CVE-2021-1744: Input Validation

Reference Links

• https://support.apple.com/en-us/HT212148 (Advisory)
• https://support.apple.com/en-us/HT212149 (Advisory)
• https://support.apple.com/en-us/HT212146 (Advisory)
• https://support.apple.com/en-us/HT212147 (Advisory)

Parent vulnerabilities

(Appears in the following advisories)

• HT212149
• HT212147
• HT212146
• HT212148

Peer vulnerabilities

(Found alongside the following vulnerabilities)

• CVE-2021-1761
• CVE-2021-1797
• CVE-2021-1760
• CVE-2021-1747
• CVE-2021-1776
• CVE-2021-1759
• CVE-2021-1772
• CVE-2021-1792
• CVE-2021-1786
• CVE-2021-1787
• CVE-2021-1791
• CVE-2021-1758
• CVE-2021-1818
• CVE-2021-1766
• CVE-2021-1785
• CVE-2021-1744
• CVE-2021-1742
• CVE-2021-1746
• CVE-2021-1754
• CVE-2021-1774
• CVE-2021-1777
• CVE-2021-1793
• CVE-2021-1773
• CVE-2021-1741
• CVE-2021-1743
• CVE-2021-1778
• CVE-2021-1783
• CVE-2021-1757
• CVE-2021-1748
• CVE-2021-1764
• CVE-2021-1750
• CVE-2021-1782
• CVE-2021-1769
• CVE-2021-1788
• CVE-2021-1789
• CVE-2021-1801
• CVE-2021-1799
• CVE-2020-27945
• CVE-2020-27937
• CVE-2021-1802
• CVE-2021-1790
• CVE-2021-1775
• CVE-2020-29608
• CVE-2021-1736
• CVE-2021-1737
• CVE-2021-1738
• CVE-2021-1779
• CVE-2020-27904
• CVE-2020-29633
• CVE-2021-1781
• CVE-2021-1771
• CVE-2021-1762
• CVE-2020-29614
• CVE-2021-1763
• CVE-2021-1767
• CVE-2021-1745
• CVE-2021-1753
• CVE-2021-1768
• CVE-2021-1751
• CVE-2020-25709
• CVE-2020-27938
• CVE-2019-20838
• CVE-2020-14155
• CVE-2020-15358
• CVE-2021-1765
• CVE-2021-1871
• CVE-2021-1870
• CVE-2021-30869
• CVE-2021-1794
• CVE-2021-1795
• CVE-2021-1796
• CVE-2021-1780
• CVE-2021-1838
• CVE-2021-1756

Frequently Asked Questions

• What is CVE-2021-1744?

  CVE-2021-1744 is a vulnerability in ImageIO that allows for an out-of-bounds write due to improved input validation.

• How does CVE-2021-1744 impact Apple macOS Big Sur 11.2?

  CVE-2021-1744 affects Apple macOS Big Sur 11.2 and can result in an out-of-bounds write vulnerability.

• What versions of Apple watchOS are affected by CVE-2021-1744?

  CVE-2021-1744 impacts Apple watchOS versions up to exclusive 7.3.

• What is the remedy for CVE-2021-1744 on Apple iOS?

  The remedy for CVE-2021-1744 on Apple iOS is to update to version 14.4 or higher.

• Where can I find more information about CVE-2021-1744?

  You can find more information about CVE-2021-1744 in Apple's security advisories: [link 1](https://support.apple.com/en-us/HT212149), [link 2](https://support.apple.com/en-us/HT212147), [link 3](https://support.apple.com/en-us/HT212148).