Bug 2496095 (CVE-2026-20244) - CVE-2026-20244 clamav: ClamAV: Denial of Service via crafted DMG file
Summary: CVE-2026-20244 clamav: ClamAV: Denial of Service via crafted DMG file
Keywords:
Status: NEW
Alias: CVE-2026-20244
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2496842 2496843
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-01 18:02 UTC by OSIDB Bzimport
Modified: 2026-07-03 13:17 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


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Description OSIDB Bzimport 2026-07-01 18:02:14 UTC
A vulnerability in the DMG file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition, or possibly other expanded impacts, resulting from memory corruption on an affected device.

This vulnerability is due to improper boundary checks for content in DMG files during scanning, which may result in an integer overflow on 32-bit platforms only. An attacker could exploit this vulnerability by submitting a crafted file that contains DMG 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.


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