CVE-2017-12374

Name: CVE-2017-12374
Creator: NVD / NIST
Published: 2018-01-26T20:29:00.283+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 5.08%

Last modified Jun 17, 2026

CVE-2017-12374 is a vulnerability of currently unknown severity. 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). EPSS estimates a 5.08% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

5.08%

91.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-416

Affected Software

Vendor	Product	Versions
Debian	Debian Linux	7.0
Clamav	Clamav	<= 0.99.2

References

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/

Timeline

Published: Jan 26, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-12374?

How severe is CVE-2017-12374?

Severity scoring for CVE-2017-12374 is pending analysis. The EPSS model estimates a 5.08% probability of exploitation in the next 30 days.

How do I fix CVE-2017-12374?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-12374?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST