CVE-2018-18585

libmspack: chmd_read_headers() fails to reject filenames containing NULL bytes

Severity Score

4.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

chmd_read_headers in mspack/chmd.c in libmspack before 0.8alpha accepts a filename that has '\0' as its first or second character (such as the "/\0" name).

chmd_read_headers en mspack/chmd.c en libmspack en versiones anteriores a la 0.8alpha acepta un nombre de archivo que tiene "\0" como su primer o segundo carácter (como el nombre "/\0").

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-10-22 CVE Reserved
2018-10-23 CVE Published
2024-08-05 CVE Updated
2024-08-05 First Exploit
2024-08-07 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (12)

URL	Tag	Source
https://bugs.debian.org/911637	Issue Tracking
https://lists.debian.org/debian-lts-announce/2018/10/msg00017.html	Mailing List
https://www.starwindsoftware.com/security/sw-20181213-0002	Third Party Advisory

URL	Date	SRC
https://github.com/kyz/libmspack/commit/8759da8db6ec9e866cb8eb143313f397f925bb4f	2024-08-05

URL	Date	SRC
https://www.openwall.com/lists/oss-security/2018/10/22/1	2022-10-25

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2019:2049	2022-10-25
https://security.gentoo.org/glsa/201903-20	2022-10-25
https://usn.ubuntu.com/3814-1	2022-10-25
https://usn.ubuntu.com/3814-2	2022-10-25
https://usn.ubuntu.com/3814-3	2022-10-25
https://access.redhat.com/security/cve/CVE-2018-18585	2019-08-06
https://bugzilla.redhat.com/show_bug.cgi?id=1644215	2019-08-06

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Kyzer Search vendor "Kyzer"		Libmspack Search vendor "Kyzer" for product "Libmspack"				0.3 Search vendor "Kyzer" for product "Libmspack" and version "0.3"		alpha		Affected
Kyzer Search vendor "Kyzer"		Libmspack Search vendor "Kyzer" for product "Libmspack"				0.4 Search vendor "Kyzer" for product "Libmspack" and version "0.4"		alpha		Affected
Kyzer Search vendor "Kyzer"		Libmspack Search vendor "Kyzer" for product "Libmspack"				0.5 Search vendor "Kyzer" for product "Libmspack" and version "0.5"		alpha		Affected
Kyzer Search vendor "Kyzer"		Libmspack Search vendor "Kyzer" for product "Libmspack"				0.6 Search vendor "Kyzer" for product "Libmspack" and version "0.6"		alpha		Affected
Kyzer Search vendor "Kyzer"		Libmspack Search vendor "Kyzer" for product "Libmspack"				0.7 Search vendor "Kyzer" for product "Libmspack" and version "0.7"		alpha		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
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
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
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				18.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.10"		-		Affected
Suse Search vendor "Suse"		Linux Enterprise Server Search vendor "Suse" for product "Linux Enterprise Server"				11 Search vendor "Suse" for product "Linux Enterprise Server" and version "11"		sp3, ltss		Affected
Suse Search vendor "Suse"		Linux Enterprise Server Search vendor "Suse" for product "Linux Enterprise Server"				12 Search vendor "Suse" for product "Linux Enterprise Server" and version "12"		ga, ltss		Affected
Suse Search vendor "Suse"		Linux Enterprise Server Search vendor "Suse" for product "Linux Enterprise Server"				12 Search vendor "Suse" for product "Linux Enterprise Server" and version "12"		sp1, ltss		Affected
Suse Search vendor "Suse"		Linux Enterprise Server Search vendor "Suse" for product "Linux Enterprise Server"				12 Search vendor "Suse" for product "Linux Enterprise Server" and version "12"		sp2, ltss		Affected
Starwindsoftware Search vendor "Starwindsoftware"		Starwind Virtual San Search vendor "Starwindsoftware" for product "Starwind Virtual San"				-		vsphere		Affected