DNS Name Resolution Vulnerability in dnspython Affecting Eventlet
CVE-2023-29483

7HIGH

Key Information:

Vendor

Eventlet

Status
Eventlet
Vendor
CVE Published:
11 April 2024

What is CVE-2023-29483?

The vulnerability in dnspython versions prior to 2.6.0, when used alongside Eventlet, allows remote attackers to interfere with DNS name resolution. Attackers can exploit this by sending a stream of invalid packets from a seemingly valid IP address and source port. Due to the lack of an effective handling mechanism, dnspython fails to wait for a valid response within a designated timeframe, thereby leading to potential service disruption. While dnspython 2.6.0 introduced problematic functionalities, the subsequent release, 2.6.1, addresses these issues, making it critical for users to stay updated to maintain the integrity of DNS operations.

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References

https://www.dnspython.org/
https://github.com/rthalley/dnspython/releases/tag/v2.6.0
https://github.com/rthalley/dnspython/issues/1045

CVSS V3.1

Score:
7
Severity:
HIGH
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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