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Fedora 40: FEDORA-2024-e8f7a74693 Critical: Clamav DoS Risk Mitigated

fedora
Calendar Grey September 14, 2024
Dist Fedora Esm H88
Stay informed about the newest security patches for ClamAV on Fedora 40, focusing on urgent vulnerabilities and improving overall system defense.
Update to 1.0.7 CVE-2024-20506: Changed the logging module to disable following symlinks on Linux and Unix systems so as to prevent an attacker with existing access to the 'clamd' ...

Summary

Clam AntiVirus is an anti-virus toolkit for UNIX. The main purpose of this

software is the integration with mail servers (attachment scanning). The

package provides a flexible and scalable multi-threaded daemon, a command

line scanner, and a tool for automatic updating via Internet. The programs

are based on a shared library distributed with the Clam AntiVirus package,

which you can use with your own software. The virus database is based on

the virus database from OpenAntiVirus, but contains additional signatures

(including signatures for popular polymorphic viruses, too) and is KEPT UP

TO DATE.

Update Information:

Update to 1.0.7 CVE-2024-20506: Changed the logging module to disable following symlinks on Linux and Unix systems so as to prevent an attacker with existing access to the 'clamd' or 'freshclam' services from using a symlink to corrupt system files. CVE-2024-20505: Fixed a possible out-of-bounds read bug in the PDF file parser that could cause a denial-of-service (DoS) condition.

Topics%20covered

Topics Covered

security advisory fedora software update DoS clamav out-of-bounds read symlink protection

Change Log

* Thu Sep 5 2024 Yaakov Selkowitz - 1.0.7-1 - Update to 1.0.7 * Wed Jul 17 2024 Fedora Release Engineering - 1.0.6-2 - Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild

References


[ 1 ] Bug #2310067 - CVE-2024-20506 clamav: ClamD process writes to log file while privileged without checking if its been replaced with a symlink [fedora-40] https://bugzilla.redhat.com/show_bug.cgi?id=2310067 [ 2 ] Bug #2310073 - CVE-2024-20505 clamav: out-of-bounds read bug in the PDF file parser [fedora-40] https://bugzilla.redhat.com/show_bug.cgi?id=2310073

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2024-e8f7a74693' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

Severity
critical
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Name: clamav
Product: Fedora 40
Version: 1.0.7
Release: 1.fc40
URL: https://www.clamav.net/
Summary: End-user tools for the Clam Antivirus scanner

Topics%20covered

Topics Covered

security advisory fedora software update DoS clamav out-of-bounds read symlink protection

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