CVE-2021-4319: Use after free in Blink

Reference Links

• https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop.html (Advisory)
• https://crbug.com/1214199
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PQKT7EGDD2P3L7S3NXEDDRCPK4NNZNWJ/

Parent vulnerabilities

(Appears in the following advisories)

• 2705646769654617144

Peer vulnerabilities

(Found alongside the following vulnerabilities)

• CVE-2021-30625
• CVE-2021-30626
• CVE-2021-30627
• CVE-2021-30628
• CVE-2021-30629
• CVE-2021-30630
• CVE-2021-30632
• CVE-2021-30633

Frequently Asked Questions

• What is CVE-2021-4319?

  CVE-2021-4319 is a vulnerability that allows a remote attacker to perform arbitrary read/write operations in Google Chrome versions prior to 93.0.4577.82.

• What is the severity of CVE-2021-4319?

  The severity of CVE-2021-4319 is High with a severity score of 8.8.

• How does CVE-2021-4319 work?

  CVE-2021-4319 is a use after free vulnerability in Blink in Google Chrome, which allows a remote attacker to exploit a memory corruption issue and manipulate the browser's memory to perform arbitrary read/write operations.

• Which software versions are affected by CVE-2021-4319?

  Google Chrome versions prior to 93.0.4577.82 are affected by CVE-2021-4319.

• How can I fix CVE-2021-4319?

  To fix CVE-2021-4319, update your Google Chrome browser to version 93.0.4577.82 or later.