CVE-2021-30721: Medium severity apple macos vulnerability

Published May 24, 2021
·
Updated

A path handling issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina, Security Update 2021-004 Mojave. An attacker in a privileged network position may be able to leak sensitive user information.

Other sources

smbx. A path handling issue was addressed with improved validation.

Credit

Aleksandar Nikolic(Cisco Talos), Aleksandar Nikolic(Cisco Talos), Aleksandar Nikolic(Cisco Talos)

Affected Software

33 affected componentsFixes available
Apple macOS Big Sur<11.4
11.4
Apple Catalina
Apple Mojave
Apple iOS and macOS>=10.14.0<=10.14.5
Apple iOS and macOS>=10.15<=10.15.6
Apple iOS and macOS=10.14.6
Apple iOS and macOS=10.14.6-security_update_2019-001
Apple iOS and macOS=10.14.6-security_update_2019-002
Apple iOS and macOS=10.14.6-security_update_2019-004
Apple iOS and macOS=10.14.6-security_update_2019-005
Apple iOS and macOS=10.14.6-security_update_2019-006
Apple iOS and macOS=10.14.6-security_update_2019-007
Apple iOS and macOS=10.14.6-security_update_2020-001
Apple iOS and macOS=10.14.6-security_update_2020-002
Apple iOS and macOS=10.14.6-security_update_2020-003
Apple iOS and macOS=10.14.6-security_update_2020-004
Apple iOS and macOS=10.14.6-security_update_2020-005
Apple iOS and macOS=10.14.6-security_update_2020-006
Apple iOS and macOS=10.14.6-security_update_2020-007
Apple iOS and macOS=10.14.6-security_update_2021-001
Apple iOS and macOS=10.14.6-security_update_2021-002
Apple iOS and macOS=10.14.6-security_update_2021-003
Apple iOS and macOS=10.14.6-supplemental_update
Apple iOS and macOS=10.14.6-supplemental_update_2
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-supplemental_update
Apple macOS>=11.0.1<11.4

Event History

Sep 8, 2021
CVE Published
via MITRE·01:41 PM
Data Sourced
via MITRE·01:41 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 CVE-2021-30721?

CVE-2021-30721 is a vulnerability in smb and it is a path handling issue that was addressed with improved validation.

2

What is the severity of CVE-2021-30721?

The severity of CVE-2021-30721 is not mentioned in the available information.

3

How does CVE-2021-30721 affect macOS Big Sur?

CVE-2021-30721 affects macOS Big Sur version 11.4.

4

How does CVE-2021-30721 affect macOS Mojave?

There is no specific mention of how CVE-2021-30721 affects macOS Mojave in the available information.

5

How does CVE-2021-30721 affect macOS Catalina?

There is no specific mention of how CVE-2021-30721 affects macOS Catalina in the available information.

6

How can I fix CVE-2021-30721?

To fix CVE-2021-30721, update your macOS Big Sur to version 11.4.

Company

Resources

Contact

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