CVE-2004-0602
CVSS2.1
发布时间 :2004-12-06 00:00:00
修订时间 :2008-09-05 16:38:52
NMCOPS    

[原文]The binary compatibility mode for FreeBSD 4.x and 5.x does not properly handle certain Linux system calls, which could allow local users to access kernel memory to gain privileges or cause a system panic.


[CNNVD]FreeBSD Linux Binary兼容性内存访问漏洞(CNNVD-200412-051)

        FreeBSD 4.x和5.x版本的二进制兼容模式不能正确的处理特定的Linux系统调用,本地用户利用该漏洞访问内核内存从而获取特权或者导致系统恐慌。
        
        

- CVSS (基础分值)

CVSS分值: 2.1 [轻微(LOW)]
机密性影响: PARTIAL [很可能造成信息泄露]
完整性影响: NONE [不会对系统完整性产生影响]
可用性影响: NONE [对系统可用性无影响]
攻击复杂度: LOW [漏洞利用没有访问限制 ]
攻击向量: LOCAL [漏洞利用需要具有物理访问权限或本地帐户]
身份认证: NONE [漏洞利用无需身份认证]

- CPE (受影响的平台与产品)

cpe:/o:freebsd:freebsd:5.0FreeBSD 5.0
cpe:/o:freebsd:freebsd:4.0FreeBSD 4.0

- OVAL (用于检测的技术细节)

未找到相关OVAL定义

- 官方数据库链接

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0602
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2004-0602
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-200412-051
(官方数据源) CNNVD

- 其它链接及资源

http://xforce.iss.net/xforce/xfdb/16558
(VENDOR_ADVISORY)  XF  freebsd-binary-information-disclosure(16558)
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-04:13.linux.asc
(VENDOR_ADVISORY)  FREEBSD  FreeBSD-SA-04:13
http://www.securityfocus.com/bid/10643
(VENDOR_ADVISORY)  BID  10643

- 漏洞信息

FreeBSD Linux Binary兼容性内存访问漏洞
低危 设计错误
2004-12-06 00:00:00 2005-10-20 00:00:00
本地  
        FreeBSD 4.x和5.x版本的二进制兼容模式不能正确的处理特定的Linux系统调用,本地用户利用该漏洞访问内核内存从而获取特权或者导致系统恐慌。
        
        

- 公告与补丁

        FreeBSD has released advisory FreeBSD-SA-04:1 along with fixes dealing with this issue. Please see the referenced advisory for more information.
        FreeBSD FreeBSD 4.10
        
        
        
        FreeBSD FreeBSD 4.8
        
        FreeBSD FreeBSD 4.9
        
        FreeBSD FreeBSD 5.2 -RELEASE
        
        FreeBSD FreeBSD 5.2
        
        FreeBSD FreeBSD 5.2 -RELENG
        
        FreeBSD FreeBSD 5.2.1 -RELEASE
        

- 漏洞信息 (F33692)

FreeBSD Security Advisory 2004.13 (PacketStormID:F33692)
2004-07-01 00:00:00
The FreeBSD Project  freebsd.org
advisory
linux,freebsd
CVE-2004-0602
[点击下载]

FreeBSD Security Advisory FreeBSD-SA-04:13.linux - A programming error in the handling of some Linux system calls may result in memory locations being accessed without proper validation under FreeBSD. All 4.x and 5.x releases are susceptible.

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    <div class="h1"><h1>FreeBSD Security Advisory 2004.13</h1></div>
<dl id="F33692" class="file first">
<dt><a class="ico text-plain" href="/files/download/33692/FreeBSD-SA-04%3A13.linux.txt" title="Size: 5.7 KB"><strong>FreeBSD Security Advisory 2004.13</strong></a></dt>
<dd class="datetime">Posted <a href="/files/date/2004-07-01/" title="11:42:00 UTC">Jul  1, 2004</a></dd>
<dd class="refer">Authored by <a href="/files/author/1243/" class="group">The FreeBSD Project</a> | Site <a href="http://www.freebsd.org/security/">freebsd.org</a></dd>
<dd class="detail"><p>FreeBSD Security Advisory FreeBSD-SA-04:13.linux - A programming error in the handling of some Linux system calls may result in memory locations being accessed without proper validation under FreeBSD. All 4.x and 5.x releases are susceptible.</p></dd>
<dd class="tags"><span>tags</span> | <a href="/files/tags/advisory">advisory</a></dd>
<dd class="os"><span>systems</span> | <a href="/files/os/linux">linux</a>, <a href="/files/os/freebsd">freebsd</a></dd>
<dd class="cve"><span>advisories</span> | <a href="/files/cve/CVE-2004-0602">CVE-2004-0602</a></dd>
<dd class="md5"><span>MD5</span> | <code>f5ab23185b06aeb32c628c6b256c9f97</code></dd>
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<pre><code>-----BEGIN PGP SIGNED MESSAGE-----<br />Hash: SHA1<br /><br />=============================================================================<br />FreeBSD-SA-04:13.linux                                      Security Advisory<br />                                                          The FreeBSD Project<br /><br />Topic:          Linux binary compatibility mode input validation error<br /><br />Category:       core<br />Module:         kernel<br />Announced:      2004-06-30<br />Credits:        Tim Robbins<br />Affects:        All 4.x and 5.x releases<br />Corrected:      2004-06-30 17:31:44 UTC (RELENG_4)<br />                2004-06-30 17:34:38 UTC (RELENG_5_2, 5.2.1-RELEASE-p9)<br />                2004-06-30 17:33:59 UTC (RELENG_4_10, 4.10-RELEASE-p2)<br />                2004-06-30 17:33:24 UTC (RELENG_4_9, 4.9-RELEASE-p11)<br />                2004-06-30 17:32:24 UTC (RELENG_4_8, 4.8-RELEASE-p24)<br />CVE Name:       CAN-2004-0602<br />FreeBSD only:   YES<br /><br />For general information regarding FreeBSD Security Advisories,<br />including descriptions of the fields above, security branches, and the<br />following sections, please visit<br /><URL:http://www.freebsd.org/security/>.<br /><br />I.   Background<br /><br />FreeBSD is binary-compatible with the Linux operating system through a<br />loadable kernel module/optional kernel component.<br /><br />II.  Problem Description<br /><br />A programming error in the handling of some Linux system calls may<br />result in memory locations being accessed without proper validation.<br /><br />III. Impact<br /><br />It may be possible for a local attacker to read and/or overwrite<br />portions of kernel memory, resulting in disclosure of sensitive<br />information or potential privilege escalation.  A local attacker can<br />cause a system panic.<br /><br />IV.  Workaround<br /><br />The only known workaround is to disable the linux binary compatibility <br />layer and prevent it from being (re)loaded.  Note that step (a) must be<br />performed before step (b).<br /><br />a) To prevent the linux compatibility layer being (re)loaded, remove the<br />/boot/kernel/linux.ko file (on FreeBSD 5.x) or the /modules/linux.ko<br />file (on FreeBSD 4.x), and add or change the following line in<br />/etc/rc.conf:<br /><br />linux_enable="NO"       # Linux binary compatibility loaded at startup (or NO).<br /><br />Add or change the following lines in /boot/loader.conf:<br /><br />linux_load="NO"                 # Linux emulation<br />linprocfs_load="NO"<br /><br />In addition, remove any linprocfs file system listed in /etc/fstab.<br /><br />b) To disable the linux binary compatibility layer, first determine if<br />it is loaded:<br /><br /># kldstat -v | grep linuxelf<br /><br />If no output is produced, the linux compatibility layer is not loaded;<br />stop here.<br /><br />If the linux compatibility layer is loaded, determine if it is compiled<br />into the kernel or loaded as a module:<br /><br /># kldstat | grep linux.ko<br /><br />If no output is produced, the linux compatibility layer is compiled<br />into the kernel.  Remove the line<br /><br />options         COMPAT_LINUX<br /><br />from your kernel configuration file and recompile the kernel as<br />described in <br /><URL:http://www.freebsd.org/handbook/kernelconfig.html> and reboot the<br />system.<br /><br />If output is produced, then the linux compatibility layer is loaded as<br />a kernel module.  If the module is not currently being used (by a<br />process running under linux emulation, for example) then it may be<br />possible to unload it:<br /><br /># kldunload linux<br /># kldstat | grep linux.ko<br /><br />If this does not successfully unload the module, reboot the system.<br /><br />V.   Solution<br /><br />Perform one of the following:<br /><br />1) Upgrade your vulnerable system to 4-STABLE; or to the RELENG_5_2,<br />RELENG_4_10, RELENG_4_9, or RELENG_4_8 security branch dated after the<br />correction date.<br /><br />2) To patch your present system:<br /><br />The following patches have been verified to apply to FreeBSD 4.8, 4.9,<br />4.10 and 5.2 systems.<br /><br />a) Download the relevant patch from the location below, and verify the<br />detached PGP signature using your PGP utility.<br /><br />[FreeBSD 5.2]<br /># fetch ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-04:13/linux5.patch<br /># fetch ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-04:13/linux5.patch.asc<br /><br />[FreeBSD 4.8, 4.9, 4.10]<br /># fetch ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-04:13/linux4.patch<br /># fetch ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-04:13/linux4.patch.asc<br /><br />b) Apply the patch.<br /><br /># cd /usr/src<br /># patch < /path/to/patch<br /><br />c) Recompile your kernel as described in<br /><URL:http://www.freebsd.org/handbook/kernelconfig.html> and reboot the<br />system.<br /><br />VI.  Correction details<br /><br />The following list contains the revision numbers of each file that was<br />corrected in FreeBSD.<br /><br />Branch                                                           Revision<br />  Path<br />- -------------------------------------------------------------------------<br />RELENG_4<br />  src/sys/compat/linux/linux_ioctl.c                            1.55.2.13<br />RELENG_5_2<br />  src/UPDATING                                                 1.282.2.17<br />  src/sys/compat/linux/linux_ioctl.c                            1.112.2.1<br />  src/sys/conf/newvers.sh                                       1.56.2.16<br />RELENG_4_10<br />  src/UPDATING                                              1.73.2.90.2.3<br />  src/sys/compat/linux/linux_ioctl.c                        1.55.2.12.4.1<br />  src/sys/conf/newvers.sh                                   1.44.2.34.2.4<br />RELENG_4_9<br />  src/UPDATING                                             1.73.2.89.2.12<br />  src/sys/compat/linux/linux_ioctl.c                        1.55.2.12.2.1<br />  src/sys/conf/newvers.sh                                  1.44.2.32.2.12<br />RELENG_4_8<br />  src/UPDATING                                             1.73.2.80.2.27<br />  src/sys/compat/linux/linux_ioctl.c                        1.55.2.10.6.1<br />  src/sys/conf/newvers.sh                                  1.44.2.29.2.25<br />- -------------------------------------------------------------------------<br />-----BEGIN PGP SIGNATURE-----<br />Version: GnuPG v1.2.4 (FreeBSD)<br /><br />iD8DBQFA48FqFdaIBMps37IRArpeAKCP1G1bFmYiD0v3Qdg8pq5zkV7JywCcDUHn<br />dz5yJTOovQSmIaLVD/Ei8Xw=<br />=SVrJ<br />-----END PGP SIGNATURE-----<br /></code></pre>
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- 漏洞信息

7330
FreeBSD Linux Compatibility Mode Improper System Call Handling Arbitrary Kernel Memory Access
Local Access Required Input Manipulation
Loss of Confidentiality, Loss of Integrity
Exploit Unknown

- 漏洞描述

FreeBSD contains a flaw that may allow a malicious user to gain access to unauthorized privileges. The issue is triggered when certain Linux system calls are accepted by the platform without input validation, allowing arbitrary read and write access to kernel memory. This flaw may lead to a loss of integrity.

- 时间线

2004-06-30 Unknow
Unknow Unknow

- 解决方案

FreeBSD has released a patch to address this vulnerability. It is possible to correct the flaw by implementing the following workaround: disable the linux binary compatibility layer and prevent it from being (re)loaded.

- 相关参考

- 漏洞作者

- 漏洞信息

FreeBSD Linux Binary Compatibility Memory Access Vulnerability
Design Error 10643
No Yes
2004-07-01 12:00:00 2009-07-12 05:16:00
The individual responsible for discovery of this issue is currently unknown; this issue was disclosed in the referenced FreeBSD advisory.

- 受影响的程序版本

FreeBSD FreeBSD 5.2.1 -RELEASE
FreeBSD FreeBSD 5.2 -RELENG
FreeBSD FreeBSD 5.2 -RELEASE
FreeBSD FreeBSD 5.2
FreeBSD FreeBSD 5.1 -RELENG
FreeBSD FreeBSD 5.1 -RELEASE/Alpha
FreeBSD FreeBSD 5.1 -RELEASE-p5
FreeBSD FreeBSD 5.1 -RELEASE
FreeBSD FreeBSD 5.1
FreeBSD FreeBSD 5.0 -RELENG
FreeBSD FreeBSD 5.0 -RELEASE-p14
FreeBSD FreeBSD 5.0 alpha
FreeBSD FreeBSD 5.0
FreeBSD FreeBSD 4.10 -RELENG
FreeBSD FreeBSD 4.10 -RELEASE
FreeBSD FreeBSD 4.10
FreeBSD FreeBSD 4.9 -RELENG
FreeBSD FreeBSD 4.9 -PRERELEASE
FreeBSD FreeBSD 4.9
FreeBSD FreeBSD 4.8 -RELENG
FreeBSD FreeBSD 4.8 -RELEASE-p7
FreeBSD FreeBSD 4.8 -PRERELEASE
FreeBSD FreeBSD 4.8
FreeBSD FreeBSD 4.7 -STABLE
FreeBSD FreeBSD 4.7 -RELENG
FreeBSD FreeBSD 4.7 -RELEASE-p17
FreeBSD FreeBSD 4.7 -RELEASE
FreeBSD FreeBSD 4.7
FreeBSD FreeBSD 4.6.2
FreeBSD FreeBSD 4.6 -STABLE
FreeBSD FreeBSD 4.6 -RELENG
FreeBSD FreeBSD 4.6 -RELEASE-p20
FreeBSD FreeBSD 4.6 -RELEASE
FreeBSD FreeBSD 4.6
FreeBSD FreeBSD 4.5 -STABLEpre2002-03-07
FreeBSD FreeBSD 4.5 -STABLE
FreeBSD FreeBSD 4.5 -RELENG
FreeBSD FreeBSD 4.5 -RELEASE-p32
FreeBSD FreeBSD 4.5 -RELEASE
FreeBSD FreeBSD 4.5
FreeBSD FreeBSD 4.4 -STABLE
FreeBSD FreeBSD 4.4 -RELENG
FreeBSD FreeBSD 4.4 -RELENG
FreeBSD FreeBSD 4.4 -RELEASE-p42
FreeBSD FreeBSD 4.4
FreeBSD FreeBSD 4.3 -STABLE
FreeBSD FreeBSD 4.3 -RELENG
FreeBSD FreeBSD 4.3 -RELEASE-p38
FreeBSD FreeBSD 4.3 -RELEASE
FreeBSD FreeBSD 4.3
FreeBSD FreeBSD 4.2 -STABLEpre122300
FreeBSD FreeBSD 4.2 -STABLEpre050201
FreeBSD FreeBSD 4.2 -STABLE
FreeBSD FreeBSD 4.2 -RELEASE
FreeBSD FreeBSD 4.2
FreeBSD FreeBSD 4.1.1 -STABLE
FreeBSD FreeBSD 4.1.1 -RELEASE
FreeBSD FreeBSD 4.1.1
FreeBSD FreeBSD 4.1
FreeBSD FreeBSD 4.0 .x
FreeBSD FreeBSD 4.0 -RELENG
FreeBSD FreeBSD 4.0 alpha
FreeBSD FreeBSD 4.0
FreeBSD FreeBSD 4.10-PRERELEASE

- 漏洞讨论

It has been reported that FreeBSD is affected by a memory access vulnerability when implementing linux binary compatibility. This issue is due to a programming error that causes certain memory to be accessed without proper validation.

This issue would allow an attacker to disclose and overwrite kernel memory, resulting in information disclosure, privilege escalation and potential denial of service.

- 漏洞利用

Currently we are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: vuldb@securityfocus.com &lt;mailto:vuldb@securityfocus.com&gt;.

- 解决方案

FreeBSD has released advisory FreeBSD-SA-04:1 along with fixes dealing with this issue. Please see the referenced advisory for more information.


FreeBSD FreeBSD 4.10

FreeBSD FreeBSD 4.8

FreeBSD FreeBSD 4.9

FreeBSD FreeBSD 5.2 -RELEASE

FreeBSD FreeBSD 5.2

FreeBSD FreeBSD 5.2 -RELENG

FreeBSD FreeBSD 5.2.1 -RELEASE

- 相关参考

 

 

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