A vulnerability in the OLE2 file format parser 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 end-of-string values during scanning, which may result in a heap buffer over-read. An attacker could exploit this vulnerability by submitting a crafted file containing OLE2 content to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to cause the ClamAV scanning process to terminate, resulting in a DoS condition on the affected software and consuming available system resources.

 For a description of this vulnerability, see the ClamAV blog .

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-20290
https://www.cve.org/CVERecord?id=CVE-2024-20290
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-hDffu6t
https://bugzilla.redhat.com/show_bug.cgi?id=2263262

Patch:
https://github.com/Cisco-Talos/clamav/commit/de27d4fae29314636cc570da70ddf9f96eb119be
https://github.com/Cisco-Talos/clamav/commit/4ec53d5f8fdae77c1161484c201c664d94cb2e8e