Gerbv 2.7.0 RS-274X Aperture Macro Variable out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Gerbv 2.7.0 and classified as critical. The affected element is an unknown function of the component RS-274X Aperture Macro Variable Handler. Executing a manipulation can lead to out-of-bounds write. This vulnerability is registered as CVE-2021-40393. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability classified as critical was found in Gerbv 2.7.0. This vulnerability affects an unknown code of the component RS-274X Aperture Macro Variable 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 published 12/22/2021 as TALOS-2021-1404. The advisory is shared for download at talosintelligence.com. This vulnerability was named CVE-2021-40393 since 09/01/2021. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 12/22/2021).

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

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

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.1

VulDB Base Score: 6.3
VulDB Temp Score: 6.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/01/2021 🔍
12/22/2021 +112 days 🔍
12/22/2021 +0 days 🔍
12/26/2021 +4 days 🔍

Sourcesinfo

Advisory: TALOS-2021-1404
Status: Not defined

CVE: CVE-2021-40393 (🔍)
GCVE (CVE): GCVE-0-2021-40393
GCVE (VulDB): GCVE-100-188920

Entryinfo

Created: 12/22/2021 22:24
Updated: 12/26/2021 08:10
Changes: 12/22/2021 22:24 (37), 12/26/2021 08:10 (1)
Complete: 🔍
Cache ID: 216::103

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