OISF libhtp up to 0.5.30 HTTP Protocol Parser input validation

Summaryinfo

A vulnerability labeled as critical has been found in OISF libhtp up to 0.5.30. This vulnerability affects unknown code of the component HTTP Protocol Parser. Such manipulation leads to input validation. This vulnerability is referenced as CVE-2019-17420. It is possible to launch the attack remotely. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, has been found in OISF libhtp up to 0.5.30. Affected by this issue is an unknown part of the component HTTP Protocol Parser. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is confidentiality, integrity, and availability. CVE summarizes:

In OISF LibHTP before 0.5.31, as used in Suricata 4.1.4 and other products, an HTTP protocol parsing error causes the http_header signature to not alert on a response with a single \r\n ending.

The weakness was published 10/10/2019. This vulnerability is handled as CVE-2019-17420 since 10/09/2019. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

Upgrading to version 0.5.31 eliminates this vulnerability.

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Affected

• Suricata 4.1.4

Productinfo

Vendor

• OISF

Name

• libhtp

Version

• 0.5.0
• 0.5.1
• 0.5.2
• 0.5.3
• 0.5.4
• 0.5.5
• 0.5.6
• 0.5.7
• 0.5.8
• 0.5.9
• 0.5.10
• 0.5.11
• 0.5.12
• 0.5.13
• 0.5.14
• 0.5.15
• 0.5.16
• 0.5.17
• 0.5.18
• 0.5.19
• 0.5.20
• 0.5.21
• 0.5.22
• 0.5.23
• 0.5.24
• 0.5.25
• 0.5.26
• 0.5.27
• 0.5.28
• 0.5.29
• 0.5.30

Website

• Product: https://github.com/OISF/libhtp/

CPE 2.3info

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CPE 2.2info

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Entryinfo

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