Vulnerability identifier: #VU27051

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
confluent-kafka
Client/Desktop applications / Other client software

Vendor: Confluent Inc.

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in the SASL SCRAM protocol handler in "sasl.username" and "sasl.password". A remote attacker can trigger memory corruption and cause a denial of service on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

confluent-kafka: 1.0.0 - 1.3.0

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External links
http://snyk.io/vuln/SNYK-PYTHON-CONFLUENTKAFKA-565716
http://github.com/edenhill/librdkafka/commit/8f7a4c858afc8ff24672426473448c3e0c56cfc3

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.