VDB-130646 · CVE-2019-7559 · Issue 30

Boolector Btor2Tools prior 2019-01-15 btor2parser.c 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.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability described as critical has been identified in Boolector Btor2Tools. Affected is an unknown function of the file btor2parser/btor2parser.c. Such manipulation leads to out-of-bounds write. This vulnerability is documented as CVE-2019-7559. The attack needs to be performed locally. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Boolector Btor2Tools. Affected by this issue is an unknown code block of the file btor2parser/btor2parser.c. 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:

In btor2parser/btor2parser.c in Boolector Btor2Tools before 2019-01-15, opening a specially crafted input file leads to an out of bounds write in pusht_bfr.

The bug was discovered 01/15/2019. The weakness was released 02/07/2019. This vulnerability is handled as CVE-2019-7559 since 02/06/2019. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit.

Upgrading to version 2019-01-15 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

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Productinfo

Vendor

Boolector

Name

Btor2Tools

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

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

NVD Base Score: 🔍

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: 🔍

Upgrade: Btor2Tools 2019-01-15

Timelineinfo

01/15/2019 🔍
01/15/2019 +0 days 🔍
02/06/2019 +22 days 🔍
02/07/2019 +1 days 🔍
02/08/2019 +1 days 🔍
07/06/2023 +1609 days 🔍

Sourcesinfo

Advisory: 30
Status: Not defined

CVE: CVE-2019-7559 (🔍)
GCVE (CVE): GCVE-0-2019-7559
GCVE (VulDB): GCVE-100-130646

Entryinfo

Created: 02/08/2019 09:41
Updated: 07/06/2023 20:06
Changes: 02/08/2019 09:41 (54), 05/09/2020 09:23 (1), 07/06/2023 20:06 (5)
Complete: 🔍
Cache ID: 216::103