VulnerabilityModified
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.
HIGH 7.8EPSS 1.98%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.98%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.0
- 7.8 HIGHCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 1.98% probability · 79th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- libmspack project/libmspack
- Source
- cve@mitre.org
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.