VDB-187042 · CVE-2021-40391 · TALOS-2021-1402

Gerbv 2.7.0 Drill Format T-code Tool Number 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, which was classified as critical, was found in Gerbv 2.7.0. This impacts an unknown function of the component Drill Format T-code Tool Number Handler. Executing a manipulation can lead to out-of-bounds write. This vulnerability is tracked as CVE-2021-40391. No exploit exists.

Detailsinfo

A vulnerability has been found in Gerbv 2.7.0 and classified as critical. This vulnerability affects some unknown functionality of the component Drill Format T-code Tool Number Handler. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 11/20/2021 as TALOS-2021-1402. The advisory is available at talosintelligence.com. This vulnerability was named CVE-2021-40391 since 09/01/2021. The technical details are unknown and an exploit is not available.

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

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

Productinfo

Name

Gerbv

Version

2.7.0

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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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: No
Local: No
Remote: Partially

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

09/01/2021 🔍
11/20/2021 +80 days 🔍
11/20/2021 +0 days 🔍
11/25/2021 +5 days 🔍

Sourcesinfo

Advisory: TALOS-2021-1402
Status: Not defined

CVE: CVE-2021-40391 (🔍)
GCVE (CVE): GCVE-0-2021-40391
GCVE (VulDB): GCVE-100-187042

Entryinfo

Created: 11/20/2021 11:14
Updated: 11/25/2021 08:54
Changes: 11/20/2021 11:14 (37), 11/25/2021 08:54 (1)
Complete: 🔍
Cache ID: 216::103