high
7.8
CWE
59
Advisory Published
CVE Published
Updated

CVE-2021-31566

First published: Wed Nov 17 2021(Updated: )

An improper link resolution flaw can occur while extracting an archive leading to changing modes, times, access control lists, and flags of a file outside of the archive. An attacker may provide a malicious archive to a victim user, who would trigger this flaw when trying to extract the archive. A local attacker may use this flaw to gain more privileges in a system.

Credit: secalert@redhat.com secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
Libarchive Libarchive<3.5.2
Fedoraproject Fedora=35
Redhat Enterprise Linux=8.0
Redhat Enterprise Linux Eus=8.6
Redhat Enterprise Linux For Ibm Z Systems=8.0
Redhat Enterprise Linux For Ibm Z Systems Eus=8.6
Redhat Enterprise Linux For Power Little Endian=8.0
Redhat Enterprise Linux For Power Little Endian Eus=8.6
Redhat Enterprise Linux Server Aus=8.6
Redhat Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions=8.6
Redhat Enterprise Linux Server Tus=8.6
Redhat Codeready Linux Builder
Redhat Enterprise Linux=8.0
Redhat Enterprise Linux Eus=8.6
Redhat Enterprise Linux For Ibm Z Systems=8.0
Redhat Enterprise Linux For Ibm Z Systems Eus=8.6
Redhat Enterprise Linux For Power Little Endian=8.0
Redhat Enterprise Linux For Power Little Endian Eus=8.6
Debian Debian Linux=10.0
All of
Redhat Codeready Linux Builder
Any of
Redhat Enterprise Linux=8.0
Redhat Enterprise Linux Eus=8.6
Redhat Enterprise Linux For Ibm Z Systems=8.0
Redhat Enterprise Linux For Ibm Z Systems Eus=8.6
Redhat Enterprise Linux For Power Little Endian=8.0
Redhat Enterprise Linux For Power Little Endian Eus=8.6
Splunk Universal Forwarder>=8.2.0<8.2.12
Splunk Universal Forwarder>=9.0.0<9.0.6
Splunk Universal Forwarder=9.1.0
redhat/libarchive<3.5.2
3.5.2
F5 BIG-IP>=17.1.0<=17.1.1
F5 BIG-IP>=16.1.0<=16.1.5
F5 BIG-IP>=15.1.0<=15.1.10
F5 BIG-IQ Centralized Management>=8.2.0<=8.3.0
F5 Traffix SDC=5.2.0

Remedy

https://bugzilla.redhat.com/show_bug.cgi?id=2024237

Remedy

https://github.com/libarchive/libarchive/commit/b41daecb5ccb4c8e3b2c53fd6147109fc12c3043

Remedy

https://github.com/libarchive/libarchive/issues/1566

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.

Read MoreStart Free Trial

Reference Links

Frequently Asked Questions

  • What is CVE-2021-31566?

    CVE-2021-31566 is a vulnerability in the Libarchive library that allows an attacker to change the modes, times, access control lists, and flags of a file outside of an archive when it is extracted.

  • How does CVE-2021-31566 occur?

    CVE-2021-31566 occurs due to an improper link resolution flaw in the Libarchive library.

  • What is the severity of CVE-2021-31566?

    CVE-2021-31566 has a severity rating of high, with a CVSS score of 7.8.

  • Which software is affected by CVE-2021-31566?

    The Libarchive library version up to exclusive 3.5.2, Fedora 35, and various versions of Redhat Enterprise Linux are affected by CVE-2021-31566.

  • How can I fix CVE-2021-31566?

    To fix CVE-2021-31566, update the Libarchive library to version 3.5.2 or later.

Company

Resources

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