CVE-2018-14679
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).
Does this matter?
Lower severity and a low EPSS score (3.27%). Track it; it rarely justifies an emergency change on its own.
Description
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).
- CVSS 3.0
- 6.5 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- EPSS
- 3.27% probability · 88th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-193
- Affected
- cabextract/libmspack · cabextract project/cabextract · canonical/ubuntu linux · debian/debian linux · redhat/ansible tower · redhat/enterprise linux desktop · redhat/enterprise linux server · redhat/enterprise linux workstation
- Source
- cve@mitre.org
EPSS 3.3% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.openwall.com/lists/oss-security/2018/07/26/1Mailing List, Third Party Advisory
- http://www.securitytracker.com/id/1041410Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:3327Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3505Third Party Advisory
- https://bugs.debian.org/904802Issue Tracking, Mailing List, Patch, Third Party Advisory
- https://github.com/kyz/libmspack/commit/72e70a921f0f07fee748aec2274b30784e1d312aPatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/08/msg00007.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201903-20Third Party Advisory
- https://usn.ubuntu.com/3728-1/Third Party Advisory
- https://usn.ubuntu.com/3728-2/Third Party Advisory
- https://usn.ubuntu.com/3728-3/Third Party Advisory
- https://usn.ubuntu.com/3789-2/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4260Third Party Advisory
- http://www.openwall.com/lists/oss-security/2018/07/26/1Mailing List, Third Party Advisory
- http://www.securitytracker.com/id/1041410Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:3327Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3505Third Party Advisory
- https://bugs.debian.org/904802Issue Tracking, Mailing List, Patch, Third Party Advisory
- https://github.com/kyz/libmspack/commit/72e70a921f0f07fee748aec2274b30784e1d312aPatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/08/msg00007.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201903-20Third Party Advisory
- https://usn.ubuntu.com/3728-1/Third Party Advisory
- https://usn.ubuntu.com/3728-2/Third Party Advisory
- https://usn.ubuntu.com/3728-3/Third Party Advisory
- https://usn.ubuntu.com/3789-2/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4260Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.