CVE-2021-30586: Use after free in dialog box handling on Windows

Published Apr 21, 2021
·
Updated

Use after free in dialog box handling in Windows in Google Chrome prior to 92.0.4515.107 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page.

Credit

kkomdal with kkwon, neodal

Affected Software

16 affected componentsFixes available
Google Chrome<92.0.4515.107
92.0.4515.107
Google Chrome<92.0.4515.107
Fedoraproject Fedora=33
Fedoraproject Fedora=34
Fedoraproject Fedora=35
alpine/chromium<92.0.4515.107-r0
92.0.4515.107-r0
alpine/chromium<92.0.4515.107-r0
92.0.4515.107-r0
alpine/chromium<92.0.4515.107-r0
92.0.4515.107-r0
alpine/chromium<92.0.4515.107-r0
92.0.4515.107-r0
alpine/chromium<92.0.4515.107-r0
92.0.4515.107-r0
alpine/chromium<92.0.4515.107-r0
92.0.4515.107-r0
alpine/chromium<92.0.4515.107-r0
92.0.4515.107-r0
alpine/chromium<92.0.4515.107-r0
92.0.4515.107-r0
alpine/chromium<92.0.4515.107-r0
92.0.4515.107-r0
alpine/chromium<92.0.4515.107-r0
92.0.4515.107-r0
alpine/chromium<92.0.4515.107-r0
92.0.4515.107-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 92.0.4515.107
  2. Upgrade

    Upgrade alpine/chromium to a version that resolves this vulnerability.

    Fixed in 92.0.4515.107-r0
  3. Upgrade

    Upgrade Google Chrome to a version that resolves this vulnerability.

    Fixed in 92.0.4515.107

Event History

Apr 21, 2021
CVE Published
12:00 AM
Aug 3, 2021
CVE Published
via MITRE·07:41 PM
Data Sourced
via MITRE·07:41 PM
DescriptionWeakness
Data Sourced
via OSV·08:15 PM
DescriptionSeverityAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Frequently Asked Questions

1

What is the severity of CVE-2021-30586?

CVE-2021-30586 has a high severity rating due to its potential for heap corruption and exploitation through malicious extensions.

2

How do I fix CVE-2021-30586?

To fix CVE-2021-30586, update Google Chrome to version 92.0.4515.107 or later.

3

What systems are affected by CVE-2021-30586?

CVE-2021-30586 affects Google Chrome versions prior to 92.0.4515.107 and specific versions of Fedora.

4

What type of vulnerability is CVE-2021-30586?

CVE-2021-30586 is classified as a use-after-free vulnerability related to dialog box handling in Google Chrome.

5

Can CVE-2021-30586 be exploited remotely?

Yes, CVE-2021-30586 can be exploited remotely if a user is convinced to install a malicious extension.

Contact

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