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CVE-2017-15377

Published: 23 October 2017

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).

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
suricata
Launchpad, Ubuntu, Debian
artful Ignored
(end of life)
bionic Needed

cosmic Ignored
(end of life)
disco Ignored
(end of life)
eoan Ignored
(end of life)
focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Not vulnerable
(1:4.0.5-1)
kinetic Not vulnerable
(1:4.0.5-1)
lunar Not vulnerable
(1:4.0.5-1)
mantic Not vulnerable
(1:4.0.5-1)
trusty Does not exist
(trusty was needed)
upstream
Released (1:4.0.5-1)
xenial Needed

zesty Ignored
(end of life)
Patches:
other: https://github.com/OISF/suricata/pull/2680/commits/47afc577ff763150f9b47f10331f5ef9eb847a57

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H