The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3696 advisory.

    -------------------------------------------------------------------------     Debian LTS Advisory DLA-3696-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                      Markus Koschany     December 28, 2023                             https://wiki.debian.org/LTS
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    Package        : asterisk     Version        : 1:16.28.0~dfsg-0+deb10u4     CVE ID         : CVE-2023-37457 CVE-2023-38703 CVE-2023-49294 CVE-2023-49786     Debian Bug     : 1059303 1059032 1059033

    Multiple security vulnerabilities have been discovered in Asterisk, an Open     Source Private Branch Exchange.

    CVE-2023-37457

        The 'update' functionality of the PJSIP_HEADER dialplan function can exceed         the available buffer space for storing the new value of a header. By doing         so this can overwrite memory or cause a crash. This is not externally         exploitable, unless dialplan is explicitly written to update a header based         on data from an outside source. If the 'update' functionality is not used         the vulnerability does not occur.

    CVE-2023-38703

        PJSIP is a free and open source multimedia communication library written in         C with high level API in C, C++, Java, C#, and Python languages. SRTP is a         higher level media transport which is stacked upon a lower level media         transport such as UDP and ICE. Currently a higher level transport is not         synchronized with its lower level transport that may introduce a         use-after-free issue. This vulnerability affects applications that have         SRTP capability (`PJMEDIA_HAS_SRTP` is set) and use underlying media         transport other than UDP. This vulnerabilitys impact may range from         unexpected application termination to control flow hijack/memory         corruption.

    CVE-2023-49294

        It is possible to read any arbitrary file even when the `live_dangerously`         option is not enabled.

    CVE-2023-49786

       Asterisk is susceptible to a DoS due to a race condition in the hello        handshake phase of the DTLS protocol when handling DTLS-SRTP for media        setup. This attack can be done continuously, thus denying new DTLS-SRTP        encrypted calls during the attack. Abuse of this vulnerability may lead to        a massive Denial of Service on vulnerable Asterisk servers for calls that        rely on DTLS-SRTP.

    For Debian 10 buster, these problems have been fixed in version     1:16.28.0~dfsg-0+deb10u4.

    We recommend that you upgrade your asterisk packages.

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

    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     Attachment:
    signature.asc     Description: This is a digitally signed message part

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

  - Asterisk is an open source private branch exchange and telephony toolkit. In Asterisk prior to versions     18.20.1, 20.5.1, and 21.0.1, as well as certified-asterisk prior to 18.9-cert6, it is possible to read any     arbitrary file even when the `live_dangerously` is not enabled. This allows arbitrary files to be read.
    Asterisk versions 18.20.1, 20.5.1, and 21.0.1, as well as certified-asterisk prior to 18.9-cert6, contain     a fix for this issue. (CVE-2023-49294)

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-202412-03 (Asterisk: Multiple Vulnerabilities)

    Multiple vulnerabilities have been discovered in Asterisk. Please review the CVE identifiers referenced     below for details.

Tenable has extracted the preceding description block directly from the Gentoo 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.

Linux/Unix ホストには、ベンダーが提供するパッチが利用できない脆弱性の影響を受ける複数のパッケージがインストールされています。

  - Asterisk は、オープンソースのプライベートブランチ交換およびテレフォニーツールキットです。バージョン 18.20.1、 20.5.1、 21.0.1より前の Asterisk 、および 18.9-cert6 より前のCertified-asterisk では、「live_dangerously」が有効化されていないときでも任意のファイルを読み取ることが可能です。これにより、任意のファイルを読み取ることができます。
    Asteriskのバージョン 18.20.1、 20.5.1、 21.0.1]、および18.9-cert6より前のCertified-asteriskには、この問題の修正プログラムが含まれています。CVE-2023-49294

Nessus は、ベンダーによって報告されたパッケージの存在に依存していることに注意してください。

Linux/Unix 主機上安裝了一個或多個受到弱點影響的套件，且廠商未提供可用的修補程式。

  - Asterisk 是一種開放原始碼的 private branch Exchange 和電話語音工具組。在 18.20.1、 20.5.1和 21.0.1版之前的 Asterisk 以及 18.9-cert6 之前的 Certified-asterisk 版中即使未啟用 `live_dangerously` 還是可能讀取任何任意檔案。這會允許讀取任意檔案。
    Asterisk 的 18.20.1、 20.5.1和 21.0.1版以及certified-asterisk 18.9-cert6 之前的版本均包含此問題的修正。 (CVE-2023-49294)

請注意，Nessus 的判定取決於廠商所報告的套件是否存在。

Linux/Unix 主机中安装的一个或多个程序包受到一个漏洞影响，而供应商没有提供补丁程序。

  - Asterisk 是一个开源私有分支交换和电话工具包。在低于版本 18.20.1、 20.5.1和 21.0.1的 Asterisk 中以及低于 18.9-cert6 的 Certified-asterisk 中即使未启用 `live_dangerous` 也可读取任何任意文件。允许读取任意文件。
    Asterisk 版本 18.20.1、 20.5.1和 21.0.1以及 18.9-cert6 之前的 Certified-asterisk 中包含针对此问题的补丁。 (CVE-2023-49294)

请注意，Nessus 依赖供应商报告的程序包是否存在进行判断。

远程主机受到 GLSA-202412-03 中所述漏洞的影响（Asterisk：多个漏洞）

    在 Asterisk 中发现多个漏洞。请检查下方引用的 CVE 标识符以了解详细信息。

Tenable 已直接从 Gentoo Linux 安全公告中提取上述描述块。

请注意，Nessus 尚未测试这些问题，而是只依据应用程序自我报告的版本号进行判断。

遠端主機受到 GLSA-202412-03 中所述的弱點影響 (Asterisk：多個弱點)

    在 Asterisk 中發現多個弱點。如需詳細資訊，請檢閱下方提及的 CVE 識別碼。

Tenable 已直接從 Gentoo Linux 安全公告擷取前置描述區塊。

請注意，Nessus 並未測試這些問題，而是僅依據應用程式自我報告的版本號碼作出判斷。

ID	名稱	產品	系列	已發布	已更新	嚴重性
214468	Debian dla-3696 : asterisk - security update	Nessus	Debian Local Security Checks	2025/1/22	2025/1/22	critical
252337	Linux Distros Unpatched Vulnerability : CVE-2023-49294	Nessus	Misc.	2025/8/20	2025/8/20	high
212188	GLSA-202412-03 : Asterisk: Multiple Vulnerabilities	Nessus	Gentoo Local Security Checks	2024/12/9	2024/12/9	critical
252337	Linux Distros のパッチ未適用の脆弱性: CVE-2023-49294	Nessus	Misc.	2025/8/20	2025/8/20	high
252337	Linux Distros 未修補的弱點：CVE-2023-49294	Nessus	Misc.	2025/8/20	2025/8/20	high
252337	Linux Distros 未修补的漏洞：CVE-2023-49294	Nessus	Misc.	2025/8/20	2025/8/20	high
212188	GLSA-202412-03：Asterisk：多个漏洞	Nessus	Gentoo Local Security Checks	2024/12/9	2024/12/9	critical
212188	GLSA-202412-03：Asterisk：多個弱點	Nessus	Gentoo Local Security Checks	2024/12/9	2024/12/9	critical

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