CVE-2021-1770: Buffer Overflow

Reference Links

• https://support.apple.com/en-us/HT212325 (Advisory)
• https://support.apple.com/en-us/HT212317 (Advisory)
• https://support.apple.com/en-us/HT212323 (Advisory)
• https://support.apple.com/en-us/HT212324 (Advisory)
• https://support.apple.com/kb/HT212324

Parent vulnerabilities

(Appears in the following advisories)

• HT212325
• HT212323
• HT212324
• HT212317

Peer vulnerabilities

(Found alongside the following vulnerabilities)

• CVE-2021-1853
• CVE-2021-1849
• CVE-2021-1867
• CVE-2021-1810
• CVE-2021-1808
• CVE-2021-1857
• CVE-2021-30752
• CVE-2021-30664
• CVE-2021-1846
• CVE-2021-1809
• CVE-2021-30659
• CVE-2021-1847
• CVE-2021-1811
• CVE-2020-8284
• CVE-2020-8286
• CVE-2020-8285
• CVE-2021-1784
• CVE-2021-1872
• CVE-2021-1881
• CVE-2021-1882
• CVE-2021-1813
• CVE-2021-1883
• CVE-2021-1884
• CVE-2021-1880
• CVE-2021-30653
• CVE-2021-1814
• CVE-2021-1843
• CVE-2021-1885
• CVE-2021-1858
• CVE-2021-30743
• CVE-2021-30658
• CVE-2021-1841
• CVE-2021-1834
• CVE-2021-1860
• CVE-2021-1840
• CVE-2021-1851
• CVE-2021-1832
• CVE-2021-30660
• CVE-2021-30652
• CVE-2021-1875
• CVE-2021-1824
• CVE-2021-1859
• CVE-2021-1876
• CVE-2021-1815
• CVE-2021-1739
• CVE-2021-1740
• CVE-2021-1861
• CVE-2021-1855
• CVE-2021-1868
• CVE-2021-30750
• CVE-2021-1878
• CVE-2021-30657
• CVE-2021-30856
• CVE-2020-8037
• CVE-2021-1839
• CVE-2021-1825
• CVE-2021-1817
• CVE-2021-1826
• CVE-2021-1820
• CVE-2021-30661
• CVE-2020-7463
• CVE-2021-1828
• CVE-2021-1829
• CVE-2021-30655
• CVE-2021-1770
• CVE-2021-1873
• CVE-2021-1836
• CVE-2021-30764
• CVE-2021-1864
• CVE-2021-1816
• CVE-2021-1822
• CVE-2021-1844
• CVE-2021-1807
• CVE-2021-1835
• CVE-2021-1837
• CVE-2021-30742
• CVE-2021-1812
• CVE-2021-30656
• CVE-2021-30662
• CVE-2021-1877
• CVE-2021-1852
• CVE-2021-1830
• CVE-2021-1874
• CVE-2021-1833
• CVE-2021-1865
• CVE-2021-1863
• CVE-2021-1831
• CVE-2021-1862
• CVE-2021-1854
• CVE-2021-30921
• CVE-2021-1848

Frequently Asked Questions

• What is CVE-2021-1770?

  CVE-2021-1770 is a vulnerability in Wi-Fi that may result in arbitrary code execution due to a buffer overflow.

• How does CVE-2021-1770 affect Apple iOS?

  CVE-2021-1770 affects Apple iOS versions up to and excluding 14.5.

• How does CVE-2021-1770 affect Apple iPadOS?

  CVE-2021-1770 affects Apple iPadOS versions up to and excluding 14.5.

• How does CVE-2021-1770 affect Apple watchOS?

  CVE-2021-1770 affects Apple watchOS versions up to and excluding 7.4.

• How does CVE-2021-1770 affect Apple macOS Big Sur?

  CVE-2021-1770 affects Apple macOS Big Sur versions up to and excluding 11.3.

• How does CVE-2021-1770 affect Apple tvOS?

  CVE-2021-1770 affects Apple tvOS versions up to and excluding 14.5.

• What is the Common Weakness Enumeration (CWE) ID for CVE-2021-1770?

  The CWE ID for CVE-2021-1770 is 119.