Vulnerability in Cabextract Libmspack
CVE-2018-14679
An issue was discovered in mspack/chmd.c in libmspack before 0.7alpha. There is an off-by-one error in the CHM PMGI/PMGL chunk number validity checks, which could lead to denial of service (uninitialized data dereference and application crash).
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.033 (88.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 88.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.033 · newest: 0.033 · change: 0.000
Affected products
- Cabextract Libmspack — versions 0.0.20060920, 0.3, 0.4
- Cabextract Project
- Canonical Ubuntu Linux — versions 12.04, 14.04, 16.04
- Debian Linux — versions 8.0, 9.0
- Red Hat Ansible Tower — versions 3.3
- Red Hat Enterprise Linux Desktop — versions 7.0
- Red Hat Enterprise Linux Server — versions 7.0
- Red Hat Enterprise Linux Workstation — versions 7.0
Weakness classification (CWE)
References
- usn.ubuntu.com/3728-3/ (vendor-advisory, Third Party Advisory)
- www.debian.org/security/2018/dsa-4260 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2018/08/msg00007.html (mailing-list, Mailing List, Third Party Advisory)
- github.com/kyz/libmspack/commit/72e70a921f0f07fee748aec2274b30784e1d312a (Patch, Third Party Advisory)
- bugs.debian.org/904802 (Patch, Mailing List, Third Party Advisory, Issue Tracking)
- www.openwall.com/lists/oss-security/2018/07/26/1 (Mailing List, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:3505 (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3789-2/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3728-2/ (vendor-advisory, Third Party Advisory)
- www.securitytracker.com/id/1041410 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2018-14679?
- CVE-2018-14679 is a medium-severity vulnerability in Cabextract Libmspack, classified under Off-by-one Error. CVSS score: 6.5/10. Published 2018-07-28.
- How severe is CVE-2018-14679?
- Medium severity. CVSS v3 base score is 6.5 out of 10.