Vulnerability CVE-2019-17420
Published: 2019-10-09   Modified: 2019-10-10

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.

Type:

CWE-20

 (Improper Input Validation)

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None
Affected software
Suricata-ids -> Suricata 
OISF -> Libhtp 

 References:
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
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