CVE-2021-30661: Apple Multiple Products WebKit Storage Use-After-Free Vulnerability
First published: Mon Apr 26 2021(Updated: )
A use after free issue was addressed with improved memory management. This issue is fixed in Safari 14.1, iOS 12.5.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..
Credit: yangkang &zerokeeper&bianliang @dnpushme 360 ATAyangkang @dnpushme 360 ATA product-security@apple.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| 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 macOS | <11.3 | 11.3 |
| tvOS | <14.5 | 14.5 |
| Apple Mobile Safari | <14.1 | 14.1 |
| Apple Mobile Safari | <14.1 | |
| Apple iOS, iPadOS, and watchOS | <14.5 | |
| iOS | <12.5.3 | |
| iOS | >=14.0<14.5 | |
| Apple iOS and macOS | >=11.0<11.3 | |
| tvOS | <14.5 | |
| Apple iOS, iPadOS, and watchOS | <7.4 | |
| Apple iOS, iPadOS, and watchOS | <12.5.3 | 12.5.3 |
| Apple iOS, iPadOS, and watchOS | <14.5 | 14.5 |
| Apple iOS, iPadOS, and watchOS | <14.5 | 14.5 |
| Apple Multiple Products | ||
| Apple iOS, iPadOS, and watchOS | <7.4 | 7.4 |
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Reference Links
- https://support.apple.com/en-us/HT212318 (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/en-us/HT212341 (Advisory)
- https://support.apple.com/kb/HT212324
- https://exchange.xforce.ibmcloud.com/vulnerabilities/200749
- https://www.ibm.com/support/pages/node/6493729 (Advisory)
- https://nvd.nist.gov/vuln/detail/CVE-2021-30661
Parent vulnerabilities
(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-2021-30666
- CVE-2021-30665
- CVE-2021-30663
- 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-2021-1807
- CVE-2021-1831
- CVE-2021-1862
- CVE-2021-1854
- CVE-2021-30921
- CVE-2021-1848
Frequently Asked Questions
What is CVE-2021-30661?
CVE-2021-30661 is a use-after-free vulnerability found in Apple iOS, iPadOS, macOS, watchOS, tvOS, and Safari WebKit Storage.
What is the severity of CVE-2021-30661?
The severity of CVE-2021-30661 is not mentioned in the provided information.
How does CVE-2021-30661 work?
CVE-2021-30661 allows for code execution when processing maliciously crafted web content.
Which Apple products are affected by CVE-2021-30661?
Apple iOS, iPadOS, macOS, watchOS, tvOS, and Safari WebKit Storage are affected by CVE-2021-30661.
How do I fix CVE-2021-30661?
To fix CVE-2021-30661, update your Apple devices to the recommended versions provided by Apple.
- agent/first-publish-date
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- agent/severity
- agent/weakness
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- collector/ibm-support
- source/IBM
- agent/software-canonical-lookup
- agent/references
- agent/event
- agent/trending
- collector/apple-support
- agent/software-canonical-lookup-request
- agent/source
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
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- collector/nvd-api
- source/NVD
- collector/nvd-cve
- collector/nvd-index
- exploited/true
- collector/cisa-known-exploited
- source/CISA
- source/Apple
- 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
- vendor/apple
- canonical/apple macos
- canonical/tvos
- canonical/apple mobile safari
- canonical/apple ios, ipados, and watchos
- canonical/ios
- version/ios/14.0
- canonical/apple ios and macos
- version/apple ios and macos/11.0
- canonical/apple multiple products