high
8.8
CWE
416
Advisory Published
CVE Published
Updated

CVE-2021-21203: Use after free in Blink

First published: Wed Mar 24 2021(Updated: )

Use after free in Blink in Google Chrome prior to 90.0.4430.72 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Credit: chrome-cve-admin@google.com asnine

Affected SoftwareAffected VersionHow to fix
debian/chromium
90.0.4430.212-1~deb10u1
116.0.5845.180-1~deb11u1
118.0.5993.70-1~deb11u1
116.0.5845.180-1~deb12u1
118.0.5993.70-1~deb12u1
118.0.5993.70-1
Google Chrome (Trace Event)<90.0.4430.72
90.0.4430.72
Google Chrome (Trace Event)<90.0.4430.72
Debian=10.0
Fedora=32
Fedora=33
Fedora=34

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of CVE-2021-21203?

    CVE-2021-21203 has a high severity rating due to its ability to allow remote attackers to exploit heap corruption.

  • How do I fix CVE-2021-21203?

    To fix CVE-2021-21203, update Google Chrome to version 90.0.4430.72 or later.

  • What software is affected by CVE-2021-21203?

    CVE-2021-21203 affects Google Chrome versions prior to 90.0.4430.72 and certain versions of the Chromium package in Debian.

  • Can CVE-2021-21203 be exploited remotely?

    Yes, CVE-2021-21203 can potentially be exploited remotely through a crafted HTML page.

  • What are the implications of not addressing CVE-2021-21203?

    Not addressing CVE-2021-21203 may leave users vulnerable to heap corruption attacks, potentially leading to arbitrary code execution.

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