CVE-2021-30833: Medium severity apple macos vulnerability

Published Oct 25, 2021
·
Updated

This issue was addressed with improved checks. This issue is fixed in macOS Monterey 12.0.1. Unpacking a maliciously crafted archive may allow an attacker to write arbitrary files.

Other sources

xar. This issue was addressed with improved checks.

Credit

Richard Warren(NCC Group), Richard Warren(NCC Group), Richard Warren(NCC Group)

Affected Software

16 affected componentsFixes available
Apple macOS Big Sur<11.6.1
11.6.1
Apple Catalina
Apple macOS Monterey<12.0.1
12.0.1
Apple iOS and macOS>=10.15<10.15.7
Apple iOS and macOS=10.15.7
Apple iOS and macOS=10.15.7-security_update_2020
Apple iOS and macOS=10.15.7-security_update_2020-001
Apple iOS and macOS=10.15.7-security_update_2020-005
Apple iOS and macOS=10.15.7-security_update_2020-007
Apple iOS and macOS=10.15.7-security_update_2021-001
Apple iOS and macOS=10.15.7-security_update_2021-002
Apple iOS and macOS=10.15.7-security_update_2021-003
Apple iOS and macOS=10.15.7-security_update_2021-006
Apple iOS and macOS=10.15.7-supplemental_update
Apple macOS<12.0.1
Apple macOS>=11.6<11.6.1

Event History

Oct 28, 2021
CVE Published
via MITRE·06:17 PM
Data Sourced
via MITRE·06:17 PM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

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Frequently Asked Questions

1

What is the vulnerability ID of this issue?

The vulnerability ID of this issue is CVE-2021-30833.

2

What software is affected by this vulnerability?

The software affected by this vulnerability includes Apple Catalina, Apple macOS Big Sur (up to version 11.6.1), and Apple macOS Monterey (up to version 12.0.1).

3

How was this vulnerability addressed?

This vulnerability was addressed with improved checks.

4

What is the severity level of this vulnerability?

The severity level of this vulnerability has not been specified.

5

Where can I find more information about this vulnerability?

You can find more information about this vulnerability on the following Apple support pages: [Link 1](https://support.apple.com/en-us/HT212871), [Link 2](https://support.apple.com/en-us/HT212872), [Link 3](https://support.apple.com/en-us/HT212869).

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