In Open vSwitch (OvS) 2.7.0, while parsing an OpenFlow role status message, there is a call to the abort() function for undefined role status reasons in the function `ofp_print_role_status_message` in `lib/ofp-print.c` that may be leveraged toward a remote DoS attack by a malicious switch.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2017:2692 advisory.

  - openvswitch: Integer underflow in the ofputil_pull_queue_get_config_reply10 function (CVE-2017-9214)

  - openvswitch: Invalid processing of a malicious OpenFlow role status message (CVE-2017-9263)

  - openvswitch: Buffer over-read while parsing the group mod OpenFlow message (CVE-2017-9265)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

An update of the openvswitch package has been released.

This update for openvswitch fixes the following issues :

  - CVE-2017-9263: While parsing an OpenFlow role status     message, there is a call to the abort() functio for     undefined role status reasons in the function     `ofp_print_role_status_message` in `lib/ofp-print.c`     that may be leveraged toward a remote DoS attack by a     malicious switch. (bsc#1041470)

  - CVE-2017-9265: Buffer over-read while parsing the group     mod OpenFlow message sent from the controller in     `lib/ofp-util.c` in the function     `ofputil_pull_ofp15_group_mod`.(bsc#1041447)

  - CVE-2017-9214: While parsing an     OFPT_QUEUE_GET_CONFIG_REPLY type OFP 1.0 message, there     is a buffer over-read that is caused by an unsigned     integer underflow in the function     `ofputil_pull_queue_get_config_reply10` in     `lib/ofp-util.c`. (bsc#1040543)

  - CVE-2017-14970: In lib/ofp-util.c, there are multiple     memory leaks while parsing malformed OpenFlow group mod     messages.(bsc#1061310)

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

Add a symlink of the OCF script in the OCF resources folder

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Updated to Open vSwitch 2.7.3 and DPDK 16.11.3 for CVE-2017-14970

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Security fix for CVE-2017-9263, CVE-2017-9265

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Updated to Open vSwitch 2.7.1 and DPDK 16.11.2 (#1468234)

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.

Bhargava Shastry discovered that Open vSwitch incorrectly handled certain OFP messages. A remote attacker could possibly use this issue to cause Open vSwitch to crash, resulting in a denial of service.
(CVE-2017-9214)

It was discovered that Open vSwitch incorrectly handled certain OpenFlow role messages. A remote attacker could possibly use this issue to cause Open vSwitch to crash, resulting in a denial of service. (CVE-2017-9263)

It was discovered that Open vSwitch incorrectly handled certain malformed packets. A remote attacker could possibly use this issue to cause Open vSwitch to crash, resulting in a denial of service. This issue only affected Ubuntu 17.04. (CVE-2017-9264)

It was discovered that Open vSwitch incorrectly handled group mod OpenFlow messages. A remote attacker could possibly use this issue to cause Open vSwitch to crash, resulting in a denial of service.
(CVE-2017-9265).

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

This update for openvswitch fixes the following issues :

  - CVE-2017-9263: OpenFlow role status message can cause a     call to abort() leading to application crash     (bsc#1041470)

  - CVE-2017-9265: Buffer over-read while parsing message     could lead to crash or maybe arbitrary code execution     (bsc#1041447)

  - Do not restart the ovs-vswitchd and ovsdb-server     services on package updates (bsc#1002734)

  - Do not restart the ovs-vswitchd, ovsdb-server and     openvswitch services on package removals. This     facilitates potential future package moves but also     preserves connectivity when the package is removed     (bsc#1050896)

This update was imported from the SUSE:SLE-12-SP3:Update update project.

This update for openvswitch fixes the following issues :

  - CVE-2017-9263: OpenFlow role status message can cause a     call to abort() leading to application crash     (bsc#1041470)

  - CVE-2017-9265: Buffer over-read while parsing message     could lead to crash or maybe arbitrary code execution     (bsc#1041447)

  - Do not restart the ovs-vswitchd and ovsdb-server     services on package updates (bsc#1002734)

  - Do not restart the ovs-vswitchd, ovsdb-server and     openvswitch services on package removals. This     facilitates potential future package moves but also     preserves connectivity when the package is removed     (bsc#1050896)

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

An update for openvswitch is now available for Fast Datapath for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. 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.

Open vSwitch provides standard network bridging functions and support for the OpenFlow protocol for remote per-flow control of traffic.

The following packages have been upgraded to a later upstream version:
openvswitch (2.7.2). (BZ#1472854)

Security Fix(es) :

* An unsigned int wrap around leading to a buffer over-read was found when parsing OFPT_QUEUE_GET_CONFIG_REPLY messages in Open vSwitch (OvS). An attacker could use this flaw to cause a remote DoS.
(CVE-2017-9214)

* In Open vSwitch (OvS), while parsing an OpenFlow role status message there is a call to the abort() function for undefined role status reasons in the function `ofp_print_role_status_message` in `lib/ofp-print.c` that may be leveraged toward a remote DoS attack by a malicious switch. (CVE-2017-9263)

* A buffer over-read was found in the Open vSwitch (OvS) firewall implementation. This flaw can be triggered by parsing a specially crafted TCP, UDP, or IPv6 packet. A remote attack could use this flaw to cause a Denial of Service (DoS). (CVE-2017-9264)

* A buffer over-read flaw was found in Open vSwitch (OvS) while parsing the group mod OpenFlow messages sent from the controller. An attacker could use this flaw to cause a Denial of Service (DoS).
(CVE-2017-9265)

ID	Name	Product	Family	Severity
193837	RHEL 7 : openvswitch (RHSA-2017:2692)	Nessus	Red Hat Local Security Checks	critical
121740	Photon OS 1.0: Openvswitch PHSA-2017-0039	Nessus	PhotonOS Local Security Checks	medium
106555	SUSE SLES12 Security Update : openvswitch (SUSE-SU-2018:0311-1)	Nessus	SuSE Local Security Checks	critical
103891	Fedora 26 : openvswitch (2017-45625fecca)	Nessus	Fedora Local Security Checks	critical
103813	Ubuntu 16.04 LTS : Open vSwitch vulnerabilities (USN-3450-1)	Nessus	Ubuntu Local Security Checks	critical
102811	openSUSE Security Update : openvswitch (openSUSE-2017-973)	Nessus	SuSE Local Security Checks	critical
102626	SUSE SLES12 Security Update : openvswitch (SUSE-SU-2017:2212-1)	Nessus	SuSE Local Security Checks	critical
102187	RHEL 7 : openvswitch (RHSA-2017:2418)	Nessus	Red Hat Local Security Checks	critical

Detections

Analytics

CVE-2017-9263

medium

Tenable Plugins

critical

medium

critical

critical

critical

critical

critical

critical