Linux kernel scm_send denial of service

linux-scmsend-dos (18483)

Low Risk

Description:

Linux kernel is vulnerable to a denial of service attack, caused by a vulnerability in the SCM layer of the socket API. A local attacker could send a specially-crafted auxiliary message to the scm_send function in the SCM layer to cause the system to hang. In versions 2.6.x through 2.6.9, it is possible that the local attacker could gain elevated privileges.

Platforms Affected:

• Canonical, Ubuntu 4.10
• Debian, Debian Linux 3.0
• Linux, Kernel 2.4.0
• Linux, Kernel 2.4.0 test1
• Linux, Kernel 2.4.0 test9
• 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 test5
• Linux, Kernel 2.4.0 test6
• Linux, Kernel 2.4.0 test7
• Linux, Kernel 2.4.0 test8
• Linux, Kernel 2.4.1
• Linux, Kernel 2.4.10
• Linux, Kernel 2.4.11
• Linux, Kernel 2.4.11 pre3
• Linux, Kernel 2.4.11 pre1
• Linux, Kernel 2.4.11 pre2
• 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 pre4
• Linux, Kernel 2.4.18 pre3
• Linux, Kernel 2.4.18 pre2
• Linux, Kernel 2.4.18 pre1
• Linux, Kernel 2.4.18
• Linux, Kernel 2.4.18 pre5
• Linux, Kernel 2.4.18 pre9
• Linux, Kernel 2.4.18 pre8
• Linux, Kernel 2.4.18 pre7
• Linux, Kernel 2.4.18 pre6
• Linux, Kernel 2.4.19
• Linux, Kernel 2.4.19 pre1
• Linux, Kernel 2.4.19 pre5
• Linux, Kernel 2.4.19 pre4
• Linux, Kernel 2.4.19 pre3
• Linux, Kernel 2.4.19 pre2
• Linux, Kernel 2.4.19 pre6
• Linux, Kernel 2.4.2
• Linux, Kernel 2.4.20
• Linux, Kernel 2.4.21 pre7
• Linux, Kernel 2.4.21 pre6
• Linux, Kernel 2.4.21 pre5
• Linux, Kernel 2.4.21 pre2
• Linux, Kernel 2.4.21
• Linux, Kernel 2.4.21 pre4
• Linux, Kernel 2.4.21 pre1
• Linux, Kernel 2.4.21 pre3
• Linux, Kernel 2.4.22 pre2
• Linux, Kernel 2.4.22 pre1
• Linux, Kernel 2.4.22 pre9
• Linux, Kernel 2.4.22 pre8
• Linux, Kernel 2.4.22 pre7
• Linux, Kernel 2.4.22 pre3
• Linux, Kernel 2.4.22 pre5
• Linux, Kernel 2.4.22 pre4
• Linux, Kernel 2.4.22 pre10
• Linux, Kernel 2.4.22
• Linux, Kernel 2.4.22 pre6
• Linux, Kernel 2.4.23 pre7
• Linux, Kernel 2.4.23 pre6
• Linux, Kernel 2.4.23 pre5
• Linux, Kernel 2.4.23 pre4
• Linux, Kernel 2.4.23 pre3
• Linux, Kernel 2.4.23 pre2
• Linux, Kernel 2.4.23 pre1
• Linux, Kernel 2.4.23 pre8
• Linux, Kernel 2.4.23 pre9
• Linux, Kernel 2.4.23 ow2
• Linux, Kernel 2.4.23
• 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 pre3
• Linux, Kernel 2.4.27 pre1
• Linux, Kernel 2.4.27 pre2
• Linux, Kernel 2.4.27 pre5
• Linux, Kernel 2.4.27
• Linux, Kernel 2.4.27 pre4
• Linux, Kernel 2.4.28
• Linux, Kernel 2.4.3
• Linux, Kernel 2.4.3 pre3
• Linux, Kernel 2.4.3 pre1
• Linux, Kernel 2.4.3 pre2
• 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 pre3
• Linux, Kernel 2.4.9 pre4
• Linux, Kernel 2.4.9 pre2
• Linux, Kernel 2.4.9 pre1
• Linux, Kernel 2.4.9 pre5
• Linux, Kernel 2.4.9
• 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 test5
• Linux, Kernel 2.6.0 test9
• Linux, Kernel 2.6.0 test8
• Linux, Kernel 2.6.0 test7
• Linux, Kernel 2.6.0 test6
• Linux, Kernel 2.6.1 rc3
• Linux, Kernel 2.6.1
• Linux, Kernel 2.6.1 rc2
• Linux, Kernel 2.6.1 rc1
• Linux, Kernel 2.6.2 rc1
• Linux, Kernel 2.6.2
• Linux, Kernel 2.6.2 rc2
• Linux, Kernel 2.6.2 rc3
• 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 rc1
• Linux, Kernel 2.6.4
• Linux, Kernel 2.6.4 rc2
• Linux, Kernel 2.6.4 rc3
• Linux, Kernel 2.6.5 rc3
• Linux, Kernel 2.6.5 rc1
• Linux, Kernel 2.6.5 rc2
• Linux, Kernel 2.6.5
• Linux, Kernel 2.6.6
• Linux, Kernel 2.6.6 rc1
• Linux, Kernel 2.6.6 rc2
• Linux, Kernel 2.6.6 rc3
• 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 rc2
• Linux, Kernel 2.6.8 rc1
• Linux, Kernel 2.6.8 rc4
• Linux, Kernel 2.6.8 rc3
• Linux, Kernel 2.6.8
• Linux, Kernel 2.6.8.1
• Linux, Kernel 2.6.9 rc1
• Linux, Kernel 2.6.9
• Linux, Kernel 2.6.9 rc2
• Linux, Kernel 2.6.9 rc3
• Linux, Kernel 2.6.9 rc4
• MandrakeSoft, Mandrake Linux 10.0 AMD64
• MandrakeSoft, Mandrake Linux 10.0
• MandrakeSoft, Mandrake Linux 10.1
• MandrakeSoft, Mandrake Linux 10.1 X86_64
• MandrakeSoft, Mandrake Linux 9.2 AMD64
• MandrakeSoft, Mandrake Linux 9.2
• 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 WS
• RedHat, Enterprise Linux 3 ES
• RedHat, Enterprise Linux 3 AS
• RedHat, Enterprise Linux 3 Desktop
• RedHat, Linux Advanced Workstation 2.1 Itanium
• SuSE, SuSE Linux 8.1
• SuSE, SuSE Linux 8.2
• SuSE, SuSE Linux 9.0
• SuSE, SuSE Linux 9.1
• SuSE, SuSE Linux 9.2
• SuSE, SuSE Linux Desktop 1.0
• SuSE, SuSE Linux Enterprise Server 8.0
• SuSE, SuSE Linux Enterprise Server 9.0
• 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

Remedy:

For Trustix Secure Linux:
Upgrade to the latest kernel package, as listed below. Refer to Trustix Secure Linux Security Advisory #2004-0068 for more information. See References.

Trustix Secure Linux 2.0: 2.4.28-7tr or later
Trustix Secure Linux 2.1: 2.4.28-7tr or later
Trustix Secure Linux 2.2: 2.4.28-7tr or later

For Ubuntu Linux:
Upgrade to the latest linux-image package (2.6.8.1-16.3 or later), as listed in USN-38-1 December 14, 2004 for more information. See References.

For Red Hat Linux:
Upgrade to the latest kernel package, as listed below. Refer to RHSA-2005:043-13, RHSA-2005:016-13, or RHSA-2005:017-14 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.

Consequences:

Denial of Service

References:

• BugTraq Mailing List, Tue Dec 14 2004 - 04:32:57 CST , Linux kernel scm_send local DoS at http://archives.neohapsis.com/archives/bugtraq/2004-12/0130.html.
• CIAC Information Bulletin P-081, Linux Kernel Vulnerabilities at http://www.ciac.org/ciac/bulletins/p-081.shtml.
• Linux Kernel Web site, The Linux Kernel Archives at http://www.kernel.org/.
• Trustix Secure Linux Advisory #2004-0068, Local hole, remote DoS at http://www.xatrix.org/advisory.php?s=4892.
• BID-11921: Linux Kernel SCM_SEND Local Denial of Service Vulnerability
• CVE-2004-1016: The scm_send function in the scm layer for Linux kernel 2.4.x up to 2.4.28, and 2.6.x up to 2.6.9, allows local users to cause a denial of service (system hang) via crafted auxiliary messages that are passed to the sendmsg function, which causes a deadlock condition.
• 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-2004-689: kernel security update
• RHSA-2005-016: kernel security update
• RHSA-2005-017: kernel security update
• SUSE-SA:2004:044: kernel: various kernel problems

Reported:

Dec 14, 2004

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