Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2018-14682

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.

Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 8.8, indicating it can be exploited remotely over the network with relatively low complexity though user interaction is required and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 8 products from cabextract, from cabextract_project, from canonical and 5 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2018, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2018-07-28T23:29:00.390

Last Modified

2024-11-21T03:49:34.870

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 8.8 (HIGH)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:P/I:P/A:P

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

8.6

Impact Score

6.4

Weaknesses

Type: Primary
CWE-193

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	cabextract	libmspack	0.0.20060920	Yes
Application	cabextract	libmspack	0.3	Yes
Application	cabextract	libmspack	0.4	Yes
Application	cabextract	libmspack	0.5	Yes
Application	cabextract	libmspack	0.6	Yes
Application	cabextract_project	cabextract	≤ 1.5	Yes
Operating System	canonical	ubuntu_linux	12.04	Yes
Operating System	canonical	ubuntu_linux	14.04	Yes
Operating System	canonical	ubuntu_linux	16.04	Yes
Operating System	canonical	ubuntu_linux	18.04	Yes
Operating System	debian	debian_linux	8.0	Yes
Operating System	debian	debian_linux	9.0	Yes
Application	redhat	ansible_tower	3.3	Yes
Operating System	redhat	enterprise_linux_desktop	7.0	Yes
Operating System	redhat	enterprise_linux_server	7.0	Yes
Operating System	redhat	enterprise_linux_workstation	7.0	Yes

References

http://www.openwall.com/lists/oss-security/2018/07/26/1 Mailing List, Third Party Advisory ([email protected])
http://www.securitytracker.com/id/1041410 Third Party Advisory, VDB Entry ([email protected])
https://access.redhat.com/errata/RHSA-2018:3327 Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2018:3505 Third Party Advisory ([email protected])
https://bugs.debian.org/904800 Issue Tracking, Mailing List, Patch, Third Party Advisory ([email protected])
https://github.com/kyz/libmspack/commit/4fd9ccaa54e1aebde1e4b95fb0163b699fd7bcc8 Patch, Third Party Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2018/08/msg00007.html Mailing List, Third Party Advisory ([email protected])
https://security.gentoo.org/glsa/201903-20 Third Party Advisory ([email protected])
https://usn.ubuntu.com/3728-1/ Third Party Advisory ([email protected])
https://usn.ubuntu.com/3728-2/ Third Party Advisory ([email protected])
https://usn.ubuntu.com/3728-3/ Third Party Advisory ([email protected])
https://usn.ubuntu.com/3789-2/ Third Party Advisory ([email protected])
https://www.debian.org/security/2018/dsa-4260 Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2018/07/26/1 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1041410 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2018:3327 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2018:3505 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugs.debian.org/904800 Issue Tracking, Mailing List, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/kyz/libmspack/commit/4fd9ccaa54e1aebde1e4b95fb0163b699fd7bcc8 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2018/08/msg00007.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/201903-20 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/3728-1/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/3728-2/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/3728-3/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/3789-2/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2018/dsa-4260 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For cabextract's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.