CVE-2021-4068: Insufficient validation of untrusted input in new tab page

Reference Links

• https://security-tracker.debian.org/tracker/CVE-2021-4068
• https://chromereleases.googleblog.com/2021/12/stable-channel-update-for-desktop.html (Advisory)
• https://crbug.com/1265197
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3W46HRT2UVHWSLZB6JZHQF6JNQWKV744/
• https://security.gentoo.org/glsa/202208-25
• https://www.debian.org/security/2022/dsa-5046
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3W46HRT2UVHWSLZB6JZHQF6JNQWKV744/

Parent vulnerabilities

(Appears in the following advisories)

• 7014601772789068319

Peer vulnerabilities

(Found alongside the following vulnerabilities)

• CVE-2021-4052
• CVE-2021-4053
• CVE-2021-4079
• CVE-2021-4054
• CVE-2021-4317
• CVE-2021-4078
• CVE-2021-4055
• CVE-2021-4056
• CVE-2021-4057
• CVE-2021-4058
• CVE-2021-4059
• CVE-2021-4061
• CVE-2021-4062
• CVE-2021-4063
• CVE-2021-4064
• CVE-2021-4065
• CVE-2021-4066
• CVE-2021-4067

Frequently Asked Questions

• What is CVE-2021-4068?

  CVE-2021-4068 is a vulnerability in Google Chrome where there is insufficient data validation in the new tab page.

• How does CVE-2021-4068 impact users?

  CVE-2021-4068 allows a remote attacker to leak cross-origin data through a crafted HTML page.

• What is the severity of CVE-2021-4068?

  The severity of CVE-2021-4068 is medium, with a severity value of 6.5.

• Which software versions are affected by CVE-2021-4068?

  Google Chrome versions prior to 96.0.4664.93, Fedora 34, Debian Linux 10.0 and 11.0, and Chromium 90.0.4430.212-1~deb10u1 are affected.

• How can I fix CVE-2021-4068?

  To fix CVE-2021-4068, update Google Chrome to version 96.0.4664.93 or later, Fedora to the patched version, Debian Linux to the patched version, or Chromium to version 90.0.4430.212-1~deb11u1 or later.