CVE-2021-1878: Input Validation

Published Apr 26, 2021
·
Updated

An integer overflow was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina, Security Update 2021-003 Mojave. An attacker in a privileged network position may be able to leak sensitive user information.

Other sources

smbx. An integer overflow was addressed with improved input validation.

Credit

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

Affected Software

32 affected componentsFixes available
Apple macOS Big Sur<11.3
11.3
Apple Catalina
Apple Mojave
Apple iOS and macOS>=10.14<=10.14.5
Apple iOS and macOS>=10.15<=10.15.5
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-supplemental_update
Apple iOS and macOS=10.14.6-supplemental_update_2
Apple iOS and macOS=10.15.6
Apple iOS and macOS=10.15.6-supplemental_update
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 macOS>=11.0<11.3

Event History

Sep 8, 2021
CVE Published
via MITRE·02:46 PM
Data Sourced
via MITRE·02:46 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 for this issue?

The vulnerability ID for this issue is CVE-2021-1878.

2

What is the title of the vulnerability?

The title of the vulnerability is 'smbx. An integer overflow was addressed with improved input validation.'

3

What is the affected software?

The affected software includes Apple Catalina, Apple Mojave, and Apple macOS Big Sur (up to version 11.3).

4

How was the vulnerability addressed?

The vulnerability was addressed by implementing improved input validation.

5

Where can I find more information about this vulnerability?

You can find more information about this vulnerability at the following references: [link1], [link2], [link3].

Company

Resources

Contact

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