Suricata before 3.2.1 has an IPv4 defragmentation evasion issue caused by lack of a check for the IP protocol during fragment matching.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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-2017-7177)

Note that Nessus relies on the presence of the package as reported by the vendor.

Several issues were found in suricata, an intrusion detection and prevention tool.

CVE-2017-7177

Suricata has an IPv4 defragmentation evasion issue caused by lack of a check for the IP protocol during fragment matching.

CVE-2017-15377

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).

CVE-2018-6794

Suricata is prone to an HTTP detection bypass vulnerability in detect.c and stream-tcp.c. If a malicious server breaks a normal TCP flow and sends data before the 3-way handshake is complete, then the data sent by the malicious server will be accepted by web clients such as a web browser or Linux CLI utilities, but ignored by Suricata IDS signatures. This mostly affects IDS signatures for the HTTP protocol and TCP stream content; signatures for TCP packets will inspect such network traffic as usual.

TEMP-0856648-2BC2C9 (no CVE assigned yet)

Out of bounds read in app-layer-dns-common.c. On a zero size A or AAAA record, 4 or 16 bytes would still be read.

For Debian 8 'Jessie', these problems have been fixed in version 2.0.7-2+deb8u3.

We recommend that you upgrade your suricata packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

It was discovered that there was a vulnerability in suricata, an intrusion detection tool; the IP protocol was not being used to match fragments with their packets allowing a carefully constructed packet (with a different protocol) to be matched, thus creating a packet that would not be re-assembled by the destination host.

For Debian 7 'Wheezy', this issue has been fixed in suricata version 1.2.1-2+deb7u1.

We recommend that you upgrade your suricata packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
253915	Linux Distros Unpatched Vulnerability : CVE-2017-7177	Nessus	Misc.	high
119425	Debian DLA-1603-1 : suricata security update	Nessus	Debian Local Security Checks	high
97899	Debian DLA-865-1 : suricata security update	Nessus	Debian Local Security Checks	high

Detections

Analytics

CVE-2017-7177

high

Tenable Plugins

high

high

high