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Samba Denial of Service Vulnerability



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General Info


TC: 14050
Description: A vulnerability has been reported in Samba, which can be exploited by malicious users to cause a DoS (Denial of Service).

Under certain conditions, smbd fails to remove requests from the deferred file open queue. This can be exploited to cause a DoS due to heavy resource usage by triggering an infinite loop when renaming a file under special circumstances.

The security issue has been fixed in version 3.0.24.
TC Impact: Gather Info
Service: NetBios Session



Specific Operations and Actions:


Vulnerability Publication: February 6, 2007
Advisory Copyright: Vendor
Summary: A vulnerability has been reported in Samba, which can be exploited by malicious users to cause a DoS (Denial of Service).
Risk: Medium
CVSS 2.0 metrics: Access Vector: Network
Access Complexity: Low
Authentication: Single
Confidentiality Impact: None
Integrity Impact: None
Availability Impact: Complete
CVSS 2.0 Base Score: 6.8
Vulnerability Impact: Denial of Service
Attack
Host Impact: Denial of Service.
Nature of Remediation: Update the software.
Step required to fix the reported vulnerability:

***** Solution type: Upgrade Software *****

Upgrade to Samba version 3.0.24 or newer.
See references for more details.



Glossary and References :


References:
* BUGTRAQ: 20070205 [SAMBA-SECURITY] CVE-2007-0452: Potential DoS against smbd in Samba 3.0.6 - 3.0.23d
http://www.securityfocus.com/archive/1/archive/1/459167/100/0/threaded
* BUGTRAQ: 20070207 rPSA-2007-0026-1 samba samba-swat
http://www.securityfocus.com/archive/1/archive/1/459365/100/0/threaded
* CONFIRM:
http://us1.samba.org/samba/security/CVE-2007-0452.html
* CONFIRM:
https://issues.rpath.com/browse/RPL-1005
* DEBIAN: DSA-1257
http://www.debian.org/security/2007/dsa-1257
* FEDORA: FEDORA-2007-219
http://fedoranews.org/cms/node/2579
* FEDORA: FEDORA-2007-220
http://fedoranews.org/cms/node/2580
* GENTOO: GLSA-200702-01
http://www.gentoo.org/security/en/glsa/glsa-200702-01.xml
* HP: HPSBUX02204
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c00943462
* MANDRIVA: MDKSA-2007:034
http://www.mandriva.com/security/advisories?name=MDKSA-2007:034
* REDHAT: RHSA-2007:0060
http://www.redhat.com/support/errata/RHSA-2007-0060.html
* REDHAT: RHSA-2007:0061
http://www.redhat.com/support/errata/RHSA-2007-0061.html
* SGI: 20070201-01-P
ftp://patches.sgi.com/support/free/security/advisories/20070201-01-P.asc
* SLACKWARE: SSA:2007-038-01
http://slackware.com/security/viewer.php?l=slackware-security&y=2007&m=slackware-security.476916
* SUSE: SUSE-SA:2007:016
http://lists.suse.com/archive/suse-security-announce/2007-Feb/0002.html
* TRUSTIX: 2007-0007
http://www.trustix.org/errata/2007/0007
* UBUNTU: USN-419-1
http://www.ubuntu.com/usn/usn-419-1
* BID: 22395
http://www.securityfocus.com/bid/22395
* FRSIRT: ADV-2007-0483
http://www.frsirt.com/english/advisories/2007/0483
* FRSIRT: ADV-2007-1278
http://www.frsirt.com/english/advisories/2007/1278
* SECTRACK: 1017587
http://securitytracker.com/id?1017587
* SECUNIA: 24021
http://secunia.com/advisories/24021
* SECUNIA: 24060
http://secunia.com/advisories/24060
* SECUNIA: 24030
http://secunia.com/advisories/24030
* SECUNIA: 24067
http://secunia.com/advisories/24067
* SECUNIA: 24101
http://secunia.com/advisories/24101
* SECUNIA: 24046
http://secunia.com/advisories/24046
* SECUNIA: 24151
http://secunia.com/advisories/24151
* SECUNIA: 24145
http://secunia.com/advisories/24145
* SECUNIA: 24076
http://secunia.com/advisories/24076
* SECUNIA: 24140
http://secunia.com/advisories/24140
* SECUNIA: 24188
http://secunia.com/advisories/24188
* SECUNIA: 24792
http://secunia.com/advisories/24792
* SECUNIA: 24284
http://secunia.com/advisories/24284
* SREASON: 2219
http://securityreason.com/securityalert/2219
* XF: samba-smbd-filerename-dos(32301)
http://xforce.iss.net/xforce/xfdb/32301

CVE Link: CVE-2007-0452
CVE Compatible

Glossary: Denial of Service
DoS
Samba
SMB


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