CVE-2021-30836: Input Validation

Reference Links

• https://support.apple.com/en-us/HT212807 (Advisory)
• 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/HT212816
• https://support.apple.com/kb/HT212869

Parent vulnerabilities

(Appears in the following advisories)

• HT212807
• HT212814
• HT212815
• HT212816
• HT212819
• HT212869

Peer vulnerabilities

(Found alongside the following vulnerabilities)

• CVE-2021-30838
• CVE-2021-30820
• CVE-2021-30905
• CVE-2021-30834
• CVE-2021-30928
• CVE-2021-30860
• CVE-2021-30864
• CVE-2021-31010
• CVE-2021-30841
• CVE-2021-30843
• CVE-2021-30842
• CVE-2021-30852
• CVE-2021-30847
• CVE-2021-30857
• CVE-2021-30859
• CVE-2013-0340
• CVE-2021-30855
• CVE-2021-30826
• CVE-2021-30818
• CVE-2021-30823
• CVE-2021-30836
• CVE-2021-30858
• CVE-2021-30848
• CVE-2021-30849
• CVE-2021-30846
• CVE-2021-30837
• CVE-2021-30811
• CVE-2021-30866
• CVE-2021-30825
• CVE-2021-30863
• CVE-2021-30816
• CVE-2021-30882
• CVE-2021-30831
• CVE-2021-30840
• CVE-2021-30867
• CVE-2021-30814
• CVE-2021-30835
• CVE-2021-30819
• CVE-2021-30874
• CVE-2021-30854
• CVE-2021-30898
• CVE-2021-30870
• CVE-2021-30925
• CVE-2021-30808
• CVE-2021-30815
• CVE-2021-31001
• CVE-2021-31005
• CVE-2021-31008
• CVE-2021-30897
• CVE-2021-30884
• CVE-2021-30809
• CVE-2021-30851
• CVE-2021-30930
• CVE-2021-30810
• CVE-2021-30850
• CVE-2021-30861
• 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-2021-30917
• CVE-2021-30903
• CVE-2021-30919
• CVE-2020-9846
• CVE-2021-30881
• CVE-2021-30923
• CVE-2021-30895
• CVE-2021-30896
• CVE-2021-30933
• CVE-2021-30906
• 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-2021-30813
• CVE-2021-31011
• CVE-2021-30904
• CVE-2021-30910
• CVE-2021-30911
• CVE-2021-30920
• CVE-2021-31004
• CVE-2021-31002
• CVE-2021-30868
• CVE-2021-30912
• CVE-2021-30913
• CVE-2021-30915
• CVE-2021-30887
• CVE-2021-30888
• CVE-2021-30889
• CVE-2021-30890
• CVE-2021-30908
• CVE-2021-30833
• CVE-2021-30892

Frequently Asked Questions

• What is CVE-2021-30836?

  CVE-2021-30836 is a vulnerability in WebKit where an out-of-bounds read was addressed with improved input validation.

• Which software is affected by CVE-2021-30836?

  CVE-2021-30836 affects the following software versions: Apple watchOS 8, Apple iOS up to version 15, Apple iPadOS up to version 15, Apple iOS up to version 14.8, Apple iPadOS up to version 14.8, 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-2021-30836?

  The severity of CVE-2021-30836 is not provided in the information available.

• How can I fix CVE-2021-30836?

  To fix CVE-2021-30836, it is recommended to update the affected software to the versions mentioned in the affected software list.

• Where can I find more information about CVE-2021-30836?

  You can find more information about CVE-2021-30836 on the following references: [link1], [link2], [link3]. [link1] [link2] [link3] These links provide detailed information and guidance on the vulnerability and its remediation.