Linux kernel smb_recv_trans2 memory leak

linux-smbrecvtrans2-memory-leak (18137) The risk level is classified as MediumMedium Risk

Description:

Linux kernel could allow a remote attacker to obtain sensitive information, caused by a vulnerability in the smb_recv_trans2 function. A remote attacker, in control of a malicious SMB server, could send specially-crafted TRANS2 SMB packets to cause a kernel memory leak.


Consequences:

Obtain Information

Remedy:

For Linux kernel 2.4:
Upgrade to the latest version (2.4.28 or later), available from the Linux Kernel Web site. See References.

For Ubuntu Linux:
Upgrade to the latest linux-image package (2.6.8.1_2.6.8.1-16.10 or later), as listed in USN-60-0 January 14, 2005 for more information. See References.

For Red Hat Linux:
Upgrade to the latest kernel package, as listed below. Refer to RHSA-2004:549-10 for more information. See References.

Red Hat Enterprise Linux Desktop and ES, AS, WS (v. 3): 2.4.21-20.0.1.EL or later

For SUSE Linux:
Upgrade to the latest kernel package, as listed in SUSE-SA:2004:042, 2004 for more information. See References.

For Debian GNU/Linux:
Refer to DSA-1070-1, DSA-1069-1, DSA-1067-1, or DSA-1082-1 for patch, upgrade, or suggested workaround information. See References.

For other distributions:
Contact your vendor for upgrade or patch information.

References:

  • CIAC Information Bulletin P-047: Red Hat Updated Kernel Packages.
  • Linux Kernel Web site: The Linux Kernel Archives.
  • BID-11695: Linux Kernel SMBFS Multiple Remote Vulnerabilities
  • CVE-2004-0949: The smb_recv_trans2 function call in the samba filesystem (smbfs) in Linux kernel 2.4 and 2.6 does not properly handle the re-assembly of fragmented packets correctly, which could allow remote samba servers to (1) read arbitrary kernel information or (2) raise a counter value to an arbitrary number by sending the first part of the fragmented packet multiple times.
  • DSA-1067: kernel-source-2.4.16 -- several vulnerabilities
  • DSA-1069: kernel-source-2.4.18 -- several vulnerabilities
  • DSA-1070: kernel-source-2.4.19 -- several vulnerabilities
  • DSA-1082: kernel-source-2.4.17 -- several vulnerabilities
  • MDKSA-2005:022: Updated kernel packages fix multiple vulnerabilities
  • RHSA-2004-504: Updated Itanium kernel packages resolve security issues
  • RHSA-2004-505: Updated kernel packages fix security vulnerability
  • RHSA-2004-549: kernel security update
  • SA13232: Linux Kernel smb Filesystem Implementation Multiple Vulnerabilities
  • SUSE-SA:2004:042: kernel: local and remote denial of service

Platforms Affected:

  • Canonical Ubuntu 4.10
  • Debian Debian Linux 3.0
  • Linux Kernel 2.4.0 test5
  • Linux Kernel 2.4.0
  • Linux Kernel 2.4.0 test9
  • Linux Kernel 2.4.0 test8
  • Linux Kernel 2.4.0 test7
  • Linux Kernel 2.4.0 test6
  • Linux Kernel 2.4.0 test10
  • Linux Kernel 2.4.0 test11
  • Linux Kernel 2.4.0 test12
  • Linux Kernel 2.4.0 test2
  • Linux Kernel 2.4.0 test3
  • Linux Kernel 2.4.0 test4
  • Linux Kernel 2.4.0 test1
  • Linux Kernel 2.4.1
  • Linux Kernel 2.4.10
  • Linux Kernel 2.4.11 pre3
  • Linux Kernel 2.4.11 pre2
  • Linux Kernel 2.4.11
  • Linux Kernel 2.4.11 pre1
  • Linux Kernel 2.4.12
  • Linux Kernel 2.4.13
  • Linux Kernel 2.4.14
  • Linux Kernel 2.4.15
  • Linux Kernel 2.4.16
  • Linux Kernel 2.4.17
  • Linux Kernel 2.4.18 pre9
  • Linux Kernel 2.4.18 pre7
  • Linux Kernel 2.4.18 pre6
  • Linux Kernel 2.4.18 pre5
  • Linux Kernel 2.4.18
  • Linux Kernel 2.4.18 pre4
  • Linux Kernel 2.4.18 pre3
  • Linux Kernel 2.4.18 pre2
  • Linux Kernel 2.4.18 pre1
  • Linux Kernel 2.4.18 pre8
  • Linux Kernel 2.4.19 pre2
  • Linux Kernel 2.4.19 pre1
  • Linux Kernel 2.4.19 pre4
  • Linux Kernel 2.4.19 pre5
  • Linux Kernel 2.4.19 pre6
  • Linux Kernel 2.4.19 pre3
  • Linux Kernel 2.4.19
  • Linux Kernel 2.4.2
  • Linux Kernel 2.4.20
  • Linux Kernel 2.4.21 pre7
  • Linux Kernel 2.4.21 pre4
  • Linux Kernel 2.4.21
  • Linux Kernel 2.4.21 pre1
  • Linux Kernel 2.4.21 pre6
  • Linux Kernel 2.4.21 pre5
  • Linux Kernel 2.4.21 pre3
  • Linux Kernel 2.4.21 pre2
  • Linux Kernel 2.4.22 pre7
  • Linux Kernel 2.4.22 pre10
  • Linux Kernel 2.4.22 pre1
  • Linux Kernel 2.4.22 pre2
  • Linux Kernel 2.4.22 pre3
  • Linux Kernel 2.4.22
  • Linux Kernel 2.4.22 pre6
  • Linux Kernel 2.4.22 pre5
  • Linux Kernel 2.4.22 pre9
  • Linux Kernel 2.4.22 pre8
  • Linux Kernel 2.4.22 pre4
  • Linux Kernel 2.4.23
  • Linux Kernel 2.4.23 pre9
  • Linux Kernel 2.4.23 ow2
  • Linux Kernel 2.4.23 pre4
  • Linux Kernel 2.4.23 pre5
  • Linux Kernel 2.4.23 pre6
  • Linux Kernel 2.4.23 pre7
  • Linux Kernel 2.4.23 pre8
  • Linux Kernel 2.4.23 pre2
  • Linux Kernel 2.4.23 pre3
  • Linux Kernel 2.4.23 pre1
  • Linux Kernel 2.4.24 ow1
  • Linux Kernel 2.4.24
  • Linux Kernel 2.4.25
  • Linux Kernel 2.4.26
  • Linux Kernel 2.4.27 pre2
  • Linux Kernel 2.4.27 pre4
  • Linux Kernel 2.4.27 pre5
  • Linux Kernel 2.4.27
  • Linux Kernel 2.4.27 pre1
  • Linux Kernel 2.4.27 pre3
  • Linux Kernel 2.4.3 pre1
  • Linux Kernel 2.4.3 pre2
  • Linux Kernel 2.4.3 pre3
  • Linux Kernel 2.4.3
  • Linux Kernel 2.4.4
  • Linux Kernel 2.4.5
  • Linux Kernel 2.4.6
  • Linux Kernel 2.4.7
  • Linux Kernel 2.4.8
  • Linux Kernel 2.4.9
  • Linux Kernel 2.4.9 pre1
  • Linux Kernel 2.4.9 pre4
  • Linux Kernel 2.4.9 pre5
  • Linux Kernel 2.4.9 pre2
  • Linux Kernel 2.4.9 pre3
  • Linux Kernel 2.6.0 test9
  • Linux Kernel 2.6.0 test8
  • Linux Kernel 2.6.0
  • Linux Kernel 2.6.0 test1
  • Linux Kernel 2.6.0 test10
  • Linux Kernel 2.6.0 test11
  • Linux Kernel 2.6.0 test2
  • Linux Kernel 2.6.0 test3
  • Linux Kernel 2.6.0 test4
  • Linux Kernel 2.6.0 test7
  • Linux Kernel 2.6.0 test6
  • Linux Kernel 2.6.0 test5
  • Linux Kernel 2.6.1
  • Linux Kernel 2.6.1 rc1
  • Linux Kernel 2.6.1 rc2
  • Linux Kernel 2.6.1 rc3
  • Linux Kernel 2.6.2 rc1
  • Linux Kernel 2.6.2 rc2
  • Linux Kernel 2.6.2 rc3
  • Linux Kernel 2.6.2
  • Linux Kernel 2.6.3 rc1
  • Linux Kernel 2.6.3
  • Linux Kernel 2.6.3 rc2
  • Linux Kernel 2.6.3 rc3
  • Linux Kernel 2.6.3 rc4
  • Linux Kernel 2.6.4 rc2
  • Linux Kernel 2.6.4 rc3
  • Linux Kernel 2.6.4
  • Linux Kernel 2.6.4 rc1
  • Linux Kernel 2.6.5 rc3
  • Linux Kernel 2.6.5
  • Linux Kernel 2.6.5 rc1
  • Linux Kernel 2.6.5 rc2
  • Linux Kernel 2.6.6 rc3
  • Linux Kernel 2.6.6 rc2
  • Linux Kernel 2.6.6
  • Linux Kernel 2.6.6 rc1
  • Linux Kernel 2.6.7 rc2
  • Linux Kernel 2.6.7 rc3
  • Linux Kernel 2.6.7
  • Linux Kernel 2.6.7 rc1
  • Linux Kernel 2.6.8
  • Linux Kernel 2.6.8 rc4
  • Linux Kernel 2.6.8 rc3
  • Linux Kernel 2.6.8 rc2
  • Linux Kernel 2.6.8 rc1
  • Linux Kernel 2.6.8.1
  • Linux Kernel 2.6.9 rc1
  • Linux Kernel 2.6.9 rc3
  • Linux Kernel 2.6.9 rc2
  • Linux Kernel 2.6.9
  • Linux Kernel 2.6.9 rc4
  • MandrakeSoft Mandrake Linux 10.0
  • MandrakeSoft Mandrake Linux 10.0 AMD64
  • MandrakeSoft Mandrake Linux 10.1
  • MandrakeSoft Mandrake Linux 10.1 X86_64
  • MandrakeSoft Mandrake Linux 9.2
  • MandrakeSoft Mandrake Linux 9.2 AMD64
  • MandrakeSoft Mandrake Linux Corporate Server 2.1 X86_64
  • MandrakeSoft Mandrake Linux Corporate Server 2.1
  • MandrakeSoft Mandrake Linux Corporate Server 3.0
  • MandrakeSoft Mandrake Multi Network Firewall 8.2
  • Novell Linux Desktop 9
  • RedHat Enterprise Linux 2.1 AS
  • RedHat Enterprise Linux 2.1 ES
  • RedHat Enterprise Linux 2.1 WS
  • RedHat Enterprise Linux 3 Desktop
  • RedHat Enterprise Linux 3 AS
  • RedHat Enterprise Linux 3 ES
  • RedHat Enterprise Linux 3 WS
  • RedHat Linux Advanced Workstation 2.1 Itanium
  • SuSE Linux Enterprise Server 8
  • SuSE Linux Enterprise Server 9
  • SUSE SuSE Linux 8.1
  • SUSE SuSE Linux 9.0
  • SUSE SuSE Linux 9.2
  • SuSE SuSE Linux Desktop 1.0
  • Turbolinux Turbolinux 10 Desktop
  • Turbolinux Turbolinux 10 F...
  • Turbolinux Turbolinux 10 Server
  • Turbolinux Turbolinux 7 Server
  • Turbolinux Turbolinux 7 Workstation
  • Turbolinux Turbolinux 8 Server
  • Turbolinux Turbolinux 8 Workstation
  • Turbolinux Turbolinux Home
  • Turbolinux Turbolinux Appliance Server 1.0 Hosting Ed
  • Turbolinux Turbolinux Appliance Server 1.0 Workgroup Ed

Reported:

Nov 17, 2004

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