Medium severity · published Oct 10, 2019
CVE-2019-17420
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…
5.3
CVSS
1.4%
EPSS
No
On KEV
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
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 71% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Libhtp · Oisf
before 0.5.31 · source: NVD
SU
Suricata · Suricata-ids
4.1.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-17420
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-17420
Patch
https://github.com/OISF/libhtp/compare/0.5.30...0.5.31
Patch
https://github.com/OISF/libhtp/pull/213
Issue Tracking
https://redmine.openinfosecfoundation.org/issues/2969
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