Buffer overflow in Kyzer Libmspack
CVE-2019-1010305
libmspack 0.9.1alpha is affected by: Buffer Overflow. The impact is: Information Disclosure. The component is: function chmd_read_headers() in libmspack(file libmspack/mspack/chmd.c). The attack vector is: the victim must open a specially crafted chm file. The fixed version is: after commit 2f084136cfe0d05e5bf5703f3e83c6d955234b4d.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.015 (73.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 73.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000
Affected products
- Kyzer Libmspack — versions 0.9.1
- Libmspack — versions 0.9.1alpha [fixed: after commit 2f084136cfe0d05e5bf5703f3e83c6d955234b4d]
- Canonical Ubuntu Linux — versions 12.04, 14.04, 16.04
- Debian Linux — versions 8.0, 9.0
- Fedoraproject Fedora — versions 29, 30
Weakness classification (CWE)
References
- github.com/kyz/libmspack/issues/27 (Exploit, Third Party Advisory, Issue Tracking)
- github.com/kyz/libmspack/commit/2f084136cfe0d05e5bf5703f3e83c6d955234b4d (Patch, Third Party Advisory)
- usn.ubuntu.com/4066-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4066-2/ (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.debian.org/debian-lts-announce/2019/08/msg00028.html (mailing-list, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2021/10/msg00033.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-1010305?
- CVE-2019-1010305 is a medium-severity vulnerability in Kyzer Libmspack, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.5/10. Published 2019-07-15.
- How severe is CVE-2019-1010305?
- Medium severity. CVSS v3 base score is 5.5 out of 10.