There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

  - plugins/preauth/pkinit/pkinit_crypto_openssl.c in MIT Kerberos 5 (aka krb5) through 1.15.2 mishandles
    Distinguished Name (DN) fields, which allows remote attackers to execute arbitrary code or cause a denial
    of service (buffer overflow and application crash) in situations involving untrusted X.509 data, related
    to the get_matching_data and X509_NAME_oneline_ex functions. NOTE: this has security relevance only in use
    cases outside of the MIT Kerberos distribution, e.g., the use of get_matching_data in KDC certauth plugin
    code that is specific to Red Hat. (CVE-2017-15088)

  - An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. There is a variable
    "dbentry->n_key_data" in kadmin/dbutil/dump.c that can store 16-bit data but unknowingly the developer has
    assigned a "u4" variable to it, which is for 32-bit data. An attacker can use this vulnerability to affect
    other artifacts of the database as we know that a Kerberos database dump file contains trusted data.
    (CVE-2018-5709)

  - An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. The pre-defined function "strlen" is
    getting a "NULL" string as a parameter value in plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c in the Key
    Distribution Center (KDC), which allows remote authenticated users to cause a denial of service (NULL
    pointer dereference) via a modified kadmin client. (CVE-2018-5710)

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. There is a variable
    "dbentry->n_key_data" in kadmin/dbutil/dump.c that can store 16-bit data but unknowingly the developer has
    assigned a "u4" variable to it, which is for 32-bit data. An attacker can use this vulnerability to affect
    other artifacts of the database as we know that a Kerberos database dump file contains trusted data.
    (CVE-2018-5709)

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。

  - 在 MIT Kerberos 5 (即 krb5) 到 1.16中發現一個問題。kadmin/dbutil/dump.c 中有一個可儲存 16 位元資料的變數 dbentry->n_key_data但開發人員已在不知情的情況下為其指派了一個適用於 32 位元資料的 u4 變數。攻擊者可利用此弱點來影響資料庫的其他成品因為我們知道 Kerberos 資料庫轉儲存檔案包含受信任的資料。
    (CVE-2018-5709)

請注意，Nessus 依賴供應商報告的套件存在。

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。

  - 在 MIT Kerberos 5也称为 krb5中在 1.16之前版本中发现一个问题。kadmin/dbutil/dump.c 中的变量 dbentry->n_key_data可以存储 16 位数据但开发人员在无意中已为其分配了一个用于 32 位数据的 u4 变量。攻击者可利用此漏洞影响数据库的其他构件因为我们知道 Kerberos 数据库转储文件包含受信任的数据。
    (CVE-2018-5709)

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 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。

  - 1.16までの MIT Kerberos 5別名 krb5で問題が見つかりました。kadmin/dbutil/dump.c に 16 ビットデータを保存できる変数 dbentry->n_key_data がありますが、開発者は意図せず u4 変数を 32 ビットデータ用に割り当てます。Kerberos データベースのダンプファイルに信頼できるデータが含まれていることを知るため、攻撃者はこの脆弱性を利用して、データベースの他のアーチファクトに影響を与えることができます。
    (CVE-2018-5709)

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

  - An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. There is a variable     dbentry->n_key_data in kadmin/dbutil/dump.c that can store 16-bit data but unknowingly the developer has     assigned a u4 variable to it, which is for 32-bit data. An attacker can use this vulnerability to affect     other artifacts of the database as we know that a Kerberos database dump file contains trusted data.
    (CVE-2018-5709)

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

ID	名稱	產品	系列	已發布	已更新	嚴重性
400660	Alpine: multiple krb5 packages: security update to 1.15.2-r2 (deprecated)	Tenable Cloud Security	Alpine Linux Local Security Checks	2023/8/16	2026/7/2	critical
464867	Echo: krb5: security update to 1.20.1-2+deb12u2	Tenable Self-Hosted Container Security	Echo Local Security Checks	2026/10/2	2026/10/2	high
423995	Alpine: multiple krb5 packages: security update to 1.15.3-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	2025/4/4	2026/7/2	critical
423995	Alpine: multiple krb5 packages: security update to 1.15.3-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	2025/4/4	2026/7/2	critical
400660	Alpine: multiple krb5 packages: security update to 1.15.2-r2 (deprecated)	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	2023/8/16	2026/7/2	critical
464867	Echo: krb5: security update to 1.20.1-2+deb12u2	Tenable Cloud Security	Echo Local Security Checks	2026/10/2	2026/10/2	high
251900	Linux Distros 未修補的弱點：CVE-2018-5709	Nessus	Misc.	2025/8/19	2026/9/2	high
251900	Linux Distros 未修补的漏洞：CVE-2018-5709	Nessus	Misc.	2025/8/19	2026/9/2	high
251900	Linux Distros のパッチ未適用の脆弱性: CVE-2018-5709	Nessus	Misc.	2025/8/19	2026/9/2	high
251900	Linux Distros Unpatched Vulnerability : CVE-2018-5709	Nessus	Misc.	2025/8/19	2026/9/2	high

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