CVE-2017-6419 Information

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.

CVSS Vector

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Reference

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

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8