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

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

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

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.

An update of the openvswitch package has been released.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:0691 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: Out-of-Bounds Read in Organization Specific TLV (CVE-2022-4337)
    * openvswitch: Integer Underflow in Organization Specific TLV (CVE-2022-4338)

    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 openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:2250-2 advisory.

    - CVE-2022-4338: Fixed Integer Underflow in Organization Specific TLV (bsc#1206580).
    - CVE-2022-4337: Fixed Out-of-Bounds Read in Organization Specific TLV (bsc#1206581).

Tenable has extracted the preceding description block directly from the SUSE 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 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-2022-4338 advisory.

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

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 multiple vulnerabilities as referenced in the dla-3253 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-3253-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                           Chris Lamb     December 31, 2022                             https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : openvswitch     Version        : 2.10.7+ds1-0+deb10u3     CVE IDs        : CVE-2022-4337 CVE-2022-4338     Debian Bug     : 1027273

    It was discovered that there was an out-of-bounds read and integer     underflow vulnerability in open vSwitch, a software-based Ethernet     virtual switch.

    For Debian 10 buster, these problems have been fixed in version     2.10.7+ds1-0+deb10u3.

    We recommend that you upgrade your openvswitch packages.

    For the detailed security status of openvswitch please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/openvswitch

    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

Tenable has extracted the preceding description block directly from the Debian 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 multiple vulnerabilities as referenced in the RHSA-2023:0688 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: Out-of-Bounds Read in Organization Specific TLV (CVE-2022-4337)
    * openvswitch: Integer Underflow in Organization Specific TLV (CVE-2022-4338)

    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 multiple vulnerabilities as referenced in the SUSE-SU-2023:2255-1 advisory.

    - CVE-2022-4338: Fixed Integer Underflow in Organization Specific TLV (bsc#1206580).
    - CVE-2022-4337: Fixed Out-of-Bounds Read in Organization Specific TLV (bsc#1206581).

Tenable has extracted the preceding description block directly from the SUSE 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 multiple vulnerabilities as referenced in the SUSE-SU-2023:2250-1 advisory.

    - CVE-2022-4338: Fixed Integer Underflow in Organization Specific TLV (bsc#1206580).
    - CVE-2022-4337: Fixed Out-of-Bounds Read in Organization Specific TLV (bsc#1206581).

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

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

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
225031	Linux Distros Unpatched Vulnerability : CVE-2022-4338	Nessus	Misc.	2025/3/5	2026/6/16	critical
186285	GLSA-202311-16 : Open vSwitch: Multiple Vulnerabilities	Nessus	Gentoo Local Security Checks	2023/11/26	2023/11/26	critical
203462	Photon OS 4.0: Openvswitch PHSA-2023-4.0-0316	Nessus	PhotonOS Local Security Checks	2024/7/23	2024/7/23	critical
171236	RHEL 9 : openvswitch2.17 (RHSA-2023:0691)	Nessus	Red Hat Local Security Checks	2023/2/9	2024/11/7	critical
178407	openSUSE 15: libopenvswitch-2_14-0 / libovn-20_06-0 / openvswitch / etc (SUSE-SU-2023:2250-2)	Nessus	SuSE Local Security Checks	2023/7/18	2026/6/25	critical
172949	CBL Mariner 2.0 Security Update: openvswitch (CVE-2022-4338)	Nessus	MarinerOS Local Security Checks	2023/3/20	2025/2/10	critical
169440	Debian dla-3253 : openvswitch-common - security update	Nessus	Debian Local Security Checks	2022/12/31	2025/1/22	critical
171232	RHEL 8 : openvswitch2.17 (RHSA-2023:0688)	Nessus	Red Hat Local Security Checks	2023/2/9	2024/11/7	critical
176141	SUSE SLED15: libopenvswitch-2_11-0 / openvswitch-ovn-central / etc (SUSE-SU-2023:2255-1)	Nessus	SuSE Local Security Checks	2023/5/20	2026/6/25	critical
176142	SUSE SLED15: libopenvswitch-2_14-0 / libovn-20_06-0 / openvswitch / etc (SUSE-SU-2023:2250-1)	Nessus	SuSE Local Security Checks	2023/5/20	2026/6/25	critical

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