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CVSS: 7.5EPSS: 0%CPEs: 4EXPL: 0

Open Information Security Foundation Suricata prior to version 4.1.2 is affected by: Denial of Service - DNS detection bypass. The impact is: An attacker can evade a signature detection with a specialy formed network packet. The component is: app-layer-detect-proto.c, decode.c, decode-teredo.c and decode-ipv6.c (https://github.com/OISF/suricata/pull/3590/commits/11f3659f64a4e42e90cb3c09fcef66894205aefe, https://github.com/OISF/suricata/pull/3590/commits/8357ef3f8ffc7d99ef6571350724160de356158b). The attack vector is: An attacker can trigger the vulnerability by sending a specifically crafted network request. The fixed version is: 4.1.2. • https://github.com/OISF/suricata/pull/3590/commits/11f3659f64a4e42e90cb3c09fcef66894205aefe https://github.com/OISF/suricata/pull/3590/commits/8357ef3f8ffc7d99ef6571350724160de356158b https://redmine.openinfosecfoundation.org/issues/2736 • CWE-20: Improper Input Validation •

CVSS: 7.5EPSS: 0%CPEs: 1EXPL: 0

A buffer over-read issue was discovered in Suricata 4.1.x before 4.1.4. If the input of the decode-mpls.c function DecodeMPLS is composed only of a packet of source address and destination address plus the correct type field and the right number for shim, an attacker can manipulate the control flow, such that the condition to leave the loop is true. After leaving the loop, the network packet has a length of 2 bytes. There is no validation of this length. Later on, the code tries to read at an empty position, leading to a crash. • https://lists.openinfosecfoundation.org/pipermail/oisf-announce https://suricata-ids.org/2019/04/30/suricata-4-1-4-released • CWE-125: Out-of-bounds Read •

CVSS: 9.3EPSS: 0%CPEs: 1EXPL: 1

OISF suricata-update version 1.0.0a1 contains an Insecure Deserialization vulnerability in the insecure yaml.load-Function as used in the following files: config.py:136, config.py:142, sources.py:99 and sources.py:131. The "list-sources"-command is affected by this bug. that can result in Remote Code Execution(even as root if suricata-update is called by root). This attack appears to be exploitable via a specially crafted yaml-file at https://www.openinfosecfoundation.org/rules/index.yaml. This vulnerability appears to have been fixed in 1.0.0b1. OISF suricata-update 1.0.0a1 contiene una vulnerabilidad de deserialización no segura en la función insegura yaml.load, tal y como se emplea en los siguientes archivos: config.py:136, config.py:142, sources.py:99 y sources.py:131. • https://redmine.openinfosecfoundation.org/issues/2359 https://tech.feedyourhead.at/content/remote-code-execution-in-suricata-update • CWE-502: Deserialization of Untrusted Data •