CVE-2021-30868: Race Condition
First published: Tue Aug 24 2021(Updated: )
A race condition was addressed with improved locking. This issue is fixed in macOS Monterey 12.0.1, macOS Big Sur 11.6.1. A malicious application may be able to execute arbitrary code with kernel privileges.
Credit: Peter Nguyen Vu Hoang STAR Labs cve@mitre.org Peter Nguyen Vu Hoang STAR Labs
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Apple macOS Monterey | <12.0.1 | 12.0.1 |
| Apple macOS Big Sur | <11.6.1 | 11.6.1 |
| Apple macOS | >=11.0<11.6.1 | |
| Apple macOS | =12.0 |
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Reference Links
- https://support.apple.com/en-us/HT212869 (Advisory)
- https://support.apple.com/en-us/HT212872 (Advisory)
Peer vulnerabilities
(Found alongside the following vulnerabilities)
- CVE-2021-30873
- CVE-2021-30876
- CVE-2021-30879
- CVE-2021-30877
- CVE-2021-30880
- CVE-2021-30994
- CVE-2021-30907
- CVE-2021-30899
- CVE-2021-30931
- CVE-2021-30866
- CVE-2021-30917
- CVE-2021-30903
- CVE-2021-30905
- CVE-2021-30919
- CVE-2020-9846
- CVE-2021-30881
- CVE-2021-30923
- CVE-2021-30831
- CVE-2021-30840
- CVE-2021-30852
- CVE-2021-30895
- CVE-2021-30896
- CVE-2021-30933
- CVE-2021-30906
- CVE-2021-30867
- CVE-2021-30814
- CVE-2021-30922
- CVE-2021-30824
- CVE-2021-30901
- CVE-2021-30821
- CVE-2021-30883
- CVE-2021-30924
- CVE-2021-30886
- CVE-2021-30909
- CVE-2021-30916
- CVE-2021-30864
- CVE-2021-30813
- CVE-2021-31011
- CVE-2021-30904
- CVE-2021-30910
- CVE-2021-30911
- CVE-2021-30874
- CVE-2021-30808
- CVE-2021-30920
- CVE-2021-31004
- CVE-2021-31002
- CVE-2021-30868
- CVE-2021-30912
- CVE-2021-30913
- CVE-2021-30915
- CVE-2021-31005
- CVE-2021-31008
- CVE-2021-30897
- CVE-2021-30884
- CVE-2021-30818
- CVE-2021-30836
- CVE-2021-30846
- CVE-2021-30849
- CVE-2021-30848
- CVE-2021-30851
- CVE-2021-30809
- CVE-2021-30823
- CVE-2021-30887
- CVE-2021-30888
- CVE-2021-30889
- CVE-2021-30861
- CVE-2021-30890
- CVE-2021-30930
- CVE-2021-30908
- CVE-2021-30833
- CVE-2021-30892
- CVE-2021-30926
- CVE-2021-30900
- CVE-2021-30844
Frequently Asked Questions
What is CVE-2021-30868?
CVE-2021-30868 is a vulnerability related to SMB (Server Message Block) protocol. It is a race condition that was addressed with improved locking.
Which software is affected by CVE-2021-30868?
The affected software includes Apple macOS Big Sur versions up to and excluding 11.6.1 and Apple macOS Monterey versions up to and excluding 12.0.1.
How severe is CVE-2021-30868?
The severity of CVE-2021-30868 is not provided.
How can I fix CVE-2021-30868?
To fix CVE-2021-30868, update your Apple macOS Big Sur to version 11.6.1 or later, or update your Apple macOS Monterey to version 12.0.1 or later.
Where can I find more information about CVE-2021-30868?
You can find more information about CVE-2021-30868 on the Apple support website. [Link 1](https://support.apple.com/en-us/HT212872) [Link 2](https://support.apple.com/en-us/HT212869)
- collector/apple-support
- collector/nvd-index
- agent/author
- agent/severity
- agent/references
- agent/type
- agent/description
- agent/event
- agent/last-modified-date
- agent/first-publish-date
- agent/weakness
- agent/softwarecombine
- agent/software-canonical-lookup-request
- agent/tags
- collector/mitre-cve
- source/MITRE
- vendor/apple
- canonical/apple macos monterey
- canonical/apple macos
- version/apple macos/11.0
- version/apple macos/12.0
- canonical/apple macos big sur