Vulnerabilities > CVE-2018-20699 - Resource Exhaustion vulnerability in multiple products

047910
CVSS 4.0 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
SINGLE
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
PARTIAL
network
low complexity
docker
redhat
CWE-400
nessus

Summary

Docker Engine before 18.09 allows attackers to cause a denial of service (dockerd memory consumption) via a large integer in a --cpuset-mems or --cpuset-cpus value, related to daemon/daemon_unix.go, pkg/parsers/parsers.go, and pkg/sysinfo/sysinfo.go.

Vulnerable Configurations

Part Description Count
Application
Docker
187
OS
Redhat
1

Common Attack Pattern Enumeration and Classification (CAPEC)

  • XML Ping of the Death
    An attacker initiates a resource depletion attack where a large number of small XML messages are delivered at a sufficiently rapid rate to cause a denial of service or crash of the target. Transactions such as repetitive SOAP transactions can deplete resources faster than a simple flooding attack because of the additional resources used by the SOAP protocol and the resources necessary to process SOAP messages. The transactions used are immaterial as long as they cause resource utilization on the target. In other words, this is a normal flooding attack augmented by using messages that will require extra processing on the target.
  • XML Entity Expansion
    An attacker submits an XML document to a target application where the XML document uses nested entity expansion to produce an excessively large output XML. XML allows the definition of macro-like structures that can be used to simplify the creation of complex structures. However, this capability can be abused to create excessive demands on a processor's CPU and memory. A small number of nested expansions can result in an exponential growth in demands on memory.
  • Inducing Account Lockout
    An attacker leverages the security functionality of the system aimed at thwarting potential attacks to launch a denial of service attack against a legitimate system user. Many systems, for instance, implement a password throttling mechanism that locks an account after a certain number of incorrect log in attempts. An attacker can leverage this throttling mechanism to lock a legitimate user out of their own account. The weakness that is being leveraged by an attacker is the very security feature that has been put in place to counteract attacks.
  • Violating Implicit Assumptions Regarding XML Content (aka XML Denial of Service (XDoS))
    XML Denial of Service (XDoS) can be applied to any technology that utilizes XML data. This is, of course, most distributed systems technology including Java, .Net, databases, and so on. XDoS is most closely associated with web services, SOAP, and Rest, because remote service requesters can post malicious XML payloads to the service provider designed to exhaust the service provider's memory, CPU, and/or disk space. The main weakness in XDoS is that the service provider generally must inspect, parse, and validate the XML messages to determine routing, workflow, security considerations, and so on. It is exactly these inspection, parsing, and validation routines that XDoS targets. There are three primary attack vectors that XDoS can navigate Target CPU through recursion: attacker creates a recursive payload and sends to service provider Target memory through jumbo payloads: service provider uses DOM to parse XML. DOM creates in memory representation of XML document, but when document is very large (for example, north of 1 Gb) service provider host may exhaust memory trying to build memory objects. XML Ping of death: attack service provider with numerous small files that clog the system. All of the above attacks exploit the loosely coupled nature of web services, where the service provider has little to no control over the service requester and any messages the service requester sends.

Nessus

  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2019-723711C645.NASL
    description - Resolves: #1666565, #1667625 - CVE-2018-20699 - Resolves: #1663068, #1667626 - umount all procfs and sysfs with --no-pivot - built docker @projectatomic/docker-1.13.1 commit 1185cfd - built docker-runc @projectatomic/docker-1.13.1 commit e4ffe43 ---- Resolves: #1598581, #1598582 - CVE-2018-10892 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-03-17
    modified2019-01-31
    plugin id121488
    published2019-01-31
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/121488
    titleFedora 28 : 2:docker-latest (2019-723711c645)
  • NASL familyRed Hat Local Security Checks
    NASL idREDHAT-RHSA-2019-0487.NASL
    descriptionAn update for docker is now available for Red Hat Enterprise Linux 7 Extras. Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link (s) in the References section. Docker is an open source engine that automates the deployment of any application as a lightweight, portable, self-sufficient container that runs virtually anywhere. Security Fix(es) : * docker: Memory exhaustion via large integer used with --cpuset-mems or --cpuset-cpus (CVE-2018-20699) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Bug Fix(es) : * docker runc
    last seen2020-06-01
    modified2020-06-02
    plugin id122806
    published2019-03-13
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/122806
    titleRHEL 7 : docker (RHSA-2019:0487)
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2019-F5B57646B7.NASL
    description - Resolves: #1666565, #1667625 - CVE-2018-20699 - Resolves: #1663068, #1667626 - umount all procfs and sysfs with --no-pivot - built docker @projectatomic/docker-1.13.1 commit 1185cfd - built docker-runc @projectatomic/docker-1.13.1 commit e4ffe43 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-03-18
    modified2019-01-31
    plugin id121493
    published2019-01-31
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/121493
    titleFedora 29 : 2:docker-latest (2019-f5b57646b7)
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2019-A034423DB8.NASL
    description - Resolves: #1666565, #1666566 - CVE-2018-20699 - Resolves: #1663068, #1667622 - umount all procfs and sysfs with --no-pivot - built docker @projectatomic/docker-1.13.1 commit 1185cfd - built docker-runc @projectatomic/docker-1.13.1 commit e4ffe43 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-03-18
    modified2019-01-31
    plugin id121490
    published2019-01-31
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/121490
    titleFedora 29 : 2:docker (2019-a034423db8)
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2019-901FEBA171.NASL
    description - Resolves: #1666565, #1666566 - CVE-2018-20699 - Resolves: #1663068, #1667622 - umount all procfs and sysfs with --no-pivot - built docker @projectatomic/docker-1.13.1 commit 1185cfd - built docker-runc @projectatomic/docker-1.13.1 commit e4ffe43 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-03-18
    modified2019-01-31
    plugin id121489
    published2019-01-31
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/121489
    titleFedora 28 : 2:docker (2019-901feba171)

Redhat

advisories
rhsa
idRHSA-2019:0487
rpms
  • docker-2:1.13.1-94.gitb2f74b2.el7
  • docker-client-2:1.13.1-94.gitb2f74b2.el7
  • docker-common-2:1.13.1-94.gitb2f74b2.el7
  • docker-debuginfo-2:1.13.1-94.gitb2f74b2.el7
  • docker-logrotate-2:1.13.1-94.gitb2f74b2.el7
  • docker-lvm-plugin-2:1.13.1-94.gitb2f74b2.el7
  • docker-novolume-plugin-2:1.13.1-94.gitb2f74b2.el7
  • docker-rhel-push-plugin-2:1.13.1-94.gitb2f74b2.el7
  • docker-v1.10-migrator-2:1.13.1-94.gitb2f74b2.el7