VDB-119712 · CVE-2018-12096 · ID 33

liblnk up to 2018-04-19 lnk File liblnk_data_string.c liblnk_data_string_get_utf8_string_size out-of-bounds ⚔ [Disputed]

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.1	$0-$5k	0.00

Summaryinfo

A vulnerability described as critical has been identified in liblnk up to 2018-04-19. Affected is the function liblnk_data_string_get_utf8_string_size of the file liblnk_data_string.c of the component lnk File Handler. The manipulation results in out-of-bounds. This vulnerability is reported as CVE-2018-12096. The attack can be launched remotely. No exploit exists. There is ongoing doubt regarding the real existence of this vulnerability.

Detailsinfo

A vulnerability, which was classified as critical, was found in liblnk up to 2018-04-19. Affected is the function liblnk_data_string_get_utf8_string_size of the file liblnk_data_string.c of the component lnk File Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

The liblnk_data_string_get_utf8_string_size function in liblnk_data_string.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.

The bug was discovered 06/12/2018. The weakness was disclosed 06/19/2018 as not defined mailinglist post (Full-Disclosure). The advisory is shared for download at seclists.org. This vulnerability is traded as CVE-2018-12096 since 06/11/2018. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 7 days. During that time the estimated underground price was around $0-$5k. The real existence of this vulnerability is still doubted at the moment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The entries VDB-119713 and VDB-119714 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

liblnk

Version

2018-04-19

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 6.1

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CNA Base Score: 5.5
CNA Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/11/2018 🔍
06/12/2018 +1 days 🔍
06/19/2018 +6 days 🔍
06/19/2018 +0 days 🔍
06/20/2018 +1 days 🔍
08/05/2024 +2238 days 🔍

Sourcesinfo

Advisory: 33
Status: Not defined
Disputed: 🔍

CVE: CVE-2018-12096 (🔍)
GCVE (CVE): GCVE-0-2018-12096
GCVE (VulDB): GCVE-100-119712
See also: 🔍

Entryinfo

Created: 06/20/2018 13:32
Updated: 08/05/2024 13:11
Changes: 06/20/2018 13:32 (59), 02/20/2020 15:38 (1), 03/28/2023 09:21 (3), 06/18/2024 23:05 (42), 08/05/2024 13:11 (2)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.