What’s Vulnerable › Vulnerabilities

CVE-2018-14682

• Severity: high (CVSS 8.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-07-28 · updated 2026-06-17
• Weakness: CWE-193

Description

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.

Affected products

• Cabextract Libmspack: 0.0.20060920-alpha, 0.3-alpha, 0.4-alpha, 0.5-alpha, 0.6-alpha
• Cabextract Project Cabextract: through 1.5
• Canonical Ubuntu Linux: 12.04, 14.04, 16.04, 18.04
• Debian Linux: 8.0, 9.0
• Tower: 3.3
• RedHat Enterprise Linux Desktop: 7.0
• RedHat Enterprise Linux Server: 7.0
• RedHat Enterprise Linux Workstation: 7.0

References

• http://www.openwall.com/lists/oss-security/2018/07/26/1
• http://www.securitytracker.com/id/1041410
• https://access.redhat.com/errata/RHSA-2018:3327
• https://access.redhat.com/errata/RHSA-2018:3505
• https://bugs.debian.org/904800
• https://github.com/kyz/libmspack/commit/4fd9ccaa54e1aebde1e4b95fb0163b699fd7bcc8
• https://lists.debian.org/debian-lts-announce/2018/08/msg00007.html
• https://security.gentoo.org/glsa/201903-20
• https://usn.ubuntu.com/3728-1/
• https://usn.ubuntu.com/3728-2/
• https://usn.ubuntu.com/3728-3/
• https://usn.ubuntu.com/3789-2/

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