CVE-2017-15377 Denial of service in n/a
Attackers can cause denial of service in Suricata by triggering redundant content checks with crafted network traffic.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-15377?
CVE-2017-15377 is a high-severity denial of service vulnerability in n/a, published on 23 Oct 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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).
Which versions are affected by CVE-2017-15377?
It affects 1 product.
Products include Openinfosecfoundation Suricata.
How do I fix CVE-2017-15377?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2017-15377 being exploited?
There is no known exploitation of CVE-2017-15377 in the wild and no public exploit code.
Other vulnerabilities in n/a
- CVE-2015-8954 Security feature bypass in n/a
- CVE-2017-7177 Suricata before 3.2.1 has an IPv4 defragmentation evasion issue caused by lack of a check for the IP protocol during fragment matching.
- CVE-2014-6603 The SSHParseBanner function in SSH parser (app-layer-ssh.c) in Suricata before 2.0.4 allows remote attackers to bypass SSH rules, cause a de
Sources
Also known as DEBIAN-CVE-2017-15377, GHSA-4p84-v7gc-359m, UBUNTU-CVE-2017-15377.