CVE-2021-30753: Input Validation

Reference Links

• https://support.apple.com/en-us/HT212528 (Advisory)
• https://support.apple.com/en-us/HT212529 (Advisory)
• https://support.apple.com/en-us/HT212532 (Advisory)
• https://support.apple.com/en-us/HT212533 (Advisory)

Parent vulnerabilities

(Appears in the following advisories)

• HT212528
• HT212529
• HT212532
• HT212533

Peer vulnerabilities

(Found alongside the following vulnerabilities)

• CVE-2021-30707
• CVE-2021-30685
• CVE-2021-30714
• CVE-2021-30729
• CVE-2021-30681
• CVE-2021-30686
• CVE-2021-30733
• CVE-2021-30753
• CVE-2021-30727
• CVE-2021-30724
• CVE-2021-30771
• CVE-2021-30697
• CVE-2021-30710
• CVE-2021-30687
• CVE-2021-30700
• CVE-2021-30701
• CVE-2021-30705
• CVE-2021-30706
• CVE-2021-30740
• CVE-2021-30674
• CVE-2021-30704
• CVE-2021-30715
• CVE-2021-30736
• CVE-2021-30703
• CVE-2021-30677
• CVE-2021-30741
• CVE-2021-30756
• CVE-2021-30723
• CVE-2021-30691
• CVE-2021-30692
• CVE-2021-30694
• CVE-2021-30725
• CVE-2021-30746
• CVE-2021-30693
• CVE-2021-30695
• CVE-2021-30708
• CVE-2021-30709
• CVE-2021-1821
• CVE-2021-30699
• CVE-2021-30999
• CVE-2021-30737
• CVE-2021-30744
• CVE-2021-21779
• CVE-2021-30682
• CVE-2021-30689
• CVE-2021-30749
• CVE-2021-30734
• CVE-2021-30720
• CVE-2021-23841
• CVE-2021-30698
• CVE-2021-30667
• CVE-2021-30678
• CVE-2021-30676
• CVE-2021-30688
• CVE-2021-30669
• CVE-2021-30672
• CVE-2021-30673
• CVE-2021-30755
• CVE-2021-30684
• CVE-2021-30735
• CVE-2021-30683
• CVE-2021-30719
• CVE-2021-30728
• CVE-2021-30726
• CVE-2021-30731
• CVE-2021-30739
• CVE-2021-30680
• CVE-2021-30702
• CVE-2021-30696
• CVE-2021-30679
• CVE-2020-36226
• CVE-2020-36227
• CVE-2020-36223
• CVE-2020-36224
• CVE-2020-36225
• CVE-2020-36221
• CVE-2020-36228
• CVE-2020-36222
• CVE-2020-36230
• CVE-2020-36229
• CVE-2021-30738
• CVE-2021-30751
• CVE-2021-30716
• CVE-2021-30717
• CVE-2021-30721
• CVE-2021-30722
• CVE-2021-30712
• CVE-2021-30668
• CVE-2021-30718
• CVE-2021-30671
• CVE-2021-30713
• CVE-2021-30665
• CVE-2021-30663

Frequently Asked Questions

• What is CVE-2021-30753?

  CVE-2021-30753 is a vulnerability in CoreText that can result in the disclosure of process memory when processing a maliciously crafted font.

• Which software versions are affected by CVE-2021-30753?

  CVE-2021-30753 affects Apple tvOS up to version 14.6, Apple watchOS up to version 7.5, Apple macOS Big Sur up to version 11.4, Apple iOS up to version 14.6, and Apple iPadOS up to version 14.6.

• What is the severity of CVE-2021-30753?

  The severity of CVE-2021-30753 is not specified in the provided information.

• How can I fix CVE-2021-30753?

  To fix CVE-2021-30753, update to the latest available version of Apple tvOS, watchOS, macOS Big Sur, iOS, or iPadOS depending on the affected software.