CVE-2019-17420 Information

Description

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Reference

https://github.com/OISF/libhtp/compare/0.5.30…0.5.31 https://github.com/OISF/libhtp/pull/213 https://redmine.openinfosecfoundation.org/issues/2969

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

LOW

Base Score

NONE

Base Severity

5.3