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TI-2018-10540 Aliases CVE-2018-14682GHSA-cx83-c67h-h9gr

An issue was discovered in mspack/chmd.c in libmspack before 0.7alpha.

Priority MEDIUM 44CWE-193Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-193 and the CVSS impact.

Summary

An issue was discovered in mspack/chmd.c in libmspack before 0.7alpha. There is an off-by-one error in the TOLOWER() macro for CHM decompression.

Why it matters now

EPSS 0.0361 89th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 16

CPEVersionsRoleVendor
cpe:2.3:a:cabextract:libmspack:0.0.20060920:alpha:*:*:*:*:*:*0.0.20060920 alphaVulnerableCabextract
cpe:2.3:a:cabextract:libmspack:0.3:alpha:*:*:*:*:*:*0.3 alphaVulnerableCabextract
cpe:2.3:a:cabextract:libmspack:0.4:alpha:*:*:*:*:*:*0.4 alphaVulnerableCabextract
cpe:2.3:a:cabextract:libmspack:0.5:alpha:*:*:*:*:*:*0.5 alphaVulnerableCabextract
cpe:2.3:a:cabextract:libmspack:0.6:alpha:*:*:*:*:*:*0.6 alphaVulnerableCabextract
cpe:2.3:a:cabextract_project:cabextract:*:*:*:*:*:*:*:*up to 1.5VulnerableCabextract Project
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*12.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*14.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*16.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*18.04VulnerableCanonical
  • cpe:2.3:a:cabextract:libmspack:0.0.20060920:alpha:*:*:*:*:*:* Versions 0.0.20060920 alpha Vulnerable ·Cabextract
  • cpe:2.3:a:cabextract:libmspack:0.3:alpha:*:*:*:*:*:* Versions 0.3 alpha Vulnerable ·Cabextract
  • cpe:2.3:a:cabextract:libmspack:0.4:alpha:*:*:*:*:*:* Versions 0.4 alpha Vulnerable ·Cabextract
  • cpe:2.3:a:cabextract:libmspack:0.5:alpha:*:*:*:*:*:* Versions 0.5 alpha Vulnerable ·Cabextract
  • cpe:2.3:a:cabextract:libmspack:0.6:alpha:*:*:*:*:*:* Versions 0.6 alpha Vulnerable ·Cabextract
  • cpe:2.3:a:cabextract_project:cabextract:*:*:*:*:*:*:*:* Versions up to 1.5 Vulnerable ·Cabextract Project
  • cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:* Versions 12.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* Versions 14.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* Versions 16.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* Versions 18.04 Vulnerable ·Canonical
Show 6 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
cpe:2.3:a:redhat:ansible_tower:3.3:*:*:*:*:*:*:*3.3VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
  • cpe:2.3:a:redhat:ansible_tower:3.3:*:*:*:*:*:*:* Versions 3.3 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat

Remediation

Red Hat 1 advisory

  • RHSA-2018:3327 Released 2018-10-30 · Red Hat rating Low
    libmspack security update
    • Red Hat Enterprise Linux Client (v. 7) libmspack-0.5-0.6.alpha.el7
    • Red Hat Enterprise Linux Client Optional (v. 7) libmspack-devel-0.5-0.6.alpha.el7
    • Red Hat Enterprise Linux ComputeNode (v. 7) libmspack-0.5-0.6.alpha.el7
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) libmspack-devel-0.5-0.6.alpha.el7
    • Red Hat Enterprise Linux Server (v. 7) libmspack-0.5-0.6.alpha.el7
    • Red Hat Enterprise Linux Server Optional (v. 7) libmspack-0.5-0.6.alpha.el7, libmspack-devel-0.5-0.6.alpha.el7
    • Red Hat Enterprise Linux Workstation (v. 7) libmspack-0.5-0.6.alpha.el7
    • Red Hat Enterprise Linux Workstation Optional (v. 7) libmspack-devel-0.5-0.6.alpha.el7
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) libmspack-0.5-0.6.alpha.el7, libmspack-devel-0.5-0.6.alpha.el7

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2018:3327
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2018:3327
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2018:3327
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2018:3327
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2018:3327
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2018:3327
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2018:3327
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2018:3327
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7)Fixed RHSA-2018:3327
Not affected: 1 product
  • Red Hat Enterprise Linux 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-14682
  2. 2026-10-03 Alias added: GHSA-cx83-c67h-h9gr

References

Patch 2

Advisory 10

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences