CVE-2021-1855: Medium severity apple macos vulnerability
Published Apr 26, 2021
·Updated
A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.3. A malicious website may be able to force unnecessary network connections to fetch its favicon.
Other sources
Safari. A logic issue was addressed with improved state management.
Credit
Håvard Mikkelsen Ottestad(HASMAC AS)
Affected Software
2 affected componentsFixes available
Apple macOS Big Sur<11.3
11.3
macOS>=11.0<11.3
Event History
Sep 8, 2021
CVE Published
via MITRE·02:45 PM
Data Sourced
via MITRE·02:45 PM
DescriptionWeakness
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
Frequently Asked Questions
1
What is CVE-2021-1855?
CVE-2021-1855 is a vulnerability in Safari that was addressed with improved state management.
2
How does CVE-2021-1855 impact Apple macOS Big Sur 11.3?
CVE-2021-1855 affects Apple macOS Big Sur 11.3.
3
Is there a fix available for CVE-2021-1855?
Yes, the vulnerability has been addressed in Apple macOS Big Sur 11.3.
4
Where can I find more information about CVE-2021-1855?
You can find more information about CVE-2021-1855 on the Apple support website.