CVE-2021-30625: Use after free in Selection API

Reference Links

• https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop.html (Advisory)
• https://crbug.com/1237533
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4DDW7HAHTS3SDVXBQUY4SURELO5D4X7R/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PM7MOYYHJSWLIFZ4TPJTD7MSA3HSSLV2/
• https://www.talosintelligence.com/vulnerability_reports/TALOS-2021-1352
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4DDW7HAHTS3SDVXBQUY4SURELO5D4X7R/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PM7MOYYHJSWLIFZ4TPJTD7MSA3HSSLV2/

Parent vulnerabilities

(Appears in the following advisories)

• 2705646769654617144

Peer vulnerabilities

(Found alongside the following vulnerabilities)

• CVE-2021-30626
• CVE-2021-30627
• CVE-2021-30628
• CVE-2021-30629
• CVE-2021-30630
• CVE-2021-30632
• CVE-2021-30633
• CVE-2021-4319

Frequently Asked Questions

• What is the severity of CVE-2021-30625?

  CVE-2021-30625 has been classified as a high-severity vulnerability due to its potential to allow remote code execution.

• How do I fix CVE-2021-30625?

  To fix CVE-2021-30625, update Google Chrome to version 93.0.4577.82 or later.

• What software is affected by CVE-2021-30625?

  CVE-2021-30625 affects Google Chrome versions prior to 93.0.4577.82, and Fedora 33 and 35.

• Can CVE-2021-30625 be exploited remotely?

  Yes, CVE-2021-30625 can potentially be exploited by remote attackers through a crafted HTML page.

• What is a use after free vulnerability in the context of CVE-2021-30625?

  A use after free vulnerability, as seen in CVE-2021-30625, occurs when a program attempts to use memory after it has been freed, leading to heap corruption.