CVE-2019-17420
MEDIUMCVSS 5.3/10EPSS 1.35%
Last modified
CVE-2019-17420 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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.. EPSS estimates a 1.35% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Oisf | Libhtp | < 0.5.31 |
| Suricata-Ids | Suricata | 4.1.4 |
References
- https://github.com/OISF/libhtp/pull/213Patch, Third Party Advisory
- https://redmine.openinfosecfoundation.org/issues/2969Issue Tracking, Vendor Advisory
- https://github.com/OISF/libhtp/pull/213Patch, Third Party Advisory
- https://redmine.openinfosecfoundation.org/issues/2969Issue Tracking, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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 single \r\n ending.
How severe is CVE-2019-17420?
CVE-2019-17420 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.35% probability of exploitation in the next 30 days.
How do I fix CVE-2019-17420?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2019-17420?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST