Samba延迟CIFS文件打开拒绝服务漏洞

Samba是一套实现SMB（Server Messages Block）协议、跨平台进行文件共享和打印共享服务的程序。 Samba的延迟文件打开机制的实现上存在漏洞，远程攻击者可能利用此漏洞对服务器执行拒绝服务攻击。 Samba的文件服务守护程序smbd支持延迟文件打开调用。在某些环境下重新命名文件时可能没有从延迟的打开队列删除请求，这样smbd就会陷入试图处理打开请求服务的死循环。如果已认证用户打开了多个CIFS会话的话，每个会话都会生成新的smbd进程，每个连接都会陷入死循环，这样就会导致在服务器上耗尽内存和CPU资源。 Samba 3.0.6 - 3.0.23d 厂商补丁：...

CVE-2007-0452: Undefined Security Weakness

smbd in Samba 3.0.6 through 3.0.23d allows remote authenticated users to cause a denial of service memory and CPU exhaustion by renaming a file in a way that prevents a request from being removed from the deferred open queue, which triggers an infinite loop...

Samba file server multiple security vulnerabilities

Solaris nsswinbind.so.1 gethostbyname and nsswinbind.so.1 functions buffer overflow. Remote DoS in smbd with infinite loop. Format string vulnerability in VFS afsacl.so plugin...

samba -- potential Denial of Service bug in smbd

The Samba Team reports: Internally Samba's file server daemon, smbd, implements support for deferred file open calls in an attempt to serve client requests that would otherwise fail due to a share mode violation. When renaming a file under certain circumstances it is possible that the request is...

Potential Denial of Service bug in smbd

Description Internally Samba's file server daemon, smbd, implements support for deferred file open calls in an attempt to serve client requests that would otherwise fail due to a share mode violation. When renaming a file under certain circumstances it is possible that the request is never remove...

CVE-2006-3403

CVE-2006-3403 affects Samba 3.0.1–3.0.22 where the smbd service could be forced to consume memory by a flood of share-connection requests, enabling a remote DoS. A fix was released in later Samba versions (e.g., 3.0.23 and beyond) to address the memory-exhaustion condition; multiple vendor adviso...

CVE-2006-3403

The smdb daemon smbd/service.c in Samba 3.0.1 through 3.0.22 allows remote attackers to cause a denial of service memory consumption via a large number of share connection requests...

CVE-2006-3403: Undefined Security Weakness

The smdb daemon smbd/service.c in Samba 3.0.1 through 3.0.22 allows remote attackers to cause a denial of service memory consumption via a large number of share connection requests...

Samba file server DoS

Memory exhaustion in smbd by issuing large number of share connection requests...

[ANNOUNCEMENT] Samba 3.0.1 - 3.0.22: memory exhaustion DoS against smbd

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ========================================================== == == Subject: Memory exhaustion DoS against smbd == CVE ID: CAN-2006-1059 == == Versions: Samba Samba 3.0.1 - 3.0.22 inclusive == == Summary: smbd may allow internal structures == maintaining...

Memory exhaustion DoS against smbd

Description The smbd daemon maintains internal data structures used track active connections to file and printer shares. In certain circumstances an attacker may be able to continually increase the memory usage of an smbd process by issuing a large number of share connection requests. This defect...

FreeBSD : samba -- integer overflow vulnerability (3b3676be-52e1-11d9-a9e7-0001020eed82)

Greg MacManus, iDEFENSE Labs reports : Remote exploitation of an integer overflow vulnerability in the smbd daemon included in Samba 2.0.x, Samba 2.2.x, and Samba 3.0.x prior to and including 3.0.9 could allow an attacker to cause controllable heap corruption, leading to execution of arbitrary...

FreeBSD : smbd -- buffer-overrun vulnerability (f3d3f621-38d8-11d9-8fff-000c6e8f12ef)

Caused by improper bounds checking of certain trans2 requests, there is a possible buffer overrun in smbd. The attacker needs to be able to create files with very specific Unicode filenames on the share to take advantage of this issue. %NASLMINLEVEL 70300 C Tenable Network Security, Inc. The...

CVE-2004-1154: Undefined Security Weakness

Integer overflow in the Samba daemon smbd in Samba 2.x and 3.0.x through 3.0.9 allows remote authenticated users to cause a denial of service application crash and possibly execute arbitrary code via a Samba request with a large number of security descriptors that triggers a heap-based buffer...

iDEFENSE Security Advisory 12.16.04: Samba smbd Security Descriptor Integer Overflow Vulnerability

Samba smbd Security Descriptor Integer Overflow Vulnerability iDEFENSE Security Advisory 12.16.04 http://www.idefense.com/application/poi/display?id=165 December 16, 2004 I. BACKGROUND Samba is an open source implementation of the SMB/CIFS protocol which allows Windows clients to use resources on...

smbd -- buffer-overrun vulnerability

Caused by improper bounds checking of certain trans2 requests, there is a possible buffer overrun in smbd. The attacker needs to be able to create files with very specific Unicode filenames on the share to take advantage of this issue...

Important: Red Hat Security Advisory: samba security update

Updated samba packages that fix two denial of service vulnerabilities are now available. Updated 23rd September 2004 Packages have been updated to include the ppc64 packages which were left out of the initial errata. Samba provides file and printer sharing services to SMB/CIFS clients. The Samba...

Multiple Samba bugs

DoS against NetBIOS name service nmbd, endless loop in SMBD...

Samba: Denial of Service vulnerabilities

Background Samba is a freely available SMB/CIFS implementation which allows seamless interoperability of file and print services to other SMB/CIFS clients. smbd and nmbd are two daemons used by the Samba server. Description There is a defect in smbd's ASN.1 parsing. A bad packet received during t...

CVE-2004-0829: Undefined Security Weakness

smbd in Samba before 2.2.11 allows remote attackers to cause a denial of service daemon crash by sending a FindNextPrintChangeNotify request without a previous FindFirstPrintChangeNotify, as demonstrated by the SMB client in Windows XP SP2...