CVE-2021-1861
First published: Mon Apr 26 2021(Updated: )
An issue existed in determining cache occupancy. The issue was addressed through improved logic. This issue is fixed in macOS Big Sur 11.3. A malicious website may be able to track users by setting state in a cache.
Credit: product-security@apple.com Konstantinos Solomos University of Illinois at Chicago
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Apple macOS Big Sur | <11.3 | 11.3 |
| Apple macOS | >=11.0<11.3 |
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Reference Links
- https://support.apple.com/en-us/HT212325 (Advisory)
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
What is the vulnerability ID for this issue?
The vulnerability ID for this issue is CVE-2021-1861.
What software is affected by this vulnerability?
The software affected by this vulnerability is macOS Big Sur version 11.3 and earlier.
Where can I find more information about this vulnerability?
You can find more information about this vulnerability on the Apple Support website at https://support.apple.com/en-us/HT212325.
What was the issue addressed in this vulnerability?
The issue addressed in this vulnerability was an issue in determining cache occupancy.
How was the issue addressed?
The issue was addressed through improved logic.
- collector/nvd-index
- agent/type
- agent/softwarecombine
- agent/first-publish-date
- collector/apple-support
- agent/software-canonical-lookup-request
- collector/mitre-cve
- source/MITRE
- agent/author
- agent/last-modified-date
- agent/references
- agent/severity
- agent/tags
- agent/description
- agent/event
- agent/trending
- vendor/apple
- canonical/apple macos
- version/apple macos/11.0
- canonical/apple macos big sur