ISS X-Force Database: linux-kernel-open-privilege-escalation(45539): Linux Kernel open.c privilege escalation

Linux Kernel open.c privilege escalation

linux-kernel-open-privilege-escalation (45539)

High Risk

Description:

The Linux Kernel could allow a local attacker to gain elevated privileges on the system, caused by an error in open.c. Setuid and setgid bits are not removed when there is a write to a file. By creating an executable file in a setgid directory using the truncate or ftruncate function in conjunction with memory-mapped I/O, an attacker could gain the privileges of a different group, obtain certain information, and possibly launch further attacks against the system.

*CVSS:

Base Score:	4.4
Access Vector:	Local
Access Complexity:	Medium
Authentication:	None
Confidentiality Impact:	Partial
Integrity Impact:	Partial
Availability Impact:	Partial

Temporal Score:	3.3
Exploitability:	Unproven
Remediation Level:	Official-Fix
Report Confidence:	Confirmed

Consequences:

Gain Privileges

Remedy:

Upgrade to the latest version of the Linux Kernel (2.6.22-rc1or later), available from The Linux Kernel Archives Web site. See References.

References:

Kernel Bug Tracker Bug 8420: open() call allows setgid bit when user is not in new file's group.
oss-security Mailing List, Wed, 24 Sep 2008 14:19:42 -0400 (EDT): Re: CVE request: kernel: open() call allows setgid bit when user is not in new file's group.
Red Hat Bugzilla Bug 463661: CVE-2008-4210 kernel: open() call allows setgid bit when user is not in new file's group.
The Linux Kernel Archives Web site: ChangeLog-2.6.22.
The Linux Kernel Archives Web site: The Linux Kernel Archives.
ASA-2008-482: kernel security and bug fix update (RHSA-2008-0972)
ASA-2009-005: kernel security update (RHSA-2009-0001)
ASA-2009-035: kernel security update (RHSA-2008-0787)
BID-31368: Linux Kernel 'truncate()' Local Privilege Escalation Vulnerability
CVE-2008-4210: fs/open.c in the Linux kernel before 2.6.22 does not properly strip setuid and setgid bits when there is a write to a file, which allows local users to gain the privileges of a different group, and obtain sensitive information or possibly have unspecified other impact, by creating an executable file in a setgid directory through the (1) truncate or (2) ftruncate function in conjunction with memory-mapped I/O.
DSA-1653: linux-2.6 -- denial of service/privilege escalation
MDVSA-2008:220: kernel
MDVSA-2008:220-1: kernel
RHSA-2008-0787: Important: kernel security update
RHSA-2008-0957: Important: kernel security and bug fix update
RHSA-2008-0972: Important: kernel security and bug fix update
RHSA-2008-0973: Important: kernel security and bug fix update
RHSA-2009-0001: Important: kernel security update
SUSE-SA:2008:051: Linux kernel security update
SUSE-SA:2008:056: Linux kernel security problems
SUSE-SA:2008:057: Linux kernel security problems
SUSE-SR:2008:025: SUSE Security Summary Report
USN-679-1: Linux kernel vulnerabilities

Platforms Affected:

Canonical Ubuntu 6.06 LTS
Canonical Ubuntu 7.10
Canonical Ubuntu 8.04 LTS
Canonical Ubuntu 8.10
Debian Debian Linux 4.0
Linux Linux Kernel 2.6.14.1
Linux Kernel 2.6.0 test2
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 2.6.0 test1
Linux Kernel 2.6.0 test10
Linux Kernel 2.6.0 test11
Linux Kernel 2.6.0 test9-cvs
Linux Kernel 2.6.0 test3
Linux Kernel 2.6.0 test4
Linux Kernel 2.6.0 test5
Linux Kernel 2.6.0
Linux Kernel 2.6.1 rc2
Linux Kernel 2.6.1 rc1
Linux Kernel 2.6.1 rc3
Linux Kernel 2.6.1
Linux Kernel 2.6.10 rc2
Linux Kernel 2.6.10 rc3
Linux Kernel 2.6.10 rc1
Linux Kernel 2.6.10
Linux Kernel 2.6.11 rc5
Linux Kernel 2.6.11 rc2
Linux Kernel 2.6.11 rc1-bk6
Linux Kernel 2.6.11 rc3
Linux Kernel 2.6.11 rc4
Linux Kernel 2.6.11 rc1
Linux Kernel 2.6.11
Linux Kernel 2.6.11.1
Linux Kernel 2.6.11.10
Linux Kernel 2.6.11.11
Linux Kernel 2.6.11.12
Linux Kernel 2.6.11.2
Linux Kernel 2.6.11.3
Linux Kernel 2.6.11.4
Linux Kernel 2.6.11.5
Linux Kernel 2.6.11.6
Linux Kernel 2.6.11.7
Linux Kernel 2.6.11.8
Linux Kernel 2.6.11.9
Linux Kernel 2.6.12 rc1
Linux Kernel 2.6.12 rc2
Linux Kernel 2.6.12 rc5
Linux Kernel 2.6.12 rc6
Linux Kernel 2.6.12 rc3
Linux Kernel 2.6.12 rc4
Linux Kernel 2.6.12
Linux Kernel 2.6.12.1
Linux Kernel 2.6.12.12
Linux Kernel 2.6.12.2
Linux Kernel 2.6.12.22
Linux Kernel 2.6.12.3
Linux Kernel 2.6.12.4
Linux Kernel 2.6.12.5
Linux Kernel 2.6.12.6
Linux Kernel 2.6.13 rc4
Linux Kernel 2.6.13 rc3
Linux Kernel 2.6.13 rc7
Linux Kernel 2.6.13 rc6
Linux Kernel 2.6.13 rc5
Linux Kernel 2.6.13 rc2
Linux Kernel 2.6.13 rc1
Linux Kernel 2.6.13
Linux Kernel 2.6.13.1
Linux Kernel 2.6.13.2
Linux Kernel 2.6.13.3
Linux Kernel 2.6.13.4
Linux Kernel 2.6.13.5
Linux Kernel 2.6.14 rc1
Linux Kernel 2.6.14 rc2
Linux Kernel 2.6.14 rc5
Linux Kernel 2.6.14 rc3
Linux Kernel 2.6.14 rc4
Linux Kernel 2.6.14
Linux Kernel 2.6.15 rc1
Linux Kernel 2.6.15 rc2
Linux Kernel 2.6.15 rc5
Linux Kernel 2.6.15 rc6
Linux Kernel 2.6.15 rc7
Linux Kernel 2.6.15 rc3
Linux Kernel 2.6.15 rc4
Linux Kernel 2.6.15.11
Linux Kernel 2.6.16 rc7
Linux Kernel 2.6.17 rc5
Linux Kernel 2.6.17 rc6
Linux Kernel 2.6.17 rc4
Linux Kernel 2.6.17 rc2
Linux Kernel 2.6.17 rc3
Linux Kernel 2.6.17 rc1
Linux Kernel 2.6.18 8.1.8.El5
Linux Kernel 2.6.18.10
Linux Kernel 2.6.18.11
Linux Kernel 2.6.18.12
Linux Kernel 2.6.18.13
Linux Kernel 2.6.18.14
Linux Kernel 2.6.18.15
Linux Kernel 2.6.18.16
Linux Kernel 2.6.18.17
Linux Kernel 2.6.18.18
Linux Kernel 2.6.18.19
Linux Kernel 2.6.18.20
Linux Kernel 2.6.18.21
Linux Kernel 2.6.18.22
Linux Kernel 2.6.18.23
Linux Kernel 2.6.18.24
Linux Kernel 2.6.18.25
Linux Kernel 2.6.18.26
Linux Kernel 2.6.18.27
Linux Kernel 2.6.18.28
Linux Kernel 2.6.18.29
Linux Kernel 2.6.18.30
Linux Kernel 2.6.18.31
Linux Kernel 2.6.18.32
Linux Kernel 2.6.18.33
Linux Kernel 2.6.18.34
Linux Kernel 2.6.18.35
Linux Kernel 2.6.18.36
Linux Kernel 2.6.18.37
Linux Kernel 2.6.18.38
Linux Kernel 2.6.18.39
Linux Kernel 2.6.18.40
Linux Kernel 2.6.18.41
Linux Kernel 2.6.18.42
Linux Kernel 2.6.18.43
Linux Kernel 2.6.18.44
Linux Kernel 2.6.18.45
Linux Kernel 2.6.18.46
Linux Kernel 2.6.18.47
Linux Kernel 2.6.18.48
Linux Kernel 2.6.18.49
Linux Kernel 2.6.18.50
Linux Kernel 2.6.18.51
Linux Kernel 2.6.18.52
Linux Kernel 2.6.18.53
Linux Kernel 2.6.18.9
Linux Kernel 2.6.19 rc1
Linux Kernel 2.6.19
Linux Kernel 2.6.19 rc2
Linux Kernel 2.6.19 rc3
Linux Kernel 2.6.19 rc4
Linux Kernel 2.6.19.0
Linux Kernel 2.6.19.1
Linux Kernel 2.6.19.2
Linux Kernel 2.6.19.3
Linux Kernel 2.6.19.4
Linux Kernel 2.6.19.5
Linux Kernel 2.6.19.6
Linux Kernel 2.6.19.7
Linux Kernel 2.6.2 rc1
Linux Kernel 2.6.2 rc2
Linux Kernel 2.6.2 rc3
Linux Kernel 2.6.20 rc2
Linux Kernel 2.6.20.16
Linux Kernel 2.6.20.17
Linux Kernel 2.6.20.18
Linux Kernel 2.6.20.19
Linux Kernel 2.6.20.20
Linux Kernel 2.6.20.21
Linux Kernel 2.6.21 git5
Linux Kernel 2.6.21 git6
Linux Kernel 2.6.21 git7
Linux Kernel 2.6.21 rc3
Linux Kernel 2.6.21 git4
Linux Kernel 2.6.21 git3
Linux Kernel 2.6.21 git2
Linux Kernel 2.6.21 git1
Linux Kernel 2.6.21 rc7
Linux Kernel 2.6.21 rc6
Linux Kernel 2.6.21 rc4
Linux Kernel 2.6.21 rc5
Linux Kernel 2.6.21.5
Linux Kernel 2.6.21.6
Linux Kernel 2.6.21.7
Linux Kernel 2.6.3 rc3
Linux Kernel 2.6.3 rc2
Linux Kernel 2.6.3 rc1
Linux Kernel 2.6.3 rc4
Linux Kernel 2.6.3
Linux Kernel 2.6.4 rc1
Linux Kernel 2.6.4 rc2
Linux Kernel 2.6.4 rc3
Linux Kernel 2.6.4
Linux Kernel 2.6.5 rc1
Linux Kernel 2.6.5 rc3
Linux Kernel 2.6.5 rc2
Linux Kernel 2.6.5
Linux Kernel 2.6.6 rc3
Linux Kernel 2.6.6 rc2
Linux Kernel 2.6.6 rc1
Linux Kernel 2.6.6
Linux Kernel 2.6.7 rc1
Linux Kernel 2.6.7 rc2
Linux Kernel 2.6.7 rc3
Linux Kernel 2.6.7
Linux Kernel 2.6.8 rc4
Linux Kernel 2.6.8 rc3
Linux Kernel 2.6.8 rc1
Linux Kernel 2.6.8 rc2
Linux Kernel 2.6.8
Linux Kernel 2.6.8.1
Linux Kernel 2.6.8.1.5
Linux Kernel 2.6.9 rc1
Linux Kernel 2.6.9 rc3
Linux Kernel 2.6.9 final
Linux Kernel 2.6.9 rc4
Linux Kernel 2.6.9 rc2
Linux Kernel 2.6.9
Linux Kernel
Linux Linux Kernel 2.6.14.2
Linux Linux Kernel 2.6.14.3
Linux Linux Kernel 2.6.14.4
Linux Linux Kernel 2.6.14.5
Linux Linux Kernel 2.6.14.6
Linux Linux Kernel 2.6.14.7
Linux Linux Kernel 2.6.15
Linux Linux Kernel 2.6.15.1
Linux Linux Kernel 2.6.15.2
Linux Linux Kernel 2.6.15.3
Linux Linux Kernel 2.6.15.4
Linux Linux Kernel 2.6.15.5
Linux Linux Kernel 2.6.15.6
Linux Linux Kernel 2.6.15.7
Linux Linux Kernel 2.6.16
Linux Linux Kernel 2.6.16 rc1
Linux Linux Kernel 2.6.16 rc2
Linux Linux Kernel 2.6.16 rc3
Linux Linux Kernel 2.6.16 rc4
Linux Linux Kernel 2.6.16 rc6
Linux Linux Kernel 2.6.16 rc5
Linux Linux Kernel 2.6.16.1
Linux Linux Kernel 2.6.16.10
Linux Linux Kernel 2.6.16.11
Linux Linux Kernel 2.6.16.12
Linux Linux Kernel 2.6.16.13
Linux Linux Kernel 2.6.16.14
Linux Linux Kernel 2.6.16.15
Linux Linux Kernel 2.6.16.16
Linux Linux Kernel 2.6.16.17
Linux Linux Kernel 2.6.16.18
Linux Linux Kernel 2.6.16.19
Linux Linux Kernel 2.6.16.2
Linux Linux Kernel 2.6.16.20
Linux Linux Kernel 2.6.16.21
Linux Linux Kernel 2.6.16.22
Linux Linux Kernel 2.6.16.23
Linux Linux Kernel 2.6.16.24
Linux Linux Kernel 2.6.16.25
Linux Linux Kernel 2.6.16.26
Linux Linux Kernel 2.6.16.27
Linux Linux Kernel 2.6.16.28
Linux Linux Kernel 2.6.16.29
Linux Linux Kernel 2.6.16.3
Linux Linux Kernel 2.6.16.30
Linux Linux Kernel 2.6.16.31
Linux Linux Kernel 2.6.16.32
Linux Linux Kernel 2.6.16.33
Linux Linux Kernel 2.6.16.34
Linux Linux Kernel 2.6.16.35
Linux Linux Kernel 2.6.16.36
Linux Linux Kernel 2.6.16.37
Linux Linux Kernel 2.6.16.38
Linux Linux Kernel 2.6.16.39
Linux Linux Kernel 2.6.16.4
Linux Linux Kernel 2.6.16.40
Linux Linux Kernel 2.6.16.41
Linux Linux Kernel 2.6.16.43
Linux Linux Kernel 2.6.16.44
Linux Linux Kernel 2.6.16.45
Linux Linux Kernel 2.6.16.46
Linux Linux Kernel 2.6.16.47
Linux Linux Kernel 2.6.16.48
Linux Linux Kernel 2.6.16.49
Linux Linux Kernel 2.6.16.5
Linux Linux Kernel 2.6.16.50
Linux Linux Kernel 2.6.16.51
Linux Linux Kernel 2.6.16.52
Linux Linux Kernel 2.6.16.53
Linux Linux Kernel 2.6.16.6
Linux Linux Kernel 2.6.16.7
Linux Linux Kernel 2.6.16.8
Linux Linux Kernel 2.6.16.9
Linux Linux Kernel 2.6.17
Linux Linux Kernel 2.6.17.1
Linux Linux Kernel 2.6.17.10
Linux Linux Kernel 2.6.17.11
Linux Linux Kernel 2.6.17.12
Linux Linux Kernel 2.6.17.13
Linux Linux Kernel 2.6.17.14
Linux Linux Kernel 2.6.17.2
Linux Linux Kernel 2.6.17.3
Linux Linux Kernel 2.6.17.4
Linux Linux Kernel 2.6.17.5
Linux Linux Kernel 2.6.17.6
Linux Linux Kernel 2.6.17.7
Linux Linux Kernel 2.6.17.8
Linux Linux Kernel 2.6.17.9
Linux Linux Kernel 2.6.18 rc6
Linux Linux Kernel 2.6.18
Linux Linux Kernel 2.6.18 rc7
Linux Linux Kernel 2.6.18 rc5
Linux Linux Kernel 2.6.18 rc4
Linux Linux Kernel 2.6.18 rc3
Linux Linux Kernel 2.6.18 rc2
Linux Linux Kernel 2.6.18 rc1
Linux Linux Kernel 2.6.18.1
Linux Linux Kernel 2.6.18.2
Linux Linux Kernel 2.6.18.3
Linux Linux Kernel 2.6.18.4
Linux Linux Kernel 2.6.18.5
Linux Linux Kernel 2.6.18.6
Linux Linux Kernel 2.6.18.7
Linux Linux Kernel 2.6.18.8
Linux Linux Kernel 2.6.2
Linux Linux Kernel 2.6.20
Linux Linux Kernel 2.6.20.1
Linux Linux Kernel 2.6.20.10
Linux Linux Kernel 2.6.20.11
Linux Linux Kernel 2.6.20.12
Linux Linux Kernel 2.6.20.13
Linux Linux Kernel 2.6.20.14
Linux Linux Kernel 2.6.20.15
Linux Linux Kernel 2.6.20.2
Linux Linux Kernel 2.6.20.3
Linux Linux Kernel 2.6.20.4
Linux Linux Kernel 2.6.20.5
Linux Linux Kernel 2.6.20.6
Linux Linux Kernel 2.6.20.7
Linux Linux Kernel 2.6.20.8
Linux Linux Kernel 2.6.20.9
Linux Linux Kernel 2.6.21
Linux Linux Kernel 2.6.21.1
Linux Linux Kernel 2.6.21.2
Linux Linux Kernel 2.6.21.3
Linux Linux Kernel 2.6.21.4
MandrakeSoft Mandrake Linux Corporate Server 4.0
MandrakeSoft Mandrake Linux Corporate Server 4.0 X86_64
Novell Linux Desktop 9
Novell Linux POS 9
Novell SLE SDK 10 SP1
Novell SLE SDK 10 SP2
Novell SUSE Linux Enterprise 10 SP1 DEBUGINFO
Novell SUSE Linux Enterprise 10 SP2 DEBUGINFO
Novell SUSE Linux Enterprise Desktop 10 SP1
Novell SUSE Linux Enterprise Desktop 10 SP2
Novell SUSE Linux Enterprise Server 10 SP1
Novell SUSE Linux Enterprise Server 10 SP2
RedHat Enterprise Linux 2.1 ES
RedHat Enterprise Linux 2.1 WS
RedHat Enterprise Linux 2.1 AS
RedHat Enterprise Linux 3 Desktop
RedHat Enterprise Linux 3 WS
RedHat Enterprise Linux 3 ES
RedHat Enterprise Linux 3 AS
RedHat Enterprise Linux 4 WS
RedHat Enterprise Linux 4 AS
RedHat Enterprise Linux 4 ES
RedHat Enterprise Linux 4 Desktop
RedHat Enterprise Linux 5 Client
RedHat Enterprise Linux 5
RedHat Linux Advanced Workstation 2.1 Itanium
SuSE Linux Enterprise Server 9
SuSE SuSE SLES 9

Reported:

Sep 24, 2008

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