CVE-2021-30532: Insufficient policy enforcement in Content Security Policy

Reference Links

• https://chromereleases.googleblog.com/2021/05/stable-channel-update-for-desktop_25.html (Advisory)
• https://crbug.com/1117687
• 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)

• 7170632646642454608

Peer vulnerabilities

(Found alongside the following vulnerabilities)

• CVE-2021-30521
• CVE-2021-30522
• CVE-2021-30523
• CVE-2021-30524
• CVE-2021-30525
• CVE-2021-30526
• CVE-2021-30527
• CVE-2021-30528
• CVE-2021-4322
• CVE-2021-30529
• CVE-2021-30530
• CVE-2021-30531
• CVE-2021-30533
• CVE-2021-30534
• CVE-2021-30535
• CVE-2021-30542
• CVE-2021-30543
• CVE-2021-30558
• CVE-2021-30536
• CVE-2021-30537
• CVE-2021-30538
• CVE-2021-30539
• CVE-2021-30540
• CVE-2021-4321

Frequently Asked Questions

• What is CVE-2021-30532?

  CVE-2021-30532 is a vulnerability in Google Chrome that allows a remote attacker to bypass content security policy.

• How severe is CVE-2021-30532?

  CVE-2021-30532 has a severity rating of 4.3, which is considered medium.

• Which software versions are affected by CVE-2021-30532?

  Google Chrome versions prior to 91.0.4472.77 and Fedora versions 33 and 34 are affected by CVE-2021-30532.

• How can the content security policy bypass be exploited?

  The content security policy bypass in CVE-2021-30532 can be exploited by a remote attacker through a crafted HTML page.

• How can I fix CVE-2021-30532?

  To fix CVE-2021-30532, update Google Chrome to version 91.0.4472.77 or later, or update to a non-affected version of Fedora if using Fedora.