Vyper up to 0.2.x memory corruption

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 (≈)
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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.
5.9$0-$5k0.00

Summaryinfo

A vulnerability was found in Vyper up to 0.2.x and classified as critical. Affected by this vulnerability is an unknown functionality. Executing a manipulation can lead to memory corruption. The identification of this vulnerability is CVE-2021-41121. The attack needs to be done within the local network. There is no exploit available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability has been found in Vyper up to 0.2.x and classified as critical. This vulnerability affects an unknown code. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was shared 10/07/2021 as GHSA-xv8x-pr4h-73jv. The advisory is shared for download at github.com. This vulnerability was named CVE-2021-41121 since 09/15/2021. There are neither technical details nor an exploit publicly available.

Upgrading to version 0.3.0 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be patching the affected component.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 5.9

VulDB Base Score: 4.6
VulDB Temp Score: 4.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory corruption
CWE: 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: Patch
Status: 🔍

0-Day Time: 🔍

Upgrade: Vyper 0.3.0
Patch: github.com

Timelineinfo

09/15/2021 🔍
10/07/2021 +22 days 🔍
10/07/2021 +0 days 🔍
10/10/2021 +3 days 🔍

Sourcesinfo

Advisory: GHSA-xv8x-pr4h-73jv
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-41121 (🔍)
GCVE (CVE): GCVE-0-2021-41121
GCVE (VulDB): GCVE-100-183964

Entryinfo

Created: 10/07/2021 08:41
Updated: 10/10/2021 08:16
Changes: 10/07/2021 08:41 (49), 10/10/2021 08:16 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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