CVE-2021-30545: Use after free in Extensions

Reference Links

• https://chromereleases.googleblog.com/2021/06/stable-channel-update-for-desktop.html (Advisory)
• https://crbug.com/1201031
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ETMZL6IHCTCTREEL434BQ4THQ7EOHJ43/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PAT6EOXVQFE6JFMFQF4IKAOUQSHMHL54/
• https://security.gentoo.org/glsa/202107-06
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAT6EOXVQFE6JFMFQF4IKAOUQSHMHL54/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ETMZL6IHCTCTREEL434BQ4THQ7EOHJ43/

Parent vulnerabilities

(Appears in the following advisories)

• 6244807684233791030

Peer vulnerabilities

(Found alongside the following vulnerabilities)

• CVE-2021-30544
• CVE-2021-30546
• CVE-2021-30547
• CVE-2021-30548
• CVE-2021-30549
• CVE-2021-30550
• CVE-2021-30551
• CVE-2021-30552
• CVE-2021-30553

Frequently Asked Questions

• What is the severity of CVE-2021-30545?

  CVE-2021-30545 has a severity rating that suggests it poses a significant security risk due to potential heap corruption.

• How do I fix CVE-2021-30545?

  To fix CVE-2021-30545, update Google Chrome to version 91.0.4472.101 or later.

• What types of systems are affected by CVE-2021-30545?

  CVE-2021-30545 affects Google Chrome versions prior to 91.0.4472.101 as well as Fedora 33 and 34.

• Can CVE-2021-30545 be exploited remotely?

  Yes, CVE-2021-30545 can be exploited remotely by an attacker through a crafted HTML page.

• What capabilities does an attacker gain from CVE-2021-30545?

  An attacker may gain the ability to execute arbitrary code or cause a denial of service through heap corruption.