medium
5.5
CWE
252
Advisory Published
CVE Published
Updated

CVE-2021-21217: Uninitialized Use in PDFium

First published: Thu Jan 14 2021(Updated: )

Uninitialized data in PDFium in Google Chrome prior to 90.0.4430.72 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted PDF file.

Credit: chrome-cve-admin@google.com Zhou Aiting @zhouat1 Qihoo 360 Vulcan Team

Affected SoftwareAffected VersionHow to fix
debian/chromium
90.0.4430.212-1~deb10u1
116.0.5845.180-1~deb11u1
118.0.5993.70-1~deb11u1
116.0.5845.180-1~deb12u1
118.0.5993.70-1~deb12u1
118.0.5993.70-1
Google Chrome (Trace Event)<90.0.4430.72
90.0.4430.72
Google Chrome (Trace Event)<90.0.4430.72
Debian=10.0
Fedora=32
Fedora=33
Fedora=34

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of CVE-2021-21217?

    CVE-2021-21217 is classified as a high severity vulnerability due to its potential exploitation by remote attackers.

  • How do I fix CVE-2021-21217?

    To fix CVE-2021-21217, update Google Chrome or Chromium to version 90.0.4430.72 or later.

  • What type of vulnerability is CVE-2021-21217?

    CVE-2021-21217 is an information disclosure vulnerability affecting PDFium in Google Chrome.

  • Can I be attacked by CVE-2021-21217 if I use an affected version of Chrome?

    Yes, using an affected version of Chrome increases the risk of a successful attack leveraging CVE-2021-21217.

  • What systems are affected by CVE-2021-21217?

    CVE-2021-21217 affects Google Chrome versions prior to 90.0.4430.72 and several versions of Chromium on Debian and Fedora.

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