CVE-2021-1817
First published: Mon Apr 26 2021(Updated: )
A memory corruption issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. Processing maliciously crafted web content may lead to arbitrary code execution.
Credit: zhunki zhunki zhunki zhunki product-security@apple.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Apple iOS | <14.5 | 14.5 |
| Apple iPadOS | <14.5 | 14.5 |
| Apple tvOS | <14.5 | 14.5 |
| <7.4 | 7.4 | |
| Apple macOS Big Sur | <11.3 | 11.3 |
| IBM Cloud Pak for Security (CP4S) | <=1.7.2.0 | |
| IBM Cloud Pak for Security (CP4S) | <=1.7.1.0 | |
| IBM Cloud Pak for Security (CP4S) | <=1.7.0.0 | |
| Apple iPadOS | <14.5 | |
| Apple iPhone OS | <14.5 | |
| Apple macOS | >=11.0<11.3 | |
| Apple tvOS | <14.5 | |
| Apple watchOS | <7.4 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://exchange.xforce.ibmcloud.com/vulnerabilities/200746
- https://www.ibm.com/support/pages/node/6493729 (Advisory)
- 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)
Peer vulnerabilities
(Found alongside the following vulnerabilities)
- CVE-2021-1835
- CVE-2021-1837
- CVE-2021-1867
- CVE-2021-1849
- CVE-2021-1836
- CVE-2021-1808
- CVE-2021-30742
- CVE-2021-1857
- CVE-2021-30752
- CVE-2021-30664
- CVE-2021-1846
- CVE-2021-1809
- CVE-2021-30659
- CVE-2021-1812
- CVE-2021-1811
- CVE-2021-1872
- CVE-2021-1881
- CVE-2021-1882
- CVE-2021-1813
- CVE-2021-30656
- CVE-2021-1883
- CVE-2021-1884
- CVE-2021-30743
- CVE-2021-1885
- CVE-2021-30653
- CVE-2021-1843
- CVE-2021-1858
- CVE-2021-30764
- CVE-2021-30662
- CVE-2021-1864
- CVE-2021-1877
- CVE-2021-1852
- CVE-2021-1830
- CVE-2021-1874
- CVE-2021-1851
- CVE-2021-1860
- CVE-2021-1816
- CVE-2021-1832
- CVE-2021-30660
- CVE-2021-30652
- CVE-2021-1875
- CVE-2021-1833
- CVE-2021-1822
- CVE-2021-1865
- CVE-2021-1815
- CVE-2021-1739
- CVE-2021-1740
- CVE-2021-1863
- CVE-2021-1807
- CVE-2021-1831
- CVE-2021-1862
- CVE-2021-1868
- CVE-2021-1854
- CVE-2021-30921
- CVE-2021-1848
- CVE-2021-1825
- CVE-2021-1817
- CVE-2021-1826
- CVE-2021-1820
- CVE-2021-30661
- CVE-2020-7463
- CVE-2021-1770
- CVE-2021-1844
- CVE-2021-1880
- CVE-2021-1814
- CVE-2021-1853
- CVE-2021-1810
- CVE-2021-1847
- CVE-2020-8284
- CVE-2020-8286
- CVE-2020-8285
- CVE-2021-1784
- CVE-2021-30658
- CVE-2021-1841
- CVE-2021-1834
- CVE-2021-1840
- CVE-2021-1824
- CVE-2021-1859
- CVE-2021-1876
- CVE-2021-1861
- CVE-2021-1855
- CVE-2021-30750
- CVE-2021-1878
- CVE-2021-30657
- CVE-2021-30856
- CVE-2020-8037
- CVE-2021-1839
- CVE-2021-1828
- CVE-2021-1829
- CVE-2021-30655
- CVE-2021-1873
Frequently Asked Questions
What is CVE-2021-1817?
CVE-2021-1817 is a memory corruption issue in WebKit that was addressed with improved state management.
Which software versions are affected by CVE-2021-1817?
Apple iOS up to version 14.5, Apple iPadOS up to version 14.5, Apple watchOS up to version 7.4, Apple macOS Big Sur up to version 11.3, and Apple tvOS up to version 14.5 are affected by CVE-2021-1817.
How can I fix CVE-2021-1817?
To fix CVE-2021-1817, update your software to the latest version provided by Apple.
Where can I find more information about CVE-2021-1817?
You can find more information about CVE-2021-1817 on the following Apple Support pages: [Link 1](https://support.apple.com/en-us/HT212317), [Link 2](https://support.apple.com/en-us/HT212324), and [Link 3](https://support.apple.com/en-us/HT212325).
Is CVE-2021-1817 a critical vulnerability?
The severity of CVE-2021-1817 is not specified in the provided information.
- agent/author
- agent/description
- agent/event
- agent/first-publish-date
- agent/last-modified-date
- agent/references
- agent/severity
- agent/softwarecombine
- agent/tags
- agent/type
- agent/weakness
- collector/apple-support
- agent/software-canonical-lookup-request
- source/Apple
- agent/software-canonical-lookup
- collector/ibm-support
- collector/nvd-index
- vendor/apple
- canonical/apple ios
- canonical/apple ipados
- canonical/apple tvos
- canonical/apple watchos
- canonical/apple macos big sur
- vendor/ibm
- canonical/ibm cloud pak for security (cp4s)
- version/ibm cloud pak for security (cp4s)/1.7.2.0
- version/ibm cloud pak for security (cp4s)/1.7.1.0
- version/ibm cloud pak for security (cp4s)/1.7.0.0
- canonical/apple iphone os
- canonical/apple macos
- version/apple macos/11.0