Vulnerability CVE-2018-12098

Vulnerability Name:

CVE-2018-12098 (CCN-144944)

Assigned:

2018-06-12

Published:

2018-06-12

Updated:

2018-09-01

Summary:

** DISPUTED ** The liblnk_data_block_read function in liblnk_data_block.c in liblnk through 2018-04-19 allows remote attackers to cause an information disclosure (heap-based buffer over-read) via a crafted lnk file.
Note: the vendor has disputed this as described in libyal/liblnk issue 33 on GitHub.

CVSS v3 Severity:

5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N)
5.0 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:P/RL:U/RC:R)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): None Availibility (A): None

3.3 Low (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N)
3.0 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:U/RC:R)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): Low Integrity (I): None Availibility (A): None

CVSS v2 Severity:

1.9 Low (CVSS v2 Vector: AV:L/AC:M/Au:N/C:P/I:N/A:N)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Medium Authentication (Au): None
Impact Metrics:	Confidentiality (C): Partial Integrity (I): None Availibility (A): None

1.7 Low (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:P/I:N/A:N)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Partial Integrity (I): None Availibility (A): None

Vulnerability Type:

CWE-125
CWE-200

Vulnerability Consequences:

Obtain Information

References:

Source: MITRE
Type: CNA
CVE-2018-12098

Source: CCN
Type: Full-Disclosure Mailing List, Tue, 12 Jun 2018 09:31:25 +0800 (GMT+08:00)
liblnk 20180419 vulns

Source: FULLDISC
Type: Mailing List, Third Party Advisory
20180614 liblnk 20180419 vulns

Source: XF
Type: UNKNOWN
liblnk-cve201812098-info-disc(144944)

Source: CCN
Type: liblnk GIT Repository
GitHub - libyal/liblnk: Library and tools to access the Windows Shortcut File (LNK) format

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2018-12098

Vulnerable Configuration:

Configuration 1:

cpe:/a:liblnk_project:liblnk:*:*:*:*:*:*:*:* (Version <= 20180419)

Configuration CCN 1:

cpe:/a:liblnk_project:liblnk:20180419:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:com.ubuntu.disco:def:2018120980000000	V	CVE-2018-12098 on Ubuntu 19.04 (disco) - low.	2018-06-19
oval:com.ubuntu.artful:def:201812098000	V	CVE-2018-12098 on Ubuntu 17.10 (artful) - low.	2018-06-19
oval:com.ubuntu.cosmic:def:2018120980000000	V	CVE-2018-12098 on Ubuntu 18.10 (cosmic) - low.	2018-06-19
oval:com.ubuntu.bionic:def:201812098000	V	CVE-2018-12098 on Ubuntu 18.04 LTS (bionic) - low.	2018-06-19
oval:com.ubuntu.bionic:def:2018120980000000	V	CVE-2018-12098 on Ubuntu 18.04 LTS (bionic) - low.	2018-06-19
oval:com.ubuntu.cosmic:def:201812098000	V	CVE-2018-12098 on Ubuntu 18.10 (cosmic) - low.	2018-06-19
oval:com.ubuntu.xenial:def:2018120980000000	V	CVE-2018-12098 on Ubuntu 16.04 LTS (xenial) - low.	2018-06-19
oval:com.ubuntu.xenial:def:201812098000	V	CVE-2018-12098 on Ubuntu 16.04 LTS (xenial) - low.	2018-06-19

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