CVE-2017-6419: Buffer Overflow
First published: Mon Aug 07 2017(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Libmspack | =0.5-alpha | |
| ClamAV | =0.99.2 |
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Reference Links
- http://www.debian.org/security/2017/dsa-3946
- https://bugzilla.clamav.net/show_bug.cgi?id=11701
- https://github.com/varsleak/varsleak-vul/blob/master/clamav-vul/heap-overflow/clamav_chm_crash.md
- https://github.com/vrtadmin/clamav-devel/commit/a83773682e856ad6529ba6db8d1792e6d515d7f1
- https://lists.debian.org/debian-lts-announce/2018/02/msg00014.html
- https://security.gentoo.org/glsa/201804-16
Frequently Asked Questions
What is the severity of CVE-2017-6419?
CVE-2017-6419 is considered a medium severity vulnerability due to its potential for denial of service and crashes.
How do I fix CVE-2017-6419?
To fix CVE-2017-6419, update to a version of ClamAV or libmspack that has patched this vulnerability, specifically ClamAV versions later than 0.99.2.
What impact does CVE-2017-6419 have on systems?
CVE-2017-6419 can lead to a heap-based buffer overflow and cause the application to crash, potentially resulting in a denial of service.
Is CVE-2017-6419 exploitable remotely?
Yes, CVE-2017-6419 can be exploited remotely through specially crafted CHM files.
Which software is affected by CVE-2017-6419?
CVE-2017-6419 affects libmspack version 0.5-alpha and ClamAV version 0.99.2.
- agent/references
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/remedy
- agent/last-modified-date
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- agent/softwarecombine
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- agent/software-canonical-lookup-request
- vendor/libmspack project
- canonical/suse libmspack
- version/suse libmspack/0.5-alpha
- vendor/clamav
- canonical/clamav
- version/clamav/0.99.2