CVE-2017-15377

MEDIUM

Description

In Suricata before 4.x, it was possible to trigger lots of redundant checks on the content of crafted network traffic with a certain signature, because of DetectEngineContentInspection in detect-engine-content-inspection.c. The search engine doesn't stop when it should after no match is found; instead, it stops only upon reaching inspection-recursion-limit (3000 by default).

References

https://github.com/OISF/suricata/pull/2680/commits/47afc577ff763150f9b47f10331f5ef9eb847a57

https://lists.debian.org/debian-lts-announce/2018/12/msg00000.html

https://redmine.openinfosecfoundation.org/issues/2231

Details

Source: MITRE

Published: 2017-10-23

Updated: 2018-12-05

Type: CWE-254

Risk Information

CVSS v2.0

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3.0

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH