Linux kernel SMP page fault handler privilege escalation

linux-fault-handler-gain-privileges (18849) The risk level is classified as HighHigh Risk

Description:

Linux kernel could allow a local attacker to gain elevated privileges on the system, caused by a race condition in the SMP page fault handler.

Platforms Affected:

  • Canonical, Ubuntu 4.10
  • Debian, Debian Linux 3.0
  • Linux, Kernel 2.2.0
  • Linux, Kernel 2.2.1
  • Linux, Kernel 2.2.10
  • Linux, Kernel 2.2.11
  • Linux, Kernel 2.2.12
  • Linux, Kernel 2.2.13
  • Linux, Kernel 2.2.13 pre15
  • Linux, Kernel 2.2.14
  • Linux, Kernel 2.2.15 pre20
  • Linux, Kernel 2.2.15
  • Linux, Kernel 2.2.15 pre16
  • Linux, Kernel 2.2.16 pre5
  • Linux, Kernel 2.2.16 pre6
  • Linux, Kernel 2.2.16
  • Linux, Kernel 2.2.17 pre14
  • Linux, Kernel 2.2.17
  • Linux, Kernel 2.2.18
  • Linux, Kernel 2.2.19
  • Linux, Kernel 2.2.2
  • Linux, Kernel 2.2.20
  • Linux, Kernel 2.2.21 pre2
  • Linux, Kernel 2.2.21 rc1
  • Linux, Kernel 2.2.21 pre4
  • Linux, Kernel 2.2.21 pre3
  • Linux, Kernel 2.2.21 pre1
  • Linux, Kernel 2.2.21 rc4
  • Linux, Kernel 2.2.21 rc3
  • Linux, Kernel 2.2.21 rc2
  • Linux, Kernel 2.2.21
  • Linux, Kernel 2.2.22 rc1
  • Linux, Kernel 2.2.22 rc2
  • Linux, Kernel 2.2.22 rc3
  • Linux, Kernel 2.2.22
  • Linux, Kernel 2.2.23 rc2
  • Linux, Kernel 2.2.23
  • Linux, Kernel 2.2.23 rc1
  • Linux, Kernel 2.2.24
  • Linux, Kernel 2.2.24 rc5
  • Linux, Kernel 2.2.24 rc4
  • Linux, Kernel 2.2.24 rc3
  • Linux, Kernel 2.2.24 rc2
  • Linux, Kernel 2.2.25
  • Linux, Kernel 2.2.26
  • Linux, Kernel 2.2.27 rc1
  • Linux, Kernel 2.2.27 pre1
  • Linux, Kernel 2.2.27 pre2
  • Linux, Kernel 2.2.3
  • Linux, Kernel 2.2.4
  • Linux, Kernel 2.2.4 rc1
  • Linux, Kernel 2.2.5
  • Linux, Kernel 2.2.6
  • Linux, Kernel 2.2.7
  • Linux, Kernel 2.2.8
  • Linux, Kernel 2.2.9
  • 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 2.4.0 test9
  • Linux, Kernel 2.4.0
  • Linux, Kernel 2.4.0 test1
  • 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 2.4.1
  • Linux, Kernel 2.4.10
  • Linux, Kernel 2.4.11
  • Linux, Kernel 2.4.11 pre3
  • Linux, Kernel 2.4.11 pre2
  • 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 pre1
  • Linux, Kernel 2.4.18 pre2
  • Linux, Kernel 2.4.18 pre3
  • Linux, Kernel 2.4.18 pre4
  • Linux, Kernel 2.4.18
  • Linux, Kernel 2.4.18 pre5
  • Linux, Kernel 2.4.18 pre6
  • Linux, Kernel 2.4.18 pre7
  • Linux, Kernel 2.4.18 pre8
  • Linux, Kernel 2.4.18 pre9
  • Linux, Kernel 2.4.19
  • Linux, Kernel 2.4.19 pre1
  • Linux, Kernel 2.4.19 pre2
  • Linux, Kernel 2.4.19 pre3
  • Linux, Kernel 2.4.19 pre5
  • Linux, Kernel 2.4.19 pre4
  • Linux, Kernel 2.4.19 pre6
  • Linux, Kernel 2.4.2
  • Linux, Kernel 2.4.20
  • 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 2.4.21
  • Linux, Kernel 2.4.21 pre1
  • Linux, Kernel 2.4.21 pre4
  • Linux, Kernel 2.4.21 pre7
  • Linux, Kernel 2.4.22 pre7
  • Linux, Kernel 2.4.22 pre8
  • Linux, Kernel 2.4.22 pre9
  • Linux, Kernel 2.4.22
  • Linux, Kernel 2.4.22 pre5
  • Linux, Kernel 2.4.22 pre6
  • Linux, Kernel 2.4.22 pre3
  • Linux, Kernel 2.4.22 pre2
  • Linux, Kernel 2.4.22 pre1
  • Linux, Kernel 2.4.22 pre10
  • Linux, Kernel 2.4.22 pre4
  • Linux, Kernel 2.4.23 pre1
  • Linux, Kernel 2.4.23 pre3
  • Linux, Kernel 2.4.23 pre2
  • Linux, Kernel 2.4.23 pre8
  • Linux, Kernel 2.4.23 pre7
  • Linux, Kernel 2.4.23 pre6
  • Linux, Kernel 2.4.23 pre4
  • Linux, Kernel 2.4.23 pre5
  • Linux, Kernel 2.4.23 ow2
  • Linux, Kernel 2.4.23 pre9
  • Linux, Kernel 2.4.23
  • Linux, Kernel 2.4.24
  • Linux, Kernel 2.4.24 ow1
  • Linux, Kernel 2.4.25
  • Linux, Kernel 2.4.26
  • Linux, Kernel 2.4.27 pre1
  • Linux, Kernel 2.4.27 pre2
  • Linux, Kernel 2.4.27 pre5
  • Linux, Kernel 2.4.27 pre3
  • Linux, Kernel 2.4.27 pre4
  • Linux, Kernel 2.4.27
  • Linux, Kernel 2.4.28
  • Linux, Kernel 2.4.29 rc1
  • Linux, Kernel 2.4.3 pre3
  • Linux, Kernel 2.4.3 pre1
  • Linux, Kernel 2.4.3 pre2
  • 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 pre3
  • Linux, Kernel 2.4.9 pre2
  • Linux, Kernel 2.4.9 pre1
  • Linux, Kernel 2.4.9 pre5
  • Linux, Kernel 2.4.9 pre4
  • Linux, Kernel 2.4.9
  • Linux, Kernel 2.6.0 test7
  • 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 test5
  • Linux, Kernel 2.6.0 test6
  • Linux, Kernel 2.6.0 test9
  • Linux, Kernel 2.6.1 rc3
  • Linux, Kernel 2.6.1 rc2
  • Linux, Kernel 2.6.1 rc1
  • Linux, Kernel 2.6.1
  • Linux, Kernel 2.6.10 rc1
  • Linux, Kernel 2.6.10 rc2
  • Linux, Kernel 2.6.10
  • Linux, Kernel 2.6.10 rc3
  • Linux, Kernel 2.6.2 rc3
  • Linux, Kernel 2.6.2 rc1
  • Linux, Kernel 2.6.2 rc2
  • Linux, Kernel 2.6.2
  • Linux, Kernel 2.6.3 rc3
  • Linux, Kernel 2.6.3 rc4
  • Linux, Kernel 2.6.3 rc1
  • Linux, Kernel 2.6.3 rc2
  • Linux, Kernel 2.6.3
  • Linux, Kernel 2.6.4
  • Linux, Kernel 2.6.4 rc3
  • Linux, Kernel 2.6.4 rc2
  • Linux, Kernel 2.6.4 rc1
  • Linux, Kernel 2.6.5 rc1
  • Linux, Kernel 2.6.5
  • Linux, Kernel 2.6.5 rc2
  • Linux, Kernel 2.6.5 rc3
  • Linux, Kernel 2.6.6 rc3
  • Linux, Kernel 2.6.6
  • Linux, Kernel 2.6.6 rc2
  • Linux, Kernel 2.6.6 rc1
  • Linux, Kernel 2.6.7
  • Linux, Kernel 2.6.7 rc3
  • Linux, Kernel 2.6.7 rc1
  • Linux, Kernel 2.6.7 rc2
  • 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
  • Linux, Kernel 2.6.8.1
  • Linux, Kernel 2.6.9
  • Linux, Kernel 2.6.9 rc4
  • Linux, Kernel 2.6.9 rc2
  • Linux, Kernel 2.6.9 rc3
  • Linux, Kernel 2.6.9 rc1
  • 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
  • MandrakeSoft, Mandrake Linux Corporate Server 2.1 X86_64
  • 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 4 AS
  • RedHat, Enterprise Linux 4 ES
  • RedHat, Enterprise Linux 4 WS
  • RedHat, Enterprise Linux 4 Desktop
  • 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 8.2
  • SuSE, SuSE Linux 9.0
  • SuSE, SuSE Linux 9.1
  • 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

Remedy:

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:
Refer to RHSA-2005:092-14, RHSA-2005:016-13, or RHSA-2005:017-14 for patch, upgrade, or suggested workaround 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 SUSE Linux:
Refer to SUSE-SA:2005:003 for patch, upgrade, or suggested workaround information. See References.

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

Consequences:

Gain Privileges

References:

  • Full-Disclosure Mailing List, Wed Jan 12 2005 - 05:58:18 CST , Linux kernel i386 SMP page fault handler privilege escalation at http://archives.neohapsis.com/archives/fulldisclosure/2005-01/0402.html.
  • BID-12244: Linux Kernel Symmetrical Multiprocessing Page Fault Local Privilege Escalation Vulnerability
  • CVE-2005-0001: Race condition in the page fault handler (fault.c) for Linux kernel 2.2.x to 2.2.7, 2.4 to 2.4.29, and 2.6 to 2.6.10, when running on multiprocessor machines, allows local users to execute arbitrary code via concurrent threads that share the same virtual memory space and simultaneously request stack expansion.
  • 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-2005-016: kernel security update
  • RHSA-2005-017: kernel security update
  • RHSA-2005-092: kernel security update
  • SA13822: Linux Kernel Page Fault Handler Privilege Escalation
  • SECTRACK ID: 1012862: Linux Kernel Multiprocessor Page Fault Handler Race Condition Lets Local Users Gain Elevated Privileges
  • SUSE-SA:2005:003: kernel: local privilege escalation
  • SUSE-SA:2005:005: kernel bugfixes and SP1 merge

Reported:

Jan 12, 2005

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