CVE-2017-6419

Name: CVE-2017-6419
Creator: NVD / NIST
Published: 2017-08-07T03:29:00.277+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.98%

Last modified Jun 17, 2026

CVE-2017-6419 is a vulnerability of currently unknown severity. mspack/lzxd.c in libmspack 0.5alpha, as used in ClamAV 0.99.2, allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted CHM file.. EPSS estimates a 1.98% chance of exploitation in the next 30 days.

Description

mspack/lzxd.c in libmspack 0.5alpha, as used in ClamAV 0.99.2, allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted CHM file.

Metrics

EPSS Probability

1.98%

78.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions	Update
Libmspack Project	Libmspack	0.5	Alpha

References

http://www.debian.org/security/2017/dsa-3946
https://bugzilla.clamav.net/show_bug.cgi?id=11701Issue Tracking
https://github.com/varsleak/varsleak-vul/blob/master/clamav-vul/heap-overflow/clamav_chm_crash.mdThird Party Advisory
https://github.com/vrtadmin/clamav-devel/commit/a83773682e856ad6529ba6db8d1792e6d515d7f1Issue Tracking, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/02/msg00014.html
https://security.gentoo.org/glsa/201804-16
http://www.debian.org/security/2017/dsa-3946
https://bugzilla.clamav.net/show_bug.cgi?id=11701Issue Tracking
https://github.com/varsleak/varsleak-vul/blob/master/clamav-vul/heap-overflow/clamav_chm_crash.mdThird Party Advisory
https://github.com/vrtadmin/clamav-devel/commit/a83773682e856ad6529ba6db8d1792e6d515d7f1Issue Tracking, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/02/msg00014.html
https://security.gentoo.org/glsa/201804-16

Timeline

Published: Aug 7, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-6419?

How severe is CVE-2017-6419?

Severity scoring for CVE-2017-6419 is pending analysis. The EPSS model estimates a 1.98% probability of exploitation in the next 30 days.

How do I fix CVE-2017-6419?

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-2017-6419?

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

Scan your code now

Source: NVD / NIST