CVE-2021-21140: Uninitialized Use in USB

Published Oct 8, 2020
·
Updated

Uninitialized use in USB in Google Chrome prior to 88.0.4324.96 allowed a local attacker to potentially perform out of bounds memory access via via a USB device.

Credit

David Manouchehri

Affected Software

13 affected componentsFixes available
Google Chrome<88.0.4324.96
88.0.4324.96
Google Chrome<88.0.4324.96
Microsoft Edge<88.0.705.74
alpine/qt5-qtwebengine<5.15.3_git20200401-r0
5.15.3_git20200401-r0
alpine/qt5-qtwebengine<5.15.3_git20200401-r0
5.15.3_git20200401-r0
alpine/qt5-qtwebengine<5.15.3_git20200401-r0
5.15.3_git20200401-r0
alpine/qt5-qtwebengine<5.15.3_git20200401-r0
5.15.3_git20200401-r0
alpine/qt5-qtwebengine<5.15.3_git20200401-r0
5.15.3_git20200401-r0
alpine/qt5-qtwebengine<5.15.3_git20200401-r0
5.15.3_git20200401-r0
alpine/qt5-qtwebengine<5.15.3_git20200401-r0
5.15.3_git20200401-r0
alpine/qt5-qtwebengine<5.15.3_git20200401-r0
5.15.3_git20200401-r0
alpine/qt5-qtwebengine<5.15.3_git20200401-r0
5.15.3_git20200401-r0
alpine/qt5-qtwebengine<5.15.3_git20200401-r0
5.15.3_git20200401-r0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Google Chrome (Trace Event) to a version that resolves this vulnerability.

    Fixed in 88.0.4324.96
  2. Upgrade

    Upgrade alpine/qt5-qtwebengine to a version that resolves this vulnerability.

    Fixed in 5.15.3_git20200401-r0

Event History

Oct 8, 2020
CVE Published
12:00 AM
Feb 9, 2021
CVE Published
via MITRE·01:56 PM
Data Sourced
via MITRE·01:56 PM
DescriptionWeakness
Data Sourced
via NVD·02:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Data Sourced
via OSV·02:15 PM
DescriptionSeverityAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Frequently Asked Questions

1

What is the severity of CVE-2021-21140?

CVE-2021-21140 has a medium severity rating due to its potential for out of bounds memory access.

2

How do I fix CVE-2021-21140?

To mitigate CVE-2021-21140, users should update Google Chrome to version 88.0.4324.96 or later.

3

What causes CVE-2021-21140?

CVE-2021-21140 is caused by uninitialized use in the USB component of Google Chrome.

4

Which software versions are affected by CVE-2021-21140?

CVE-2021-21140 affects Google Chrome versions prior to 88.0.4324.96 and Microsoft Edge versions prior to 88.0.705.74.

5

Can CVE-2021-21140 be exploited remotely?

CVE-2021-21140 requires local access, making it less likely for remote exploitation.

Contact

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