Vulnerability Details : CVE-2017-6419
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.
Vulnerability category: OverflowDenial of service
Exploit prediction scoring system (EPSS) score for CVE-2017-6419
Probability of exploitation activity in the next 30 days: 0.64%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 77 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2017-6419
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|
|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
nvd@nist.gov |
|
7.8
|
HIGH | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
nvd@nist.gov |
CWE ids for CVE-2017-6419
-
The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-6419
-
https://github.com/varsleak/varsleak-vul/blob/master/clamav-vul/heap-overflow/clamav_chm_crash.md
varsleak-vul/clamav_chm_crash.md at master · varsleak/varsleak-vul · GitHubThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2018/02/msg00014.html
[SECURITY] [DLA 1279-1] clamav security update
-
https://github.com/vrtadmin/clamav-devel/commit/a83773682e856ad6529ba6db8d1792e6d515d7f1
fixing potential OOB window write when unpacking chm files · Cisco-Talos/clamav-devel@a837736 · GitHubIssue Tracking;Patch;Third Party Advisory
-
http://www.debian.org/security/2017/dsa-3946
Debian -- Security Information -- DSA-3946-1 libmspack
-
https://security.gentoo.org/glsa/201804-16
ClamAV: Multiple vulnerabilities (GLSA 201804-16) — Gentoo security
-
https://bugzilla.clamav.net/show_bug.cgi?id=11701
Bug 11701 – an out-of-range write when clamscan prase chmIssue Tracking
Products affected by CVE-2017-6419
- cpe:2.3:a:libmspack_project:libmspack:0.5:alpha:*:*:*:*:*:*