Linux kernel CIFS VFS SendReceive() buffer overflow
| linux-kernel-cifsvfs-sendreceive-bo (38450) |  High Risk |
Description:
The CIFS VFS file system in Linux kernel is vulnerable to multiple buffer overflows, caused by improper bounds checking by the SendReceive() function. By sending an overly long SMB response, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the file system to crash.
*CVSS:
| Base Score: | 7.5 |
| Access Vector: | Network |
| Access Complexity: | Low |
| Authentication: | None |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | Partial |
| Temporal Score: | 5.5 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Access
Remedy:
Apply the patch available from the Linux kernel GIT Repository. See References.
For other distributions:
Apply the appropriate update for your system. See References.
References:
- Linux CIFS Client Web page: CIFS VFS.
- Linux kernel GIT Repository: [CIFS] Fix buffer overflow if server sends corrupt response to small request.
- linux-kernel Mailing List, 2007-11-08 21:20:03: Buffer overflow in CIFS VFS..
- linux-kernel Mailing List, 2007-11-09 2:12:25: Re: Fw: Buffer overflow in CIFS VFS..
- ASA-2008-165: kernel security and bug fix update (RHSA-2008-0167)
- BID-26438: Linux Kernel CIFS Transport.C Remote Buffer Overflow Vulnerability
- CVE-2007-5904: Multiple buffer overflows in CIFS VFS in Linux kernel 2.6.23 and earlier allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via long SMB responses that trigger the overflows in the SendReceive function.
- DSA-1428: linux-2.6 -- several vulnerabilities
- RHSA-2008-0089: Important: kernel security and bug fix update
- RHSA-2008-0167: Moderate: kernel security and bug fix update
- SA27666: Linux Kernel CIFS "SendReceive()" Buffer Overflow
- SECTRACK ID: 1019612: Linux Kernel Buffer Overflow in CIFS VFS May Let Remote Authenticated Users Execute Arbitrary Code
- SUSE-SA:2007:063: Linux kernel security problems
- SUSE-SA:2007:064: Linux kernel security problems
- SUSE-SA:2008:013: Linux kernel security problem
- SUSE-SA:2008:017: Linux kernel security update
- SUSE-SA:2008:030: Linux kernel security update
- USN-618-1: Linux kernel vulnerabilities
- VUPEN/ADV-2007-3860: Linux Kernel CIFS SendReceive() Remote Buffer Overflow Vulnerability
Platforms Affected:
- Canonical Ubuntu 6.06 LTS
- Canonical Ubuntu 7.04
- Canonical Ubuntu 7.10
- Debian Debian Linux 4.0
- Linux Kernel 2.6.0
- Linux Kernel 2.6.1
- Linux Kernel 2.6.10
- Linux Kernel 2.6.11
- Linux Kernel 2.6.12
- Linux Kernel 2.6.13
- Linux Kernel 2.6.14
- Linux Kernel 2.6.15
- Linux Kernel 2.6.16
- Linux Kernel 2.6.17
- Linux Kernel 2.6.18
- Linux Kernel 2.6.19
- Linux Kernel 2.6.2
- Linux Kernel 2.6.20
- Linux Kernel 2.6.21
- Linux Kernel 2.6.22
- Linux Kernel 2.6.23
- Linux Kernel 2.6.3
- Linux Kernel 2.6.4
- Linux Kernel 2.6.5
- Linux Kernel 2.6.6
- Linux Kernel 2.6.7
- Linux Kernel 2.6.8
- Linux Kernel 2.6.9
- Novell Linux Desktop 9
- Novell Linux POS 9
- Novell Open Enterprise Server
- Novell Open Enterprise Server
- Novell OpenSUSE 10.2
- Novell OpenSUSE 10.3
- Novell SLE SDK 10
- Novell SLE SDK 10 SP1
- Novell SuSE Linux 10.0 Desktop
- Novell SUSE Linux Enterprise 10 SP1 DEBUGINFO
- Novell SUSE Linux Enterprise Desktop 10 SP1
- Novell SUSE Linux Enterprise Server 10 SP1
- Novell SUSE Linux Enterprise Server 10
- RedHat Enterprise Linux 4 Desktop
- RedHat Enterprise Linux 4 WS
- RedHat Enterprise Linux 4 ES
- RedHat Enterprise Linux 4 AS
- RedHat Enterprise Linux 5
- RedHat Enterprise Linux 5 Client
- SuSE Linux Enterprise Server 9
- SUSE SuSE Linux 10.1
- SuSE SuSE Linux Enterprise Realtime 10 SP1
- SuSE SuSE SLES 9
Reported:
Nov 08, 2007
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.