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CVE-2023-38039

7.5 · HIGH

When curl retrieves an HTTP response, it stores the incoming headers so that they can be accessed later via the libcurl headers API.

Published Sep 15, 2023CWE-770EPSS 58.07%

Overview

CVE-2023-38039 is a high-severity vulnerability. It was published on September 15, 2023 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

When curl retrieves an HTTP response, it stores the incoming headers so that

they can be accessed later via the libcurl headers API.

However, curl did not have a limit in how many or how large headers it would

accept in a response, allowing a malicious server to stream an endless series

of headers and eventually cause curl to run out of heap memory.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refseclists.org/fulldisclosure/2023/Oct/17Refseclists.org/fulldisclosure/2024/Jan/34Refseclists.org/fulldisclosure/2024/Jan/37Refseclists.org/fulldisclosure/2024/Jan/38Refhackerone.com/reports/2072338Reflists.fedoraproject.org/archives/list/[email protected]/message/5DCZMYODALBLVOXVJEN2LF2MLANEYL4F/Reflists.fedoraproject.org/archives/list/[email protected]/message/M6KGKB2JNZVT276JYSKI6FV2VFJUGDOJ/Reflists.fedoraproject.org/archives/list/[email protected]/message/TEAWTYHC3RT6ZRS5OZRHLAIENVN6CCIS/Refsecurity.gentoo.org/glsa/202310-12Refsecurity.netapp.com/advisory/ntap-20231013-0005/

How CyberStrike helps

Frequently asked questions

What is CVE-2023-38039?

CVE-2023-38039 is a high-severity vulnerability. It was published on September 15, 2023 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2023-38039?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2023-38039?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-38039?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-38039 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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