CVE-2018-14682

libmspack: off-by-one error in the TOLOWER() macro for CHM decompression

Severity Score

8.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Se ha descubierto un problema en mspack/chmd.c en libmspack en versiones anteriores a la 0.7alpha. Hay un error por un paso en la macro TOLOWER() para la descompresión CHM.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-07-28 CVE Reserved
2018-07-28 CVE Published
2024-02-21 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-193: Off-by-one Error

CAPEC

References (15)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2018/07/26/1	Mailing List
http://www.securitytracker.com/id/1041410	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/08/msg00007.html	Mailing List

URL	Date	SRC

URL	Date	SRC
https://bugs.debian.org/904800	2021-04-26
https://github.com/kyz/libmspack/commit/4fd9ccaa54e1aebde1e4b95fb0163b699fd7bcc8	2021-04-26

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2018:3327	2021-04-26
https://access.redhat.com/errata/RHSA-2018:3505	2021-04-26
https://security.gentoo.org/glsa/201903-20	2021-04-26
https://usn.ubuntu.com/3728-1	2021-04-26
https://usn.ubuntu.com/3728-2	2021-04-26
https://usn.ubuntu.com/3728-3	2021-04-26
https://usn.ubuntu.com/3789-2	2021-04-26
https://www.debian.org/security/2018/dsa-4260	2021-04-26
https://access.redhat.com/security/cve/CVE-2018-14682	2018-10-30
https://bugzilla.redhat.com/show_bug.cgi?id=1610941	2018-10-30

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cabextract Search vendor "Cabextract"		Libmspack Search vendor "Cabextract" for product "Libmspack"				0.0.20060920 Search vendor "Cabextract" for product "Libmspack" and version "0.0.20060920"		alpha		Affected
Cabextract Search vendor "Cabextract"		Libmspack Search vendor "Cabextract" for product "Libmspack"				0.3 Search vendor "Cabextract" for product "Libmspack" and version "0.3"		alpha		Affected
Cabextract Search vendor "Cabextract"		Libmspack Search vendor "Cabextract" for product "Libmspack"				0.4 Search vendor "Cabextract" for product "Libmspack" and version "0.4"		alpha		Affected
Cabextract Search vendor "Cabextract"		Libmspack Search vendor "Cabextract" for product "Libmspack"				0.5 Search vendor "Cabextract" for product "Libmspack" and version "0.5"		alpha		Affected
Cabextract Search vendor "Cabextract"		Libmspack Search vendor "Cabextract" for product "Libmspack"				0.6 Search vendor "Cabextract" for product "Libmspack" and version "0.6"		alpha		Affected
Cabextract Project Search vendor "Cabextract Project"		Cabextract Search vendor "Cabextract Project" for product "Cabextract"				<= 1.5 Search vendor "Cabextract Project" for product "Cabextract" and version " <= 1.5"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04"		esm		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04"		lts		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected
Redhat Search vendor "Redhat"		Ansible Tower Search vendor "Redhat" for product "Ansible Tower"				3.3 Search vendor "Redhat" for product "Ansible Tower" and version "3.3"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Desktop Search vendor "Redhat" for product "Enterprise Linux Desktop"				7.0 Search vendor "Redhat" for product "Enterprise Linux Desktop" and version "7.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Search vendor "Redhat" for product "Enterprise Linux Server"				7.0 Search vendor "Redhat" for product "Enterprise Linux Server" and version "7.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Workstation Search vendor "Redhat" for product "Enterprise Linux Workstation"				7.0 Search vendor "Redhat" for product "Enterprise Linux Workstation" and version "7.0"		-		Affected