CVE-2021-1796: Input Validation

Reference Links

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

Parent vulnerabilities

(Appears in the following advisories)

• HT212146

Peer vulnerabilities

(Found alongside the following vulnerabilities)

• CVE-2021-1761
• CVE-2021-1797
• CVE-2021-1794
• CVE-2021-1795
• CVE-2021-1796
• CVE-2021-1780
• 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-2021-1773
• CVE-2021-1766
• CVE-2021-1785
• CVE-2021-1737
• CVE-2021-1738
• CVE-2021-1744
• CVE-2021-1818
• CVE-2021-1838
• CVE-2021-1742
• CVE-2021-1746
• CVE-2021-1754
• CVE-2021-1774
• CVE-2021-1793
• 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-2021-1781
• CVE-2021-1763
• CVE-2021-1768
• CVE-2021-1745
• CVE-2021-1762
• CVE-2021-1767
• CVE-2021-1753
• CVE-2021-1756
• CVE-2021-1769
• CVE-2021-1788
• CVE-2021-1789
• CVE-2021-1801
• CVE-2021-1871
• CVE-2021-1870
• CVE-2021-1799
• CVE-2021-30869

Frequently Asked Questions

• What is CVE-2021-1796?

  CVE-2021-1796 is a vulnerability in Bluetooth that allows for an out-of-bounds write, which has been addressed through improved input validation.

• What software is affected by CVE-2021-1796?

  The Apple iOS and iPadOS versions up to and excluding 14.4 are affected by CVE-2021-1796.

• How severe is CVE-2021-1796?

  The severity of CVE-2021-1796 is not specified.

• How can I fix CVE-2021-1796?

  To fix CVE-2021-1796, update your Apple iOS or iPadOS to version 14.4 or later.

• Where can I find more information about CVE-2021-1796?

  You can find more information about CVE-2021-1796 on the Apple support website at the following link: [https://support.apple.com/en-us/HT212146](https://support.apple.com/en-us/HT212146)