CVE-2021-1883: Medium severity apple macos vulnerability
Heimdal. This issue was addressed with improved checks.
Other sources
This issue was addressed with improved checks. This issue is fixed in Security Update 2021-004 Mojave, iOS 14.5 and iPadOS 14.5, watchOS 7.4, Security Update 2021-003 Catalina, tvOS 14.5, macOS Big Sur 11.3. Processing maliciously crafted server messages may lead to heap corruption.
Credit
Affected Software
Event History
Parent advisories
This vulnerability appears in the following advisories.
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-2021-30676
- CVE-2021-30678
- CVE-2021-30688
- CVE-2021-30669
- CVE-2021-30685
- CVE-2021-30686
- CVE-2021-30681
- CVE-2021-30724
- CVE-2021-30673
- CVE-2020-29629
- CVE-2021-30684
- CVE-2021-30735
- CVE-2021-30710
- CVE-2021-30697
- CVE-2021-30683
- CVE-2021-30687
- CVE-2021-30701
- CVE-2021-30705
- CVE-2021-30728
- CVE-2021-30719
- CVE-2021-30726
- CVE-2021-30704
- CVE-2021-30715
- CVE-2021-30739
- CVE-2021-30702
- CVE-2021-30696
- CVE-2021-30819
- CVE-2021-30723
- CVE-2021-30691
- CVE-2021-30694
- CVE-2021-30692
- CVE-2021-30746
- CVE-2021-30693
- CVE-2021-30695
- CVE-2021-30708
- CVE-2021-30709
- CVE-2021-30725
- CVE-2021-30679
- CVE-2020-36226
- CVE-2020-36229
- CVE-2020-36225
- CVE-2020-36224
- CVE-2020-36223
- CVE-2020-36227
- CVE-2020-36228
- CVE-2020-36221
- CVE-2020-36222
- CVE-2020-36230
- CVE-2021-30737
- CVE-2021-30716
- CVE-2021-30717
- CVE-2021-30712
- CVE-2021-30721
- CVE-2021-30722
- CVE-2021-30671
- CVE-2021-30690
- CVE-2021-30738
- 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-2021-1883?
CVE-2021-1883 is a vulnerability in Heimdal that has been addressed with improved checks.
Which software versions are affected by CVE-2021-1883?
CVE-2021-1883 affects Apple iOS up to exclusive version 14.5, Apple iPadOS up to exclusive version 14.5, Apple watchOS up to exclusive version 7.4, Apple macOS Big Sur up to exclusive version 11.3, Apple Catalina, Apple tvOS up to exclusive version 14.5, and Apple Mojave.
How can I fix CVE-2021-1883?
To fix CVE-2021-1883, update your Apple devices to the recommended software versions: iOS 14.5, iPadOS 14.5, watchOS 7.4, macOS Big Sur 11.3, tvOS 14.5.
Where can I find more information about CVE-2021-1883?
You can find more information about CVE-2021-1883 on the Apple support page: [link](https://support.apple.com/en-us/HT212530).