SunOS 5.8_x86: rpcsec_gss patch.
Date this patch was last updated by Sun : Oct/19/07

It was discovered that a buffer overflow of the library for secure RPC communication over the rpcsec_gss protocol allows the execution of arbitrary code.

The oldstable distribution (sarge) doesn't contain librpcsecgss.

Updated krb5 packages that correct a security flaw are 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.

Kerberos is a network authentication system which allows clients and servers to authenticate to each other through use of symmetric encryption and a trusted third party, the KDC. kadmind is the KADM5 administration server.

The MIT Kerberos Team discovered a problem with the originally published patch for svc_auth_gss.c (CVE-2007-3999). A remote unauthenticated attacker who can access kadmind could trigger this flaw and cause kadmind 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-2007-4743)

This issue did not affect the versions of Kerberos distributed with Red Hat Enterprise Linux 2.1, 3, or 4.

Users of krb5-server are advised to update to these erratum packages which contain a corrected backported fix for this issue.

The remote host is affected by the vulnerability described in GLSA-200710-01 (RPCSEC_GSS library: Buffer overflow)

    A stack based buffer overflow has been discovered in the     svcauth_gss_validate() function in file lib/rpc/svc_auth_gss.c when     processing an overly long string in a RPC message.
  Impact :

    A remote attacker could send a specially crafted RPC request to an     application relying on this library, e.g NFSv4 or Kerberos     (GLSA-200709-01), resulting in the execution of arbitrary code with the     privileges of the user running the application.
  Workaround :

    There is no known workaround at this time.

This update incorporates fixes for a stack overflow in the rpcsec_gss implementation in libgssrpc (CVE-2007-3999) and a potential write through an uninitialized pointer in kadmind (CVE-2007-4000).

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 MiracleLinux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2007-01:01 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.
    A stack buffer overflow flaw is discovered in the RPC library used by     kadmind. An unauthenticated remote user may be able to cause a host     running kadmind to execute arbitrary code.(CVE-2007-3999)     An uninitialized pointer flaw is discovered in kadmind.An     authenticated user with modify policy privilege may be able to     cause a host running kadmind to execute arbitrary code.(CVE-2007-4000)

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.

SunOS 5.8: rpcsec_gss patch.
Date this patch was last updated by Sun : Oct/19/07

Updated krb5 packages that fix two security flaws are 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.

Kerberos is a network authentication system which allows clients and servers to authenticate to each other through use of symmetric encryption and a trusted third party, the KDC. kadmind is the KADM5 administration server.

Tenable Network Security discovered a stack-based buffer overflow flaw in the RPC library used by kadmind. A remote unauthenticated attacker who can access kadmind could trigger this flaw and cause kadmind 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)

Garrett Wollman discovered an uninitialized pointer flaw in kadmind. A remote unauthenticated attacker who can access kadmind could trigger this flaw and cause kadmind to crash. (CVE-2007-4000)

These issues did not affect the versions of Kerberos distributed with Red Hat Enterprise Linux 2.1, 3, or 4.

Users of krb5-server are advised to update to these erratum packages which contain backported fixes to correct these issues.

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.

SunOS 5.10: rpcsec patch.
Date this patch was last updated by Sun : Oct/12/07

This update fixes a security problem in the librpcsecgss library used by NFSv4 also found in krb5. A invalid packet could underflow and potentially cause memory corruption and code execution.
(CVE-2007-3999)

Tenable Network Security discovered a stack-based buffer overflow flaw in the RPC library used by kadmind. A remote unauthenticated attacker who can access kadmind could trigger this flaw and cause kadmind 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)

Garrett Wollman discovered an uninitialized pointer flaw in kadmind. A remote unauthenticated attacker who can access kadmind could trigger this flaw and cause kadmind to crash. (CVE-2007-4000)

The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2007-0951 advisory.

    [1.0.8-7.2.z2]
     - Updated libnfsidmap to -17 to fix a security issue (bz 254041)

     [1.0.8-7.2.z1]
     -  Fixed RPC library buffer overflow (bz 265061)

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.

The remote NewStart CGSL host, running version MAIN 6.06, 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.

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

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
25652	Solaris 8 (x86) : 126929-02	Nessus	Solaris Local Security Checks	2007/7/2	2021/1/14	critical
26029	Debian DSA-1368-1 : librpcsecgss - buffer overflow	Nessus	Debian Local Security Checks	2007/9/14	2021/1/4	critical
26052	RHEL 5 : krb5 (RHSA-2007:0892)	Nessus	Red Hat Local Security Checks	2007/9/14	2021/1/14	critical
26941	GLSA-200710-01 : RPCSEC_GSS library: Buffer overflow	Nessus	Gentoo Local Security Checks	2007/10/9	2021/1/6	critical
27744	Fedora 7 : krb5-1.6.1-3.fc7 (2007-2017)	Nessus	Fedora Local Security Checks	2007/11/6	2021/1/11	critical
284244	MiracleLinux 3 : krb5-1.5-29 (AXSA:2007-01:01)	Nessus	Miracle Linux Local Security Checks	2026/1/14	2026/1/14	critical
25650	Solaris 8 (sparc) : 126928-02	Nessus	Solaris Local Security Checks	2007/7/2	2021/1/14	critical
25987	RHEL 5 : krb5 (RHSA-2007:0858)	Nessus	Red Hat Local Security Checks	2007/9/5	2021/1/14	critical
26077	CentOS 4 : nfs-utils-lib (CESA-2007:0913)	Nessus	CentOS Local Security Checks	2007/9/24	2021/1/4	critical
26162	Solaris 10 (sparc) : 126661-02	Nessus	Solaris Local Security Checks	2007/9/25	2021/1/14	critical
28176	openSUSE 10 Security Update : librpcsecgss (librpcsecgss-4600)	Nessus	SuSE Local Security Checks	2007/11/12	2021/1/14	critical
43650	CentOS 5 : krb5 (CESA-2007:0858)	Nessus	CentOS Local Security Checks	2010/1/6	2021/1/4	critical
43652	CentOS 5 : krb5 (CESA-2007:0892)	Nessus	CentOS Local Security Checks	2010/1/6	2021/1/4	critical
60248	Scientific Linux Security Update : krb5 on SL5.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	2012/8/1	2021/1/14	critical
67582	Oracle Linux 5 : Important: / nfs-utils-lib (ELSA-2007-0951)	Nessus	Oracle Linux Local Security Checks	2013/7/12	2024/10/22	critical
266225	NewStart CGSL MAIN 6.06 : krb5 Multiple Vulnerabilities (NS-SA-2025-0215)	Nessus	NewStart CGSL Local Security Checks	2025/9/30	2025/10/1	critical
29494	SuSE 10 Security Update : Kerberos (ZYPP Patch Number 4192)	Nessus	SuSE Local Security Checks	2007/12/13	2021/1/14	critical
29510	SuSE 10 Security Update : librpcsecgss (ZYPP Patch Number 4601)	Nessus	SuSE Local Security Checks	2007/12/13	2021/1/14	critical

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