VDB-249926 · CVE-2023-36861 · TALOS-2023-1811

GTKWave 3.3.115 LZMA_read_varint out-of-bounds write

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.
6.9	$0-$5k	0.00

Summaryinfo

A vulnerability described as critical has been identified in GTKWave 3.3.115. The affected element is the function LZMA_read_varint. Such manipulation leads to out-of-bounds write. This vulnerability is documented as CVE-2023-36861. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in GTKWave 3.3.115 and classified as critical. Affected by this issue is the function LZMA_read_varint. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

An out-of-bounds write vulnerability exists in the VZT LZMA_read_varint functionality of GTKWave 3.3.115. A specially crafted .vzt file can lead to arbitrary code execution. A victim would need to open a malicious file to trigger this vulnerability.

The weakness was released 01/08/2024 as TALOS-2023-1811. The advisory is available at talosintelligence.com. This vulnerability is handled as CVE-2023-36861 since 07/19/2023. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit.

Upgrading eliminates this vulnerability.

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Productinfo

Type

Operating System Utility Software

Name

GTKWave

Version

3.3.115

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.8
CNA Vector (Talos): 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / 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: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/19/2023 🔍
01/08/2024 +173 days 🔍
01/08/2024 +0 days 🔍
01/08/2024 +0 days 🔍

Sourcesinfo

Advisory: TALOS-2023-1811
Status: Confirmed

CVE: CVE-2023-36861 (🔍)
GCVE (CVE): GCVE-0-2023-36861
GCVE (VulDB): GCVE-100-249926

Entryinfo

Created: 01/08/2024 17:20
Changes: 01/08/2024 17:20 (49)
Complete: 🔍
Cache ID: 216::103