CVE-2020-3856: Input Validation
First published: Tue Jan 28 2020(Updated: )
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.
Credit: Ian Beer Google Project ZeroIan Beer Google Project ZeroIan Beer Google Project ZeroIan Beer Google Project Zero product-security@apple.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Apple tvOS | <13.3.1 | 13.3.1 |
| Apple iOS | <13.3.1 | 13.3.1 |
| Apple iPadOS | <13.3.1 | 13.3.1 |
| Apple macOS Catalina | <10.15.3 | 10.15.3 |
| Apple Mojave | ||
| Apple High Sierra | ||
| Apple watchOS | <6.1.2 | 6.1.2 |
| Apple iPadOS | <13.3.1 | |
| Apple iPhone OS | <13.3.1 | |
| Apple Mac OS X | <10.15.3 | |
| Apple tvOS | <13.3.1 | |
| Apple watchOS | <6.1.2 |
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://support.apple.com/en-us/HT210918 (Advisory)
- https://support.apple.com/en-us/HT210919 (Advisory)
- https://support.apple.com/en-us/HT210920 (Advisory)
- https://support.apple.com/en-us/HT210921 (Advisory)
- https://support.apple.com/HT210918
- https://support.apple.com/HT210919
- https://support.apple.com/HT210920
- https://support.apple.com/HT210921
Peer vulnerabilities
(Found alongside the following vulnerabilities)
- CVE-2020-3857
- CVE-2020-3869
- 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-2020-3858
- CVE-2020-3831
- CVE-2020-3853
- CVE-2020-3860
- CVE-2020-3846
- CVE-2020-3856
- CVE-2020-3829
- CVE-2020-3873
- CVE-2020-3859
- CVE-2020-3844
- CVE-2020-3828
- CVE-2020-3841
- CVE-2020-3874
- CVE-2020-3862
- CVE-2020-3825
- CVE-2020-3868
- CVE-2020-3867
- CVE-2020-3864
- CVE-2020-3865
- CVE-2020-3843
- 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-2020-3834
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)
- 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
- collector/nvd-index
- vendor/apple
- canonical/apple ios
- canonical/apple ipados
- canonical/apple macos catalina
- canonical/apple mojave
- canonical/apple high sierra
- canonical/apple tvos
- canonical/apple watchos
- canonical/apple iphone os
- canonical/apple mac os x