CVE-2020-3856: Input Validation
A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1, macOS Catalina 10.15.3, tvOS 13.3.1, watchOS 6.1.2. Processing a maliciously crafted string may lead to heap corruption.
Other sources
libxpc. A memory corruption issue was addressed with improved input validation.
Credit
Affected Software
Event History
Parent advisories
This vulnerability appears in the following advisories.
Peer vulnerabilities
Found alongside the following vulnerabilities.
- CVE-2020-3857
- CVE-2020-3855
- CVE-2020-3826
- CVE-2020-3870
- CVE-2020-3878
- CVE-2020-3880
- CVE-2020-3837
- CVE-2019-8836
- CVE-2020-3840
- CVE-2020-3875
- CVE-2020-3872
- CVE-2020-3836
- CVE-2020-3842
- CVE-2020-3853
- CVE-2020-3846
- CVE-2020-3856
- CVE-2020-3829
- CVE-2020-3825
- CVE-2020-3868
- CVE-2020-3862
- CVE-2020-3867
- CVE-2020-3865
- CVE-2020-3864
- CVE-2020-3838
- CVE-2020-3877
- CVE-2019-11043
- CVE-2020-3866
- CVE-2020-3848
- CVE-2020-3849
- CVE-2020-3850
- CVE-2020-3847
- CVE-2020-3835
- CVE-2020-3863
- CVE-2020-9774
- CVE-2020-3827
- CVE-2020-3845
- CVE-2020-3851
- CVE-2020-3871
- CVE-2020-3830
- CVE-2020-3854
- CVE-2019-18634
- CVE-2020-3839
- CVE-2020-3843
- CVE-2020-3834
- CVE-2020-3860
- CVE-2020-3869
- CVE-2020-3858
- CVE-2020-3831
- CVE-2020-3873
- CVE-2020-3859
- CVE-2020-3844
- CVE-2020-3828
- CVE-2020-3841
- CVE-2020-3874
Frequently Asked Questions
What is CVE-2020-3856?
CVE-2020-3856 is a memory corruption issue in libxpc that has been addressed with improved input validation.
Which software products are affected by CVE-2020-3856?
CVE-2020-3856 affects Apple tvOS, watchOS, iOS, iPadOS, macOS Catalina, Mojave, and High Sierra.
What is the severity of CVE-2020-3856?
The severity of CVE-2020-3856 is not specified.
How can I fix CVE-2020-3856?
To fix CVE-2020-3856, update your Apple tvOS, watchOS, iOS, iPadOS, or macOS to the specified remedy versions.
Where can I find more information about CVE-2020-3856?
You can find more information about CVE-2020-3856 on the following Apple support pages: [support.apple.com/en-us/HT210920](support.apple.com/en-us/HT210920), [support.apple.com/en-us/HT210921](support.apple.com/en-us/HT210921), [support.apple.com/en-us/HT210919](support.apple.com/en-us/HT210919)