CVE-2017-12374

The ClamAV AntiVirus software versions 0.99.2 and prior contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a lack of input validation checking mechanisms during certain mail parsing operations (mbox.c operations on bounce messages). If successfully exploited, the ClamAV software could allow a variable pointing to the mail body which could cause a used after being free (use-after-free) instance which may lead to a disruption of services on an affected device to include a denial of service condition.

• CWE-416

• http://blog.clamav.net/2018/01/clamav-0993-has-been-released.htmlRelease Notes, Vendor Advisory
• https://bugzilla.clamav.net/show_bug.cgi?id=11939Exploit, Issue Tracking, Patch, Vendor Advisory
• https://lists.debian.org/debian-lts-announce/2018/01/msg00035.htmlMailing List, Third Party Advisory
• https://usn.ubuntu.com/3550-1/
• https://usn.ubuntu.com/3550-2/
• http://blog.clamav.net/2018/01/clamav-0993-has-been-released.htmlRelease Notes, Vendor Advisory
• https://bugzilla.clamav.net/show_bug.cgi?id=11939Exploit, Issue Tracking, Patch, Vendor Advisory
• https://lists.debian.org/debian-lts-announce/2018/01/msg00035.htmlMailing List, Third Party Advisory
• https://usn.ubuntu.com/3550-1/
• https://usn.ubuntu.com/3550-2/

Published

Jan 26, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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