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

  - 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 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 vulnerability's impact may range from unexpected application termination to control flow     hijack/memory corruption. The patch is available as a commit in the master branch. (CVE-2023-38703)

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

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。

  - PJSIP は、C、C++、Java、C#、Python の言語の高レベル API を持つ C で記述されたオープンソースのマルチメディア通信ライブラリです。SRTP は、UDP や ICE などの低レベルのメディア転送にスタックされる高レベルのメディア転送です。現在、より高いレベルのトランスポートは、その下位レベルのトランスポートと同期されないため、use-after-free の問題が発生する可能性があります。この脆弱性の影響を受けるのは、SRTP 機能があり (「PJMEDIA_HAS_SRTP」が設定されており)、UDP 以外の基本的なメディア転送を使用するアプリケーションです。
    この脆弱性の影響は、予期しないアプリケーション終了からコントロールフローのハイジャック/メモリ破損まで、多岐にわたります。このパッチは、マスターブランチのコミットとして利用可能です。CVE-2023-38703

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，且供應商未提供可用的修補程式。

  - PJSIP 是以 C 語言撰寫的免費開放原始碼多媒體通訊程式庫具有 C、C++、Java、C# 和 Python 語言的高階 API。SRTP 是較高層級的媒體傳輸，可堆疊在較低層級的媒體傳輸 (如 UDP 和 ICE) 上。目前較高層級的傳輸與其較低層級的傳輸不同步這可能會引入釋放後使用問題。此弱點會影響具有 SRTP 功能 (已設定「PJMEDIA_HAS_SRTP」) 並使用 UDP 以外的基礎媒體傳輸的應用程式。
    此弱點的影響範圍可能從非預期的應用程式終止到控制流程劫持/記憶體損毀。修補程式在主要分支中以認可的形式提供。 (CVE-2023-38703)

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。

  - PJSIP 是用 C 语言编写的免费开源多媒体通信库具有 C、C++、Java、C# 和 Python 语言的高级 API。SRTP 是堆栈在较低级别媒体传输（例如 UDP 和 ICE）之上的更高级别媒体传输。目前较高级别的传输与其较低级别的传输不同步这可能会引入释放后使用问题。此漏洞会影响具有 SRTP 功能（已设置 `PJMEDIA_HAS_SRTP`）并使用底层媒体传输而非 UDP 的应用程序。
    此漏洞的影响范围包括意外应用程序终止、控制流劫持/内存损坏等。修补程序以主分支中的提交形式提供。 (CVE-2023-38703)

请注意，Nessus 依赖供应商报告的程序包是否存在进行判断。

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
226029	Linux Distros Unpatched Vulnerability : CVE-2023-38703	Nessus	Misc.	2025/3/5	2025/8/31	critical
214468	Debian dla-3696 : asterisk - security update	Nessus	Debian Local Security Checks	2025/1/22	2025/1/22	critical
226029	Linux Distros のパッチ未適用の脆弱性: CVE-2023-38703	Nessus	Misc.	2025/3/5	2025/8/31	critical
226029	Linux Distros 未修補的弱點：CVE-2023-38703	Nessus	Misc.	2025/3/5	2025/8/31	critical
226029	Linux Distros 未修补的漏洞：CVE-2023-38703	Nessus	Misc.	2025/3/5	2025/8/31	critical

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