CWE
59 362
Advisory Published
CVE Published
Updated

CVE-2021-20197: Race Condition

First published: Thu Jan 07 2021(Updated: )

There is an open race window when writing output in the following utilities in GNU binutils version 2.35 and earlier:ar, objcopy, strip, ranlib. When these utilities are run as a privileged user (presumably as part of a script updating binaries across different users), an unprivileged user can trick these utilities into getting ownership of arbitrary files through a symlink.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
GNU Binutils<=2.35
Redhat Enterprise Linux=8.0
Netapp Cloud Backup
NetApp ONTAP Select Deploy administration utility
IBM Cloud Pak for Business Automation
Broadcom Brocade Fabric Operating System Firmware

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Frequently Asked Questions

  • What is CVE-2021-20197?

    CVE-2021-20197 is a vulnerability in GNU binutils version 2.35 and earlier, which allows an unprivileged user to trick a privileged user into overwriting arbitrary files.

  • How severe is CVE-2021-20197?

    CVE-2021-20197 has a severity rating of 6.3 (medium).

  • Which utilities in GNU binutils are affected by CVE-2021-20197?

    The following utilities in GNU binutils version 2.35 and earlier are affected: ar, objcopy, strip, ranlib.

  • Which operating systems are affected by CVE-2021-20197?

    The affected operating systems include Redhat Enterprise Linux 8.0, Netapp Cloud Backup, NetApp ONTAP Select Deploy administration utility, Netapp Solidfire & Hci Management Node, and Broadcom Brocade Fabric Operating System Firmware.

  • Are there any references for CVE-2021-20197?

    Yes, you can find more information about CVE-2021-20197 at the following references: [Link 1], [Link 2], [Link 3].

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2024 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203