A flaw was found in openvswitch (OVS). When processing an IP packet with protocol 0, OVS will install the datapath flow without the action modifying the IP header. This issue results (for both kernel and userspace datapath) in installing a datapath flow matching all IP protocols (nw_proto is wildcarded) for this flow, but with an incorrect action, possibly causing incorrect handling of other IP packets with a != 0 IP protocol that matches this dp flow.

An update of the openvswitch package has been released.

The version of openvswitch installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2023-1668 advisory.

  - A flaw was found in openvswitch (OVS). When processing an IP packet with protocol 0, OVS will install the     datapath flow without the action modifying the IP header. This issue results (for both kernel and     userspace datapath) in installing a datapath flow matching all IP protocols (nw_proto is wildcarded) for     this flow, but with an incorrect action, possibly causing incorrect handling of other IP packets with a !=     0 IP protocol that matches this dp flow. (CVE-2023-1668)

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

This plugin has been deprecated as it does not adhere to established standards for this style of check.

The remote host is affected by the vulnerability described in GLSA-202311-16 (Open vSwitch: Multiple Vulnerabilities)

  - A flaw was found in multiple versions of OpenvSwitch. Specially crafted LLDP packets can cause memory to     be lost when allocating data to handle specific optional TLVs, potentially causing a denial of service.
    The highest threat from this vulnerability is to system availability. (CVE-2020-27827)

  - A vulnerability was found in openvswitch. A limitation in the implementation of userspace packet parsing     can allow a malicious user to send a specially crafted packet causing the resulting megaflow in the kernel     to be too wide, potentially causing a denial of service. The highest threat from this vulnerability is to     system availability. (CVE-2020-35498)

  - A memory leak was found in Open vSwitch (OVS) during userspace IP fragmentation processing. An attacker     could use this flaw to potentially exhaust available memory by keeping sending packet fragments.
    (CVE-2021-3905)

  - Open vSwitch (aka openvswitch) 2.11.0 through 2.15.0 has a use-after-free in decode_NXAST_RAW_ENCAP     (called from ofpact_decode and ofpacts_decode) during the decoding of a RAW_ENCAP action. (CVE-2021-36980)

  - An out-of-bounds read in Organization Specific TLV was found in various versions of OpenvSwitch.
    (CVE-2022-4337)

  - An integer underflow in Organization Specific TLV was found in various versions of OpenvSwitch.
    (CVE-2022-4338)

  - A flaw was found in openvswitch (OVS). When processing an IP packet with protocol 0, OVS will install the     datapath flow without the action modifying the IP header. This issue results (for both kernel and     userspace datapath) in installing a datapath flow matching all IP protocols (nw_proto is wildcarded) for     this flow, but with an incorrect action, possibly causing incorrect handling of other IP packets with a !=     0 IP protocol that matches this dp flow. (CVE-2023-1668)

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

The remote SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2023:2621-1 advisory.

  - A flaw was found in openvswitch (OVS). When processing an IP packet with protocol 0, OVS will install the     datapath flow without the action modifying the IP header. This issue results (for both kernel and     userspace datapath) in installing a datapath flow matching all IP protocols (nw_proto is wildcarded) for     this flow, but with an incorrect action, possibly causing incorrect handling of other IP packets with a !=     0 IP protocol that matches this dp flow. (CVE-2023-1668)

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

The remote SUSE Linux SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2023:2536-1 advisory.

  - A flaw was found in openvswitch (OVS). When processing an IP packet with protocol 0, OVS will install the     datapath flow without the action modifying the IP header. This issue results (for both kernel and     userspace datapath) in installing a datapath flow matching all IP protocols (nw_proto is wildcarded) for     this flow, but with an incorrect action, possibly causing incorrect handling of other IP packets with a !=     0 IP protocol that matches this dp flow. (CVE-2023-1668)

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

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2023:3491 advisory.

    Security Fix(es):

    * kernel: use-after-free caused by l2cap_reassemble_sdu() in net/bluetooth/l2cap_core.c (CVE-2022-3564)

    * kernel: stack overflow in do_proc_dointvec and proc_skip_spaces (CVE-2022-4378)

    * samba: RC4/HMAC-MD5 NetLogon Secure Channel is weak and should be avoided (CVE-2022-38023)

    * kernel: mm/mremap.c use-after-free vulnerability (CVE-2022-41222)

    * kernel: net/ulp: use-after-free in listening ULP sockets (CVE-2023-0461)

    * openvswitch: ip proto 0 triggers incorrect handling (CVE-2023-1668)

    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.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2023:2296-1 advisory.

  - A flaw was found in openvswitch (OVS). When processing an IP packet with protocol 0, OVS will install the     datapath flow without the action modifying the IP header. This issue results (for both kernel and     userspace datapath) in installing a datapath flow matching all IP protocols (nw_proto is wildcarded) for     this flow, but with an incorrect action, possibly causing incorrect handling of other IP packets with a !=     0 IP protocol that matches this dp flow. (CVE-2023-1668)

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

The remote SUSE Linux SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:2274-1 advisory.

  - An out-of-bounds read in Organization Specific TLV was found in various versions of OpenvSwitch.
    (CVE-2022-4337)

  - An integer underflow in Organization Specific TLV was found in various versions of OpenvSwitch.
    (CVE-2022-4338)

  - A flaw was found in openvswitch (OVS). When processing an IP packet with protocol 0, OVS will install the     datapath flow without the action modifying the IP header. This issue results (for both kernel and     userspace datapath) in installing a datapath flow matching all IP protocols (nw_proto is wildcarded) for     this flow, but with an incorrect action, possibly causing incorrect handling of other IP packets with a !=     0 IP protocol that matches this dp flow. (CVE-2023-1668)

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

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:2275-1 advisory.

  - An out-of-bounds read in Organization Specific TLV was found in various versions of OpenvSwitch.
    (CVE-2022-4337)

  - An integer underflow in Organization Specific TLV was found in various versions of OpenvSwitch.
    (CVE-2022-4338)

  - A flaw was found in openvswitch (OVS). When processing an IP packet with protocol 0, OVS will install the     datapath flow without the action modifying the IP header. This issue results (for both kernel and     userspace datapath) in installing a datapath flow matching all IP protocols (nw_proto is wildcarded) for     this flow, but with an incorrect action, possibly causing incorrect handling of other IP packets with a !=     0 IP protocol that matches this dp flow. (CVE-2023-1668)

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

The remote Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-6068-1 advisory.

    David Marchand discovered that Open vSwitch incorrectly handled IP packets with the protocol set to 0. A     remote attacker could possibly use this issue to cause a denial of service.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

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

The remote Debian 10 host has packages installed that are affected by a vulnerability as referenced in the dla-3410 advisory.

  - A flaw was found in openvswitch (OVS). When processing an IP packet with protocol 0, OVS will install the     datapath flow without the action modifying the IP header. This issue results (for both kernel and     userspace datapath) in installing a datapath flow matching all IP protocols (nw_proto is wildcarded) for     this flow, but with an incorrect action, possibly causing incorrect handling of other IP packets with a !=     0 IP protocol that matches this dp flow. (CVE-2023-1668)

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

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2023:1824 advisory.

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

    Security Fix(es):

    * openvswitch: ip proto 0 triggers incorrect handling (CVE-2023-1668)

    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):

    * [23.C RHEL-8] Fast Datapath Release (BZ#2184496)

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

The remote Fedora 38 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2023-7da03dc2ae advisory.

    Update for 3.1.1 (#2185071), includes fixes for CVE-2023-1668 (#2186245)

Tenable has extracted the preceding description block directly from the Fedora security advisory.

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

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2023:1823 advisory.

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

    Security Fix(es):

    * openvswitch: ip proto 0 triggers incorrect handling (CVE-2023-1668)

    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):

    * [23.C RHEL-8] Fast Datapath Release (BZ#2184495)

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

The remote Debian 11 host has packages installed that are affected by a vulnerability as referenced in the dsa-5387 advisory.

  - A flaw was found in openvswitch (OVS). When processing an IP packet with protocol 0, OVS will install the     datapath flow without the action modifying the IP header. This issue results (for both kernel and     userspace datapath) in installing a datapath flow matching all IP protocols (nw_proto is wildcarded) for     this flow, but with an incorrect action, possibly causing incorrect handling of other IP packets with a !=     0 IP protocol that matches this dp flow. (CVE-2023-1668)

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

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2023:1770 advisory.

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

    Security Fix(es):

    * openvswitch: ip proto 0 triggers incorrect handling (CVE-2023-1668)

    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):

    * [23.C RHEL-9] Fast Datapath Release (BZ#2177688)

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2023:1769 advisory.

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

    Security Fix(es):

    * openvswitch: ip proto 0 triggers incorrect handling (CVE-2023-1668)

    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):

    * [23.C RHEL-9] Fast Datapath Release (BZ#2177686)

    * [CT] Inner header of ICMP related traffic does not get DNATed (BZ#2178203)

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2023:1765 advisory.

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

    Security Fix(es):

    * openvswitch: ip proto 0 triggers incorrect handling (CVE-2023-1668)

    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):

    * [23.C RHEL-8] Fast Datapath Release (BZ#2177685)

    * [CT] Inner header of ICMP related traffic does not get DNATed (BZ#2178200)

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2023:1766 advisory.

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

    Security Fix(es):

    * openvswitch: ip proto 0 triggers incorrect handling (CVE-2023-1668)

    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):

    * [23.C RHEL-8] Fast Datapath Release (BZ#2177687)

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

ID	Name	Product	Family	Severity
204148	Photon OS 5.0: Openvswitch PHSA-2023-5.0-0093	Nessus	PhotonOS Local Security Checks	high
203883	Photon OS 3.0: Openvswitch PHSA-2023-3.0-0646	Nessus	PhotonOS Local Security Checks	high
203310	Photon OS 4.0: Openvswitch PHSA-2023-4.0-0391	Nessus	PhotonOS Local Security Checks	high
201591	CBL Mariner 2.0 Security Update: openvswitch (CVE-2023-1668)	Nessus	MarinerOS Local Security Checks	high
195853	RHEL 8 : openvswitch (Unpatched Vulnerability) (deprecated)	Nessus	Red Hat Local Security Checks	critical
195808	RHEL 7 : openvswitch (Unpatched Vulnerability) (deprecated)	Nessus	Red Hat Local Security Checks	critical
186285	GLSA-202311-16 : Open vSwitch: Multiple Vulnerabilities	Nessus	Gentoo Local Security Checks	critical
177606	SUSE SLES12 Security Update : openvswitch (SUSE-SU-2023:2621-1)	Nessus	SuSE Local Security Checks	high
177439	SUSE SLES15 / openSUSE 15 Security Update : openvswitch3 (SUSE-SU-2023:2536-1)	Nessus	SuSE Local Security Checks	high
176768	RHEL 8 : Red Hat Virtualization Host 4.4.z SP 1 (RHSA-2023:3491)	Nessus	Red Hat Local Security Checks	high
176410	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : openvswitch (SUSE-SU-2023:2296-1)	Nessus	SuSE Local Security Checks	high
176271	SUSE SLES15 / openSUSE 15 Security Update : openvswitch (SUSE-SU-2023:2274-1)	Nessus	SuSE Local Security Checks	critical
176264	SUSE SLES15 Security Update : openvswitch (SUSE-SU-2023:2275-1)	Nessus	SuSE Local Security Checks	critical
175567	Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS : Open vSwitch vulnerability (USN-6068-1)	Nessus	Ubuntu Local Security Checks	high
174966	Debian DLA-3410-1 : openvswitch - LTS security update	Nessus	Debian Local Security Checks	high
174693	RHEL 8 : openvswitch2.15 (RHSA-2023:1824)	Nessus	Red Hat Local Security Checks	high
174659	Fedora 38 : openvswitch (2023-7da03dc2ae)	Nessus	Fedora Local Security Checks	high
174563	RHEL 8 : openvswitch2.13 (RHSA-2023:1823)	Nessus	Red Hat Local Security Checks	high
174273	Debian DSA-5387-1 : openvswitch - security update	Nessus	Debian Local Security Checks	high
174270	RHEL 9 : openvswitch3.1 (RHSA-2023:1770)	Nessus	Red Hat Local Security Checks	high
174269	RHEL 9 : openvswitch2.17 (RHSA-2023:1769)	Nessus	Red Hat Local Security Checks	high
174268	RHEL 8 : openvswitch2.17 (RHSA-2023:1765)	Nessus	Red Hat Local Security Checks	high
174267	RHEL 8 : openvswitch3.1 (RHSA-2023:1766)	Nessus	Red Hat Local Security Checks	high

Detections

Analytics

CVE-2023-1668

high

Tenable Plugins

high

high

high

high

critical

critical

critical

high

high

high

high

critical

critical

high

high

high

high

high

high

high

high

high

high