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。

  - 攻击者通过发布和查询构建的区域可造成在负面和攻击性 NSEC(3) 缓存中分配大型条目。 (CVE-2026-33258)

请注意，Nessus 依赖供应商报告的程序包是否存在进行判断。

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。

  - 藉由發布及查詢特製區域攻擊者可造成在消極和積極 NSEC(3) 快取中配置大型項目。 (CVE-2026-33258)

請注意，Nessus 的判定取決於廠商所報告的套件是否存在。

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。

  - 細工されたゾーンを公開およびクエリすることで、攻撃者がネガティブおよびアグレッシブな NSEC(3) キャッシュで大きなエントリの割り当てを引き起こす可能性があります。CVE-2026-33258

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 Debian 13 host has a package installed that is affected by multiple vulnerabilities as referenced in the dsa-6234 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-6234-1                   security@debian.org     https://www.debian.org/security/                       Moritz Muehlenhoff     April 28, 2026                        https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : pdns-recursor     CVE ID         : CVE-2026-33257 CVE-2026-33258 CVE-2026-33259                      CVE-2026-33260 CVE-2026-33261 CVE-2026-33600                      CVE-2026-33601

    Multiple vulnerabiliites have been discovered in PDNS Recursor, a     resolving name server, which could result in denial of service.

    For the stable distribution (trixie), these problems have been fixed in     version 5.2.9-0+deb13u1.

    We recommend that you upgrade your pdns-recursor packages.

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

    Further information about Debian Security Advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://www.debian.org/security/

    Mailing list: debian-security-announce@lists.debian.org

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.

  - By publishing and querying a crafted zone an attacker can cause allocation of large entries in the     negative and aggressive NSEC(3) caches. (CVE-2026-33258)

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

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
309863	Linux Distros 未修补的漏洞：CVE-2026-33258	Nessus	Misc.	2026/4/23	2026/4/29	high
309863	Linux Distros 未修補的弱點：CVE-2026-33258	Nessus	Misc.	2026/4/23	2026/4/29	high
309863	Linux Distros のパッチ未適用の脆弱性: CVE-2026-33258	Nessus	Misc.	2026/4/23	2026/4/29	high
310795	Debian dsa-6234 : pdns-recursor - security update	Nessus	Debian Local Security Checks	2026/4/29	2026/4/29	high
309863	Linux Distros Unpatched Vulnerability : CVE-2026-33258	Nessus	Misc.	2026/4/23	2026/4/29	high

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