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.
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 SP1
- Novell, SUSE Linux Enterprise 10 SP1 DEBUGINFO
- Novell, SUSE Linux Enterprise Desktop 10 SP1
- Novell, SUSE Linux Enterprise Server 10
- Novell, SUSE Linux Enterprise Server 10 SP1
- RedHat, Enterprise Linux 4 ES
- RedHat, Enterprise Linux 4 Desktop
- RedHat, Enterprise Linux 4 AS
- RedHat, Enterprise Linux 4 WS
- RedHat, Enterprise Linux 5
- RedHat, Enterprise Linux 5 Client
- SuSE, SLE SDK 10
- SuSE, SuSE Linux 10.0 Desktop
- SuSE, SuSE Linux 10.1
- SuSE, SuSE Linux Enterprise Realtime 10 SP1
- SuSE, SuSE Linux Enterprise Server 9.0
- SuSE, SuSE SLES 9
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.
Consequences:
Gain Access
References:
- Linux CIFS Client Web page, CIFS VFS at http://linux-cifs.samba.org/.
- Linux kernel GIT Repository, [CIFS] Fix buffer overflow if server sends corrupt response to small request at http://git.kernel.org/?p=linux/kernel/git/sfrench/cifs-2.6.git;a=commit;h=133672efbc1085f9af990bdc145e1822ea93bcf3.
- linux-kernel Mailing List, 2007-11-08 21:20:03, Buffer overflow in CIFS VFS. at http://marc.info/?l=linux-kernel&m=119455843205403&w=2.
- linux-kernel Mailing List, 2007-11-09 2:12:25, Re: Fw: Buffer overflow in CIFS VFS. at http://marc.info/?l=linux-kernel&m=119457447724276&w=2.
- 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
- FrSIRT/ADV-2007-3860: Linux Kernel CIFS SendReceive() Remote Buffer Overflow Vulnerability
- 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
Reported:
Nov 08, 2007
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