-30870
- CVE-2021-30925
- CVE-2021-30815
- CVE-2021-31001
- CVE-2021-30826
Frequently Asked Questions
What is CVE-2021-30809?
CVE-2021-30809 is a vulnerability in WebKit that allows for a use-after-free attack due to a memory management issue.
Which software is affected by CVE-2021-30809?
CVE-2021-30809 affects Apple watchOS (up to version 8), Apple iOS (up to version 15), Apple iPadOS (up to version 15), Apple tvOS (up to version 15), Apple Safari (up to version 15), and Apple macOS Monterey (up to version 12.0.1).
How severe is CVE-2021-30809?
The severity of CVE-2021-30809 is not specified in the information provided.
How can I fix CVE-2021-30809?
To fix CVE-2021-30809, it is recommended to update the affected software to the latest versions provided by Apple.
Where can I find more information about CVE-2021-30809?
You can find more information about CVE-2021-30809 on the official Apple support page: [link](https://support.apple.com/en-us/HT212814).
- collector/apple-support
- agent/first-publish-date
- agent/type
- agent/references
- agent/weakness
- agent/severity
- agent/author
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/event
- agent/trending
- agent/source
- agent/software-canonical-lookup-request
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup
- agent/softwarecombine
- vendor/apple
- canonical/apple macos monterey
- canonical/tvos
- canonical/apple mobile safari
- canonical/apple ios, ipados, and watchos
- canonical/istyle @cosme iphone os
- canonical/apple ios and macos