CVE-2018-14682 — Off-by-one Error in Libmspack

CWE-193 — Off-by-one Error17 documents8 sources
Severity
8.8HIGHNVD
EPSS
4.4%
top 10.95%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
9
Libmspack Project LibmspackCabextract Project CabextractCabextract Libmspack+6 more
Timeline
PublishedJul 28
Latest updateOct 1

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.

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitability: 2.8 | Impact: 5.9

Affected Packages7 packages

▶Debianlibmspack_project/libmspack< 0.7-1+3
▶NVDcabextract/libmspack5 versions+4

Also affects: Debian Linux 8.0, 9.0, Ubuntu Linux 12.04, 14.04, 16.04, 18.04

Patches

Patch: bugs.debian.org ↗Patch: github.com ↗Patch: bugs.debian.org ↗

🔴Vulnerability Details

5
GHSA
GHSA-cx83-c67h-h9gr: An issue was discovered in mspack/chmd↗2022-05-13
▶
OSV
libmspack vulnerabilities↗2018-08-01
▶
OSV
clamav vulnerabilities↗2018-08-01
▶
CVEList
CVE-2018-14682: An issue was discovered in mspack/chmd↗2018-07-28
▶
OSV
CVE-2018-14682: An issue was discovered in mspack/chmd↗2018-07-28
▶

📋Vendor Advisories

7
Ubuntu
libmspack vulnerabilities↗2025-10-01
▶
Ubuntu
ClamAV vulnerabilities↗2018-10-16
▶
Ubuntu
ClamAV vulnerabilities↗2018-08-02
▶
Ubuntu
ClamAV vulnerabilities↗2018-08-01
▶
Ubuntu
libmspack vulnerabilities↗2018-08-01
▶

💬Community

4
Bugzilla
CVE-2018-14682 libmspack: off-by-one error in the TOLOWER() macro for CHM decompression [fedora-all]↗2018-08-01
▶
Bugzilla
CVE-2018-14682 libmspack: off-by-one error in the TOLOWER() macro for CHM decompression [epel-all]↗2018-08-01
▶
Bugzilla
CVE-2018-14682 libmspack: off-by-one error in the TOLOWER() macro for CHM decompression↗2018-08-01
▶
Bugzilla
CVE-2018-14343 wireshark: ASN.1 BER and related dissectors crash (wnpa-sec-2018-37)↗2018-07-23
▶
CVE-2018-14682 — Off-by-one Error in Libmspack | cvebase