The version of avahi installed on the remote host is prior to 0.6.31-20. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2023-2161 advisory.

    avahi-daemon denial of service can be caused by unprivileged users via DBus (CVE-2023-1981)

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

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

According to the versions of the avahi package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - A vulnerability was found in the avahi library. This flaw allows an unprivileged user to make a dbus call,     causing the avahi daemon to crash. (CVE-2023-1981)

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

The version of avahi installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2023-1981 advisory.

  - A vulnerability was found in the avahi library. This flaw allows an unprivileged user to make a dbus call,     causing the avahi daemon to crash. (CVE-2023-1981)

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

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2023-6707 advisory.

    - Fix CVE-2023-1981 (#2186689)
    - Fix CVE-2021-3502 (#1949949)

Tenable has extracted the preceding description block directly from the Oracle 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 version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2025:0018 advisory.

    Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:

    CVE-2021-3468:
    A flaw was found in avahi in versions 0.6 up to 0.8. The event used to signal the termination of the     client connection on the avahi Unix socket is not correctly handled in the client_work function, allowing     a local attacker to trigger an infinite loop. The highest threat from this vulnerability is to the     availability of the avahi service, which becomes unresponsive after this flaw is triggered.

    CVE-2023-1981:
    A vulnerability was found in the avahi library. This flaw allows an unprivileged user to make a dbus call,     causing the avahi daemon to crash.

Tenable has extracted the preceding description block directly from the Tencent 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 Rocky Linux 8.8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ ciqsa-2026_0335 advisory.

    This advisory aggregates security fixes for the avahi SRPM in CIQ LTS 8.8. It addresses 7 CVEs:
    CVE-2021-3468, CVE-2023-38470, CVE-2023-1981, CVE-2023-38469, CVE-2023-38471, and 2 more.

Tenable has extracted the preceding description block directly from the CIQ 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 SLES15 / openSUSE 15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2023:1993-1 advisory.

    - CVE-2023-1981: Fixed crash in avahi-daemon (bsc#1210328).

Tenable has extracted the preceding description block directly from the SUSE 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-3414 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-3414-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                           Chris Lamb     May 02, 2023                                  https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : avahi     Version        : 0.7-4+deb10u2     CVE ID         : CVE-2023-1981     Debian Bug     : 1034594

    It was discovered that there was a local Denial of Service (DoS)     vulnerability in Avahi, a system that facilitates service discovery     on a local network.

    The avahi-daemon process could have been crashed over the DBus     message bus.

    For Debian 10 buster, this problem has been fixed in version     0.7-4+deb10u2.

    We recommend that you upgrade your avahi packages.

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

    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 this issue but has instead relied only on the application's self-reported version number.

The remote Ubuntu 16.04 ESM / 18.04 ESM host has packages installed that are affected by a vulnerability as referenced in the USN-6129-2 advisory.

    USN-6129-1 fixed a vulnerability in Avahi. This update provides the corresponding update for Ubuntu 14.04     LTS, Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.



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 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3990 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-3990-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                          Adrian Bunk     December 09, 2024                             https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : avahi     Version        : 0.8-5+deb11u3     CVE ID         : CVE-2023-1981 CVE-2023-38469 CVE-2023-38470 CVE-2023-38471                      CVE-2023-38472 CVE-2023-38473     Debian Bug     : 1034594 1054876 1054877 1054878 1054879 1054880

    Multiple vulnerabilities have been fixed in the service discovery system Avahi.

    CVE-2023-1981

        avahi-daemon can be crashed via DBus

    CVE-2023-38469

        Reachable assertion in avahi_dns_packet_append_record

    CVE-2023-38470

        Reachable assertion in avahi_escape_label

    CVE-2023-38471

        Reachable assertion in dbus_set_host_name

    CVE-2023-38472

        Reachable assertion in avahi_rdata_parse

    CVE-2023-38473

        Reachable assertion in avahi_alternative_host_name

    For Debian 11 bullseye, these problems have been fixed in version     0.8-5+deb11u3.

    We recommend that you upgrade your avahi packages.

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

    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 MiracleLinux 8 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2023-7099:03 advisory.

    * avahi: avahi-daemon can be crashed via DBus (CVE-2023-1981)

Tenable has extracted the preceding description block directly from the MiracleLinux 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	名稱	產品	系列	已發布	已更新	嚴重性
178828	Amazon Linux 2 : avahi (ALAS-2023-2161)	Nessus	Amazon Linux Local Security Checks	2023/7/26	2024/12/11	medium
179262	EulerOS Virtualization 2.10.0 : avahi (EulerOS-SA-2023-2553)	Nessus	Huawei Local Security Checks	2023/8/2	2023/8/2	medium
188512	EulerOS Virtualization 2.11.1 : avahi (EulerOS-SA-2023-2716)	Nessus	Huawei Local Security Checks	2024/1/16	2024/1/16	medium
188595	EulerOS Virtualization 2.11.0 : avahi (EulerOS-SA-2023-2747)	Nessus	Huawei Local Security Checks	2024/1/16	2024/1/16	medium
215885	Azure Linux 3.0 Security Update: avahi (CVE-2023-1981)	Nessus	Azure Linux Local Security Checks	2025/2/10	2025/9/15	medium
185873	Oracle Linux 9 : avahi (ELSA-2023-6707)	Nessus	Oracle Linux Local Security Checks	2023/11/16	2025/9/9	medium
239605	TencentOS Server 4: avahi (TSSA-2025:0018)	Nessus	Tencent Local Security Checks	2025/6/16	2025/11/20	medium
357275	Rocky Linux 8.8 [CIQ] Security Update: avahi / avahi-autoipd / avahi-autoipd-debuginfo / avahi-compat-howl / etc Multiple Vulnerabilities (ciqsa-2026_0335)	Nessus	Rocky Linux Local Security Checks	2026/10/1	2026/10/12	medium
174776	SUSE SLES15: avahi / avahi-autoipd / avahi-compat-howl-devel / etc (SUSE-SU-2023:1993-1)	Nessus	SuSE Local Security Checks	2023/4/26	2026/6/25	medium
175045	Debian dla-3414 : avahi-autoipd - security update	Nessus	Debian Local Security Checks	2023/5/3	2025/1/22	medium
178778	Ubuntu 16.04 ESM / 18.04 ESM : Avahi vulnerability (USN-6129-2)	Nessus	Ubuntu Local Security Checks	2023/7/25	2024/10/29	medium
179079	EulerOS Virtualization 2.9.1 : avahi (EulerOS-SA-2023-2508)	Nessus	Huawei Local Security Checks	2023/7/31	2023/7/31	medium
179110	EulerOS Virtualization 2.9.0 : avahi (EulerOS-SA-2023-2521)	Nessus	Huawei Local Security Checks	2023/7/31	2023/7/31	medium
212178	Debian dla-3990 : avahi-autoipd - security update	Nessus	Debian Local Security Checks	2024/12/9	2024/12/9	medium
292139	MiracleLinux 8 : avahi-0.7-21.el8 (AXSA:2023-7099:03)	Nessus	Miracle Linux Local Security Checks	2026/1/20	2026/1/20	medium

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