CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
97.8%
Package : suricata
Version : 2.0.7-2+deb8u3
CVE ID : CVE-2017-7177 CVE-2017-15377 CVE-2018-6794
Debian Bug : 856648 889842 856649
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.
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 8 | amd64 | suricata | < 2.0.7-2+deb8u3 | suricata_2.0.7-2+deb8u3_amd64.deb |
Debian | 8 | armhf | suricata | < 2.0.7-2+deb8u3 | suricata_2.0.7-2+deb8u3_armhf.deb |
Debian | 8 | i386 | suricata | < 2.0.7-2+deb8u3 | suricata_2.0.7-2+deb8u3_i386.deb |
Debian | 8 | all | suricata | < 2.0.7-2+deb8u3 | suricata_2.0.7-2+deb8u3_all.deb |
Debian | 8 | armel | suricata | < 2.0.7-2+deb8u3 | suricata_2.0.7-2+deb8u3_armel.deb |
Debian | 7 | all | suricata | < 1.2.1-2+deb7u1 | suricata_1.2.1-2+deb7u1_all.deb |
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
97.8%