The remote host is running a version of Mac OS X 10.4 which is older than version 10.4.11 or a version of Mac OS X 10.3 which does not have Security Update 2007-008 applied. 

This update contains several security fixes for the following programs :

 - Flash Player Plugin
 - AppleRAID
 - BIND
 - bzip2
 - CFFTP
 - CFNetwork
 - CoreFoundation
 - CoreText
 - Kerberos
 - Kernel
 - remote_cmds
 - Networking
 - NFS
 - NSURL
 - Safari
 - SecurityAgent
 - WebCore
 - WebKit

It was discovered that a buffer overflow of the RPC library of the MIT Kerberos reference implementation allows the execution of arbitrary code.

The oldstable distribution (sarge) is not affected by this problem.

An updated nfs-utils-lib package to correct a security flaw is now available for Red Hat Enterprise Linux 4.

This update has been rated as having important security impact by the Red Hat Security Response Team.

The nfs-utils-lib package contains support libraries that are needed by the commands and daemons of the nfs-utils package.

Tenable Network Security discovered a stack-based buffer overflow flaw in the RPC library used by nfs-utils-lib. A remote unauthenticated attacker who can access an application linked against nfs-utils-lib could trigger this flaw and cause the application to crash. On Red Hat Enterprise Linux 4 it is not possible to exploit this flaw to run arbitrary code as the overflow is blocked by FORTIFY_SOURCE.
(CVE-2007-3999)

Users of nfs-utils-lib are advised to upgrade to this updated package, which contains a backported patch that resolves this issue.

An updated nfs-utils-lib package to correct two security flaws is now available for Red Hat Enterprise Linux 5.

This update has been rated as having important security impact by the Red Hat Security Response Team.

The nfs-utils-lib package contains support libraries that are needed by the commands and daemons of the nfs-utils package.

The updated nfs-utils package fixes the following vulnerabilities :

Tenable Network Security discovered a stack-based buffer overflow flaw in the RPC library used by nfs-utils-lib. A remote unauthenticated attacker who can access an application linked against nfs-utils-lib could trigger this flaw and cause the application to crash. On Red Hat Enterprise Linux 5 it is not possible to exploit this flaw to run arbitrary code as the overflow is blocked by FORTIFY_SOURCE.
(CVE-2007-3999)

Tony Ernst from SGI has discovered a flaw in the way nfsidmap maps NFSv4 unknown uids. If an unknown user ID is encountered on an NFSv4 mounted filesystem, the files will default to being owned by 'root' rather than 'nobody'. (CVE-2007-4135)

Users of nfs-utils-lib are advised to upgrade to this updated package, which contains backported patches to resolve these issues.

This update of krb5 fixes two bugs in kadmind that can be used to execute arbitrary code remotely. (CVE-2007-3999, CVE-2007-4000)

The remote MiracleLinux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2008-345:03 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.
    - add preliminary patch to fix use of uninitialized pointer / double-free in KDC     (CVE-2008-0062,CVE-2008-0063)
    - add backported patch to fix use-after-free in libgssapi_krb5 (CVE-2007-5901)
    - add backported patch to fix double-free in libgssapi_krb5 (CVE-2007-5971)
    - add preliminary patch to fix incorrect handling of high-numbered descriptors in the RPC library     (CVE-2008-0947)
    - fix storage of delegated krb5 credentials when they've been wrapped up in spnego
    - return a delegated credential handle even if the application didn't pass a location to store the flags     which would be used to indicate that credentials were delegated
    - add patch to fall back to TCP kpasswd servers for kdc-unreachable, can't-resolve-server, and response-     too-big errors
    - use the right sequence numbers when generating password-set/change requests for kpasswd servers after     the first one
    - backport from 1.6.3 to initialize a library-allocated get_init_creds_opt structure the same way we would     one which was allocated by the calling application, to restore kinit's traditional behavior of doing a     password change right when it detects an expired password
    - ftpd: also do PAM session and credential management when ftp clients use strong authentication
    - update to revised patch for CVE-2007-3999
    - fix omission of files created by the db2 plugin when labeling
    - make krb5-workstation depend on the PAM configuration file used by login.krb5
    - fix omission of kadmin log file when labeling
    - add preliminary patch to fix buffer overflow in rpcsec_gss implementation in libgssrpc (CVE-2007-3999)     and write through uninitialized pointer in kadmind (CVE-2007-4000)
    - kdc: default to listening for TCP clients as well
    - login: change to the user's home directory after dropping privileges, not before
    - turn off the ldap features
    - add a patch to allow applications to try to use a key with kvno=0, if found, in place of the right     version for a request
    - incorporate fixes for MITKRB5-SA-2007-004 (CVE-2007-2442,CVE-2007-2443) and MITKRB5-SA-2007-005     (CVE-2007-2798)
    - reintroduce missing %postun for the non-split_workstation case
    - add missing pam-devel build requirement, force selinux-or-fail build
    - label all files at creation-time according to the SELinux policy
    - perform PAM account / session management in krshd
    - perform PAM authentication and account / session management in ftpd
    - perform PAM authentication, account / session management, and password- changing in login.krb5
    - preprocess kerberos.ldif into a format FDS will like better, and include that as a doc file as well
    - switch man pages to being generated with the right paths in them
    - drop old, incomplete SELinux patch
    - add patch from Greg Hudson to make srvtab routines report missing-file errors at same point that keytab     routines do
    - pull patch from svn to undo unintentional chattiness in ftp
    - pull patch from svn to handle NULL krb5_get_init_creds_opt structures better in a couple of places where     they're expected
    - update to 1.6.1
    - drop no-longer-needed patches for CVE-2007-0956,CVE-2007-0957,CVE-2007-1216
    - drop patch for sendto bug in 1.6, fixed in 1.6.1
    - kadmind.init: don't fail outright if the default principal database isn't there if it looks like we     might be using the kldap plugin
    - kadmind.init: attempt to extract the key for the host-specific kadmin service when we try to create the     keytab
    - omit dependent libraries from the krb5-config --libs output, as using shared libraries (no more static     libraries) makes them unnecessary and they're not part of the libkrb5 interface (strips out libkeyutils,     libresolv, libdl)
    - pull in keyutils as a build requirement to get the KEYRING: ccache type, because we've merged
    - fix an uninitialized length value which could cause a crash when parsing key data coming from a     directory server
    - correct a typo in the krb5.conf man page (ldap_server->ldap_servers)
    - move the default acl_file, dict_file, and admin_keytab settings to the part of the default/example     kdc.conf where they'll actually have an effect
    - add patch to correct unauthorized access via krb5-aware telnetdaemon (CVE-2007-0956)
    - add patch to fix buffer overflow in krb5kdc and kadmind(CVE-2007-0957)
    - add patch to fix double-free in kadmind (CVE-2007-1216)
    - back out buildrequires: keyutils-libs-devel for now
    - add buildrequires: on keyutils-libs-devel to enab

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

Details :

Tenable Network Security discovered a stack-based buffer overflow flaw in the RPC library used by nfs-utils-lib. A remote unauthenticated attacker who can access an application linked against nfs-utils-lib could trigger this flaw and cause the application to crash. On Red Hat Enterprise Linux 5 it is not possible to exploit this flaw to run arbitrary code as the overflow is blocked by FORTIFY_SOURCE.
(CVE-2007-3999)

Tony Ernst from SGI has discovered a flaw in the way nfsidmap maps NFSv4 unknown uids. If an unknown user ID is encountered on an NFSv4 mounted filesystem, the files will default to being owned by 'root' rather than 'nobody'. (CVE-2007-4135)

From Red Hat Security Advisory 2007:0913 :

An updated nfs-utils-lib package to correct a security flaw is now available for Red Hat Enterprise Linux 4.

This update has been rated as having important security impact by the Red Hat Security Response Team.

The nfs-utils-lib package contains support libraries that are needed by the commands and daemons of the nfs-utils package.

Tenable Network Security discovered a stack-based buffer overflow flaw in the RPC library used by nfs-utils-lib. A remote unauthenticated attacker who can access an application linked against nfs-utils-lib could trigger this flaw and cause the application to crash. On Red Hat Enterprise Linux 4 it is not possible to exploit this flaw to run arbitrary code as the overflow is blocked by FORTIFY_SOURCE.
(CVE-2007-3999)

Users of nfs-utils-lib are advised to upgrade to this updated package, which contains a backported patch that resolves this issue.

A stack-based buffer overflow vulnerability was discovered in the RPC library used by Kerberos' kadmind program by Tenable Network Security.
A remote unauthenticated user who could access kadmind would be able to trigger the flaw and cause it to crash (CVE-2007-3999). This issue is only applicable to Kerberos 1.4 and higher.

Garrett Wollman found an uninitialized pointer vulnerability in kadmind which a remote unauthenticated attacker able to access kadmind could exploit to cause kadmind to crash (CVE-2007-4000). This issue is only applicable to Kerberos 1.5 and higher.

Update :

The MIT Kerberos Team found a problem with the originally published patch for CVE-2007-3999. A remote unauthenticated attacker able to access kadmind could trigger this flaw and cause kadmind to crash.

Updated packages have been patched to prevent these issues.

A stack-based buffer overflow vulnerability was discovered in the RPCSEC_GSS RPC library by Tenable Network Security that could potentially allow for the execution of arbitrary code.

Updated packages have been patched to prevent these issues.

It was discovered that the libraries handling RPCSEC_GSS did not correctly validate the size of certain packet structures. An unauthenticated remote user could send a specially crafted request and execute arbitrary code with root privileges.

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.

The remote host is affected by the vulnerability described in GLSA-200709-01 (MIT Kerberos 5: Multiple vulnerabilities)

    A stack-based buffer overflow (CVE-2007-3999) has been reported in     svcauth_gss_validate() of the RPC library of kadmind. Another     vulnerability (CVE-2007-4000) has been found in     kadm5_modify_policy_internal(), which does not check the return values     of krb5_db_get_policy() correctly.
  Impact :

    The RPC related vulnerability can be exploited by a remote     unauthenticated attacker to execute arbitrary code with root privileges     on the host running kadmind. The second vulnerability requires the     remote attacker to be authenticated and to have 'modify policy'     privileges. It could then also allow for the remote execution of     arbitrary code.
  Workaround :

    There is no known workaround at this time.

The remote MiracleLinux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2008-153:02 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.
    - add preliminary patch to fix use of uninitialized pointer / double-free in KDC     (CVE-2008-0062,CVE-2008-0063)
    - add backported patch to fix use-after-free in libgssapi_krb5 (CVE-2007-5901)
    - add backported patch to fix double-free in libgssapi_krb5 (CVE-2007-5971)
    - add preliminary patch to fix incorrect handling of high-numbered descriptors in the RPC library     (CVE-2008-0947)
    - fix storage of delegated krb5 credentials when they've been wrapped up in spnego
    - return a delegated credential handle even if the application didn't pass a location to store the flags     which would be used to indicate that credentials were delegated
    - add patch to fall back to TCP kpasswd servers for kdc-unreachable, can't-resolve-server, and response-     too-big errors
    - use the right sequence numbers when generating password-set/change requests for kpasswd servers after     the first one
    - backport from 1.6.3 to initialize a library-allocated get_init_creds_opt structure the same way we would     one which was allocated by the calling application, to restore kinit's traditional behavior of doing a     password change right when it detects an expired password
    - ftpd: also do PAM session and credential management when ftp clients use strong authentication
    - update to revised patch for CVE-2007-3999
    - fix omission of files created by the db2 plugin when labeling
    - make krb5-workstation depend on the PAM configuration file used by login.krb5
    - fix omission of kadmin log file when labeling
    - add preliminary patch to fix buffer overflow in rpcsec_gss implementation in libgssrpc (CVE-2007-3999)     and write through uninitialized pointer in kadmind (CVE-2007-4000)
    - kdc: default to listening for TCP clients as well
    - login: change to the user's home directory after dropping privileges, not before
    - turn off the ldap features
    - add a patch to allow applications to try to use a key with kvno=0, if found, in place of the right     version for a request
    - incorporate fixes for MITKRB5-SA-2007-004 (CVE-2007-2442,CVE-2007-2443) and MITKRB5-SA-2007-005     (CVE-2007-2798)
    - reintroduce missing %postun for the non-split_workstation case
    - add missing pam-devel build requirement, force selinux-or-fail build
    - label all files at creation-time according to the SELinux policy
    - perform PAM account / session management in krshd
    - perform PAM authentication and account / session management in ftpd
    - perform PAM authentication, account / session management, and password- changing in login.krb5
    - preprocess kerberos.ldif into a format FDS will like better, and include that as a doc file as well
    - switch man pages to being generated with the right paths in them
    - drop old, incomplete SELinux patch
    - add patch from Greg Hudson to make srvtab routines report missing-file errors at same point that keytab     routines do
    - pull patch from svn to undo unintentional chattiness in ftp
    - pull patch from svn to handle NULL krb5_get_init_creds_opt structures better in a couple of places where     they're expected
    - update to 1.6.1
    - drop no-longer-needed patches for CVE-2007-0956,CVE-2007-0957,CVE-2007-1216
    - drop patch for sendto bug in 1.6, fixed in 1.6.1
    - kadmind.init: don't fail outright if the default principal database isn't there if it looks like we     might be using the kldap plugin
    - kadmind.init: attempt to extract the key for the host-specific kadmin service when we try to create the     keytab
    - omit dependent libraries from the krb5-config --libs output, as using shared libraries (no more static     libraries) makes them unnecessary and they're not part of the libkrb5 interface (strips out libkeyutils,     libresolv, libdl)
    - pull in keyutils as a build requirement to get the KEYRING: ccache type, because we've merged
    - fix an uninitialized length value which could cause a crash when parsing key data coming from a     directory server
    - correct a typo in the krb5.conf man page (ldap_server->ldap_servers)
    - move the default acl_file, dict_file, and admin_keytab settings to the part of the default/example     kdc.conf where they'll actually have an effect
    - add patch to correct unauthorized access via krb5-aware telnetdaemon (CVE-2007-0956)
    - add patch to fix buffer overflow in krb5kdc and kadmind(CVE-2007-0957)
    - add patch to fix double-free in kadmind (CVE-2007-1216)
    - back out buildrequires: keyutils-libs-devel for now
    - add buildrequires: on keyutils-libs-devel to enab

Tenable has extracted the preceding description block directly from the MiracleLinux 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 remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2007-0858 advisory.

    [1.5-28]
     - add preliminary patch to fix buffer overflow in rpcsec_gss implementation        in libgssrpc (#250973, CVE-2007-3999) and write through uninitialized        pointer in kadmind (#250976, CVE-2007-4000)

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

Note that Nessus has not tested for these issues 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
28212	Mac OS X < 10.4.11 Multiple Vulnerabilities (Security Update 2007-008)	Nessus	MacOS X Local Security Checks	2007/11/14	2024/5/28	critical
25974	Debian DSA-1367-1 : krb5 - buffer overflow	Nessus	Debian Local Security Checks	2007/9/5	2021/1/4	critical
26112	RHEL 4 : nfs-utils-lib (RHSA-2007:0913)	Nessus	Red Hat Local Security Checks	2007/9/24	2021/1/14	critical
26907	RHEL 5 : nfs-utils-lib (RHSA-2007:0951)	Nessus	Red Hat Local Security Checks	2007/10/3	2021/1/14	critical
27310	openSUSE 10 Security Update : krb5 (krb5-4191)	Nessus	SuSE Local Security Checks	2007/10/17	2021/1/14	critical
284373	MiracleLinux 3 : krb5-1.6.1-17AXS3.1 (AXSA:2008-345:03)	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
43655	CentOS 5 : nfs-utils-lib (CESA-2007:0951)	Nessus	CentOS Local Security Checks	2010/1/6	2021/1/4	critical
60260	Scientific Linux Security Update : nfs-utils-lib on SL5.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	2012/8/1	2021/1/14	critical
67575	Oracle Linux 4 : nfs-utils-lib (ELSA-2007-0913)	Nessus	Oracle Linux Local Security Checks	2013/7/12	2021/1/14	critical
26006	Mandrake Linux Security Advisory : krb5 (MDKSA-2007:174-1)	Nessus	Mandriva Local Security Checks	2007/9/7	2021/1/6	critical
26048	Mandrake Linux Security Advisory : librpcsecgss (MDKSA-2007:181)	Nessus	Mandriva Local Security Checks	2007/9/14	2021/1/6	critical
28115	Ubuntu 6.06 LTS / 6.10 / 7.04 : krb5, librpcsecgss vulnerability (USN-511-1)	Nessus	Ubuntu Local Security Checks	2007/11/10	2021/1/19	critical
26041	GLSA-200709-01 : MIT Kerberos 5: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	2007/9/14	2021/1/6	critical
284120	MiracleLinux 3 : krb5-1.6.1-17AXS3.1 (AXSA:2008-153:02)	Nessus	Miracle Linux Local Security Checks	2026/1/14	2026/1/14	critical
67562	Oracle Linux 5 : Important: / krb5 (ELSA-2007-0858)	Nessus	Oracle Linux Local Security Checks	2013/7/12	2024/10/22	critical

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