Samba development team reports :

Samba versions 3.6.3 and all versions previous to this are affected by a vulnerability that allows remote code execution as the 'root' user from an anonymous connection.

As this does not require an authenticated connection it is the most serious vulnerability possible in a program, and users and vendors are encouraged to patch their Samba installations immediately.

A vulnerability has been found and corrected in samba :

The RPC code generator in Samba 3.x before 3.4.16, 3.5.x before 3.5.14, and 3.6.x before 3.6.4 does not implement validation of an array length in a manner consistent with validation of array memory allocation, which allows remote attackers to execute arbitrary code via a crafted RPC call (CVE-2012-1182).

The updated packages have been patched to correct this issue.

Fixes CVE-2010-1182.

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 host is running a version of Mac OS X 10.6 that does not have Security Update 2012-002 applied. This update contains multiple security-related fixes for the following components :

  - curl
  - Directory Service
  - ImageIO
  - libarchive
  - libsecurity
  - libxml
  - Quartz Composer
  - QuickTime
  - Ruby
  - Samba
  - Security Framework

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2013:0506 advisory.

    Samba is an open-source implementation of the Server Message Block (SMB) or     Common Internet File System (CIFS) protocol, which allows PC-compatible     machines to share files, printers, and other information.

    A flaw was found in the Samba suite's Perl-based DCE/RPC IDL (PIDL)     compiler, used to generate code to handle RPC calls. This could result in     code generated by the PIDL compiler to not sufficiently protect against     buffer overflows. (CVE-2012-1182)

    The samba4 packages have been upgraded to upstream version 4.0.0, which     provides a number of bug fixes and enhancements over the previous version.
    In particular, improved interoperability with Active Directory (AD)     domains. SSSD now uses the libndr-krb5pac library to parse the Privilege     Attribute Certificate (PAC) issued by an AD Key Distribution Center (KDC).

    The Cross Realm Kerberos Trust functionality provided by Identity     Management, which relies on the capabilities of the samba4 client library,     is included as a Technology Preview. This functionality and server     libraries, is included as a Technology Preview. This functionality uses the     libndr-nbt library to prepare Connection-less Lightweight Directory Access     Protocol (CLDAP) messages.

    Additionally, various improvements have been made to the Local Security     Authority (LSA) and Net Logon services to allow verification of trust     from a Windows system. Because the Cross Realm Kerberos Trust functionality     is considered a Technology Preview, selected samba4 components are     considered to be a Technology Preview. For more information on which Samba     packages are considered a Technology Preview, refer to Table 5.1, Samba4     Package Support in the Release Notes, linked to from the References.
    (BZ#766333, BZ#882188)

    This update also fixes the following bug:

    * Prior to this update, if the Active Directory (AD) server was rebooted,     Winbind sometimes failed to reconnect when requested by wbinfo -n or     wbinfo -s commands. Consequently, looking up users using the wbinfo tool     failed. This update applies upstream patches to fix this problem and now     looking up a Security Identifier (SID) for a username, or a username for a     given SID, works as expected after a domain controller is rebooted.
    (BZ#878564)

    All users of samba4 are advised to upgrade to these updated packages,     which fix these issues and add these enhancements.

    Warning: If you upgrade from Red Hat Enterprise Linux 6.3 to Red Hat     Enterprise Linux 6.4 and you have Samba in use, you should make sure that     you uninstall the package named samba4 to avoid conflicts during the     upgrade.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise 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.

The remote Oracle Linux 5 / 6 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2012-0465 advisory.

    - Security Release, fixes CVE-2012-1182

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.

The remote Oracle Linux 5 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2012-0466 advisory.

    - Security Release, fixes CVE-2012-1182

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.

- Add the ldapsmb sources as else patches against them     have no chance to apply.

  - Samba pre-3.6.4 are affected by a vulnerability that     allows remote code exe- cution as the 'root' user; PIDL     based autogenerated code allows overwriting beyond of     allocated array; CVE-2012-1182; (bso#8815);
    (bnc#752797).

  - s3-winbindd: Only use SamLogonEx when we can get     unencrypted session keys; (bso#8599).

  - Correctly handle DENY ACEs when privileges apply;
    (bso#8797).

  - s3:smb2_server: fix a logic error, we should sign non     guest sessions; (bso8749).

  - Allow vfs_aio_pthread to build as a static module;
    (bso#8723).

  - s3:dbwrap_ctdb: return the number of records in     db_ctdb_traverse() for persistent dbs; (#bso8527).

  - s3: segfault in dom_sid_compare(bso#8567).

  - Honor SeTakeOwnershiPrivilege when client asks for     SEC_STD_WRITE_OWNER; (bso#8768).

  - s3-winbindd: Close netlogon connection if the status     returned by the NetrSamLogonEx call is timeout in the     pam_auth_crap path; (bso#8771).

  - s3-winbindd: set the can_do_validation6 also for trusted     domain; (bso#8599).

  - Fix problem when calculating the share security mask,     take priviliges into account for the connecting user;
    (bso#8784).

  - Fix crash in dcerpc_lsa_lookup_sids_noalloc() with over     1000 groups; (bso#8807); (bnc#751454).

  - Remove obsoleted Authors lines from spec file for     post-11.2 systems.

  - Make ldapsmb build with Fedora 15 and 16; (bso#8783).

  - BuildRequire libuuid-devel for post-11.0 and other     systems.

  - Define missing python macros for non SUSE systems.

  - PreReq to fillup_prereq and insserv_prereq only on SUSE     systems.

  - Always use cifstab instead of smbfstab on non SUSE     systems.

  - Ensure AndX offsets are increasing strictly     monotonically in pre-3.4 versions; CVE-2012-0870;
    (bnc#747934).

  - Add SERVERID_UNIQUE_ID_NOT_TO_VERIFY; (bso#8760);
    (bnc#741854).

  - s3-printing: fix crash in printer_list_set_printer();
    (bso#8762); (bnc#746825).

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
58671	FreeBSD : samba -- 'root' credential remote code execution (baf37cd2-8351-11e1-894e-00215c6a37bb)	Nessus	FreeBSD Local Security Checks	2012/4/11	2021/1/6	critical
58716	Mandriva Linux Security Advisory : samba (MDVSA-2012:055)	Nessus	Mandriva Local Security Checks	2012/4/12	2021/1/6	critical
58755	Fedora 16 : samba-3.6.4-82.fc16 (2012-5843)	Nessus	Fedora Local Security Checks	2012/4/16	2021/1/11	critical
59067	Mac OS X Multiple Vulnerabilities (Security Update 2012-002) (BEAST)	Nessus	MacOS X Local Security Checks	2012/5/10	2024/5/28	critical
64757	RHEL 6 : samba4 (RHSA-2013:0506)	Nessus	Red Hat Local Security Checks	2013/2/21	2025/3/16	critical
68506	Oracle Linux 5 / 6 : samba (ELSA-2012-0465)	Nessus	Oracle Linux Local Security Checks	2013/7/12	2024/10/22	critical
68507	Oracle Linux 5 : samba3x (ELSA-2012-0466)	Nessus	Oracle Linux Local Security Checks	2013/7/12	2025/4/29	critical
74600	openSUSE Security Update : samba (openSUSE-SU-2012:0507-1)	Nessus	SuSE Local Security Checks	2014/6/13	2021/1/19	critical

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