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
    -------------------------------------------------------------------------

    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.

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。Asterisk バージョン 18.20.0 以前、 20.5.0 以前、および 21.0.0certifed-asterisk 18.9-cert5 以前とともに、PJSIP_HEADER dialplan 関数の「更新」機能が、ヘッダーの新しい値を保存するために利用可能なバッファスペースを超える可能性があります。これにより、メモリが上書きされたり、クラッシュが引き起こされたりする可能性があります。これは、外部ソースからのデータに基づいてヘッダーを更新するように dialplan が明示的に記述されていない限り、外部から悪用できません。「更新」機能を使用しない場合、脆弱性は発生しません。パッチは、a1ca0268254374b515fa5992f01340f7717113fa コミットで入手できます。CVE-2023-37457

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。

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.

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 versions 18.20.0 and     prior, 20.5.0 and prior, and 21.0.0; as well as ceritifed-asterisk 18.9-cert5 and prior, 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. A patch is available     at commit a1ca0268254374b515fa5992f01340f7717113fa. (CVE-2023-37457)

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

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。

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 Asterisk 版本 18.20.0 和较早版本、 20.5.0 和较早版本以及 21.0.0中在 ceritifed-asterisk 18.9-cert5 和之前版本中PJSIP_HEADER dialplan 函数的“update”功能可能会超出用于存储标头新值的可用缓冲区空间。这样做可能覆盖内存或导致崩溃。除非明确写入 dialplan 以根据外部来源的数据更新标头否则此漏洞无法从外部利用。如果不使用 'update' 功能则不会出现此漏洞。已提供修补程序提交 a1ca0268254374b515fa5992f01340f7717113fa。 (CVE-2023-37457)

请注意，Nessus 依赖供应商报告的程序包是否存在进行判断。

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。

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 Asterisk 版本 18.20.0 和之前版本、 20.5.0 和之前版本以及 21.0.0中與 ceritifed-asterisk 18.9-cert5 和之前版本一樣PJSIP_HEADER dialplan 函式的「更新」功能會超出儲存標頭新值的可用緩衝區空間。如此可能會覆寫記憶體或造成當機。這不會遭到外部惡意利用除非 dialplan 已明確寫入以外部來源的資料為基礎更新標頭。如果未使用「更新」功能，則不會發生此弱點。修補程式可在提交 a1ca0268254374b515fa5992f01340f7717113fa 時取得。 (CVE-2023-37457)

請注意，Nessus 的判定取決於廠商所報告的套件是否存在。

ID	Name	Product	Family	Published	Updated	Severity
214468	Debian dla-3696 : asterisk - security update	Nessus	Debian Local Security Checks	1/22/2025	1/22/2025	critical
252354	Linux Distros のパッチ未適用の脆弱性: CVE-2023-37457	Nessus	Misc.	8/20/2025	8/20/2025	high
212188	GLSA-202412-03 : Asterisk: Multiple Vulnerabilities	Nessus	Gentoo Local Security Checks	12/9/2024	12/9/2024	critical
252354	Linux Distros Unpatched Vulnerability : CVE-2023-37457	Nessus	Misc.	8/20/2025	8/20/2025	high
212188	GLSA-202412-03：Asterisk：多个漏洞	Nessus	Gentoo Local Security Checks	12/9/2024	12/9/2024	critical
252354	Linux Distros 未修补的漏洞：CVE-2023-37457	Nessus	Misc.	8/20/2025	8/20/2025	high
212188	GLSA-202412-03：Asterisk：多個弱點	Nessus	Gentoo Local Security Checks	12/9/2024	12/9/2024	critical
252354	Linux Distros 未修補的弱點：CVE-2023-37457	Nessus	Misc.	8/20/2025	8/20/2025	high

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