liblnk up to 2018-04-19 lnk File liblnk_data_block.c liblnk_data_block_read 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-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in liblnk up to 2018-04-19. Affected by this issue is the function liblnk_data_block_read of the file liblnk_data_block.c of the component lnk File Handler. Such manipulation leads to out-of-bounds. This vulnerability is traded as CVE-2018-12098. The attack may be launched remotely. There is no exploit available. It is still unclear if this vulnerability genuinely exists.

Detailsinfo

A vulnerability was found in liblnk up to 2018-04-19 and classified as critical. Affected by this issue is the function liblnk_data_block_read of the file liblnk_data_block.c of the component lnk File Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The bug was discovered 06/12/2018. The weakness was shared 06/19/2018 as not defined mailinglist post (Full-Disclosure). The advisory is available at seclists.org. This vulnerability is handled as CVE-2018-12098 since 06/11/2018. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit.

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. The vulnerability scanner Nessus provides a plugin with the ID 253195 (Linux Distros Unpatched Vulnerability : CVE-2018-12098), which helps to determine the existence of the flaw in a target environment.

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

The vulnerability is also documented in the vulnerability database at Tenable (253195). The entries VDB-119712 and VDB-119713 are related to this item. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

Version

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

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 253195
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2018-12098

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 🔍
08/25/2025 +2623 days 🔍

Sourcesinfo

Advisory: 33
Status: Not defined
Disputed: 🔍

CVE: CVE-2018-12098 (🔍)
GCVE (CVE): GCVE-0-2018-12098
GCVE (VulDB): GCVE-100-119714
See also: 🔍

Entryinfo

Created: 06/20/2018 13:32
Updated: 08/25/2025 02:04
Changes: 06/20/2018 13:32 (59), 02/20/2020 15:46 (1), 03/28/2023 09:26 (3), 08/05/2024 13:11 (28), 08/25/2025 02:04 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you need the next level of professionalism?

Upgrade your account now!