A remote attacker may be able to make kadmind free an invalid pointer, leading to a crash of the service (CVE-2011-0285).

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.

The remote MiracleLinux 4 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2011-157:03 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-2011-0285     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.

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.

An advisory published by the MIT Kerberos team says :

The password-changing capability of the MIT krb5 administration daemon (kadmind) has a bug that can cause it to attempt to free() an invalid pointer under certain error conditions. This can cause the daemon to crash or induce the execution of arbitrary code (which is believed to be difficult). No exploit that executes arbitrary code is known to exist, but it is easy to trigger a denial of service manually.

Some platforms detect attempted freeing of invalid pointers and protectively terminate the process, preventing arbitrary code execution on those platforms.

A vulnerability has been found and corrected in krb5 :

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).

The updated packages have been patched to correct this issue.

This update incorporates the upstream patches to fix an attempt to free an invalid pointer in kadmind (MITKRB5-SA-2011-004).

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

The remote Oracle Linux 6 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2011-0447 advisory.

    [1.8.2-3.7]
    - kadmind: add upstream patch to fix free() on an invalid pointer (#696341,       MITKRB5-SA-2011-004, CVE-2011-0285)

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
75562	openSUSE Security Update : krb5 (openSUSE-SU-2011:0348-1)	Nessus	SuSE Local Security Checks	2014/6/13	2021/1/14	critical
75884	openSUSE Security Update : krb5 (openSUSE-SU-2011:0348-1)	Nessus	SuSE Local Security Checks	2014/6/13	2021/1/14	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
284098	MiracleLinux 4 : krb5-1.8.2-3.AXS4.7 (AXSA:2011-157:03)	Nessus	Miracle Linux Local Security Checks	2026/1/14	2026/1/14	critical
53442	FreeBSD : krb5 -- MITKRB5-SA-2011-004, kadmind invalid pointer free() [CVE-2011-0285] (6a3c3e5c-66cb-11e0-a116-c535f3aa24f0)	Nessus	FreeBSD Local Security Checks	2011/4/15	2021/1/6	critical
53538	Mandriva Linux Security Advisory : krb5 (MDVSA-2011:077)	Nessus	Mandriva Local Security Checks	2011/4/23	2021/1/6	critical
53555	Fedora 14 : krb5-1.8.2-10.fc14 (2011-5345)	Nessus	Fedora Local Security Checks	2011/4/26	2021/1/11	critical
68256	Oracle Linux 6 : krb5 (ELSA-2011-0447)	Nessus	Oracle Linux Local Security Checks	2013/7/12	2024/10/23	critical

检测

插件搜索

critical

critical

critical

critical

critical

critical

critical

critical