Important: clamav

Issue Overview:

A vulnerability in the filesystem image parser for Hierarchical File System Plus (HFS+) of ClamAV could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.

This vulnerability is due to an incorrect check for completion when a file is decompressed, which may result in a loop condition that could cause the affected software to stop responding. An attacker could exploit this vulnerability by submitting a crafted HFS+ filesystem image to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to cause the ClamAV scanning process to stop responding, resulting in a DoS condition on the affected software and consuming available system resources.

For a description of this vulnerability, see the ClamAV blog . (CVE-2023-20197)

Affected Packages:

clamav

Issue Correction:
Run yum update clamav to update your system.

New Packages:

i686:  
    clamav-db-0.103.9-1.55.amzn1.i686  
    clamav-debuginfo-0.103.9-1.55.amzn1.i686  
    clamav-milter-0.103.9-1.55.amzn1.i686  
    clamav-update-0.103.9-1.55.amzn1.i686  
    clamav-lib-0.103.9-1.55.amzn1.i686  
    clamav-0.103.9-1.55.amzn1.i686  
    clamav-devel-0.103.9-1.55.amzn1.i686  
    clamd-0.103.9-1.55.amzn1.i686  
  
noarch:  
    clamav-filesystem-0.103.9-1.55.amzn1.noarch  
    clamav-data-0.103.9-1.55.amzn1.noarch  
  
src:  
    clamav-0.103.9-1.55.amzn1.src  
  
x86_64:  
    clamd-0.103.9-1.55.amzn1.x86_64  
    clamav-0.103.9-1.55.amzn1.x86_64  
    clamav-db-0.103.9-1.55.amzn1.x86_64  
    clamav-milter-0.103.9-1.55.amzn1.x86_64  
    clamav-debuginfo-0.103.9-1.55.amzn1.x86_64  
    clamav-lib-0.103.9-1.55.amzn1.x86_64  
    clamav-devel-0.103.9-1.55.amzn1.x86_64  
    clamav-update-0.103.9-1.55.amzn1.x86_64  

Additional References

Red Hat: CVE-2023-20197

Mitre: CVE-2023-20197