The remote MiracleLinux 4 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2011-125:02 advisory.

    Kerberos V5 is a trusted-third-party network authentication system, which can improve your network's     security by eliminating the insecure practice of cleartext passwords.
    Security issues fixed with this release:
    CVE-2011-0284     Double free vulnerability in the prepare_error_as function in do_as_req.c in the Key Distribution Center     (KDC) in MIT Kerberos 5 (aka krb5) 1.7 through 1.9, when the PKINIT feature is enabled, allows remote     attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via an e_data     field containing typed data.

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote NewStart CGSL host, running version MAIN 6.06 (SP), has krb5 packages installed that are affected by multiple vulnerabilities:

  - 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)

  - The process_chpw_request function in schpw.c in the password-changing functionality in kadmind in MIT     Kerberos 5 (aka krb5) 1.7 through 1.9 frees an invalid pointer, which allows remote attackers to execute     arbitrary code or cause a denial of service (daemon crash) via a crafted request that triggers an error     condition. (CVE-2011-0285)

  - schpw.c in the kpasswd service in kadmind in MIT Kerberos 5 (aka krb5) before 1.11.3 does not properly     validate UDP packets before sending responses, which allows remote attackers to cause a denial of service     (CPU and bandwidth consumption) via a forged packet that triggers a communication loop, as demonstrated by     krb_pingpong.nasl, a related issue to CVE-1999-0103. (CVE-2002-2443)

  - The (1) ftpd and (2) ksu programs in (a) MIT Kerberos 5 (krb5) up to 1.5, and 1.4.x before 1.4.4, and (b)     Heimdal 0.7.2 and earlier, do not check return codes for setuid calls, which might allow local users to     gain privileges by causing setuid to fail to drop privileges. NOTE: as of 20060808, it is not known     whether an exploitable attack scenario exists for these issues. (CVE-2006-3084)

  - The RPC library in Kerberos 5 1.4 through 1.4.4, and 1.5 through 1.5.1, as used in Kerberos administration     daemon (kadmind) and other products that use this library, calls an uninitialized function pointer in     freed memory, which allows remote attackers to cause a denial of service (crash) and possibly execute     arbitrary code via unspecified vectors. (CVE-2006-6143)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Cameron Meadors discovered that the MIT Kerberos 5 Key Distribution Center (KDC) daemon is vulnerable to a double-free condition if the Public Key Cryptography for Initial Authentication (PKINIT) capability is enabled. This could allow a remote attacker to cause a denial of service.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

An advisory published by the MIT Kerberos team says :

The MIT Kerberos 5 Key Distribution Center (KDC) daemon is vulnerable to a double-free condition if the Public Key Cryptography for Initial Authentication (PKINIT) capability is enabled, resulting in daemon crash or arbitrary code execution (which is believed to be difficult).

An unauthenticated remote attacker can induce a double-free event, causing the KDC daemon to crash (denial of service), or to execute arbitrary code. Exploiting a double-free event to execute arbitrary code is believed to be difficult.

A double-free issue in kdc when PKINIT is enabled allowed remote attackers to crash the daemon or potentially execute arbitrary code (CVE-2011-0284).

The remote Oracle Linux 6 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2011-0356 advisory.

    - add revised upstream patch to fix double-free in KDC while returning       typed-data with errors (CVE-2011-0284, #681564)

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
284085	MiracleLinux 4 : krb5-1.8.2-3.AXS4.6 (AXSA:2011-125:02)	Nessus	Miracle Linux Local Security Checks	2026/1/14	2026/1/14	critical
301200	NewStart CGSL MAIN 6.06 (SP) : krb5 Multiple Vulnerabilities (NS-SA-2026-0007)	Nessus	NewStart CGSL Local Security Checks	2026/3/6	2026/3/9	critical
52682	Ubuntu 9.10 / 10.04 LTS / 10.10 : krb5 vulnerability (USN-1088-1)	Nessus	Ubuntu Local Security Checks	2011/3/16	2019/9/19	high
53443	FreeBSD : krb5 -- MITKRB5-SA-2011-003, KDC vulnerable to double-free when PKINIT enabled (7edac52a-66cd-11e0-9398-5d45f3aa24f0)	Nessus	FreeBSD Local Security Checks	2011/4/15	2021/1/6	high
53744	openSUSE Security Update : krb5 (krb5-4163)	Nessus	SuSE Local Security Checks	2011/5/5	2021/1/14	high
68230	Oracle Linux 6 : krb5 (ELSA-2011-0356)	Nessus	Oracle Linux Local Security Checks	2013/7/12	2024/10/22	critical
75561	openSUSE Security Update : krb5 (krb5-4163)	Nessus	SuSE Local Security Checks	2014/6/13	2021/1/14	high
75883	openSUSE Security Update : krb5 (krb5-4163)	Nessus	SuSE Local Security Checks	2014/6/13	2021/1/14	high

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