Linux Kernel execve function denial of service

kernel-execve-dos (52899) The risk level is classified as LowLow Risk

Description:

Linux Kernel is vulnerable to a denial of service, caused by the improper clearing of the current->clear_child_tid pointer by the execve function. A local attacker could exploit this vulnerability using a clone system call with CLONE_CHILD_SETTID or CLONE_CHILD_CLEARTID enabled to corrupt memory to cause a denial of service.

*CVSS:

Base Score: 2.1
  Access Vector: Local
  Access Complexity: Low
  Authentication: None
  Confidentiality Impact: None
  Integrity Impact: None
  Availability Impact: Partial
 
Temporal Score: 1.7
  Exploitability: Unproven
  Remediation Level: Unavailable
  Report Confidence: Uncorroborated

Consequences:

Denial of Service

Remedy:

Apply the appropriate patch for your system. See References.

References:

  • oss-security Mailing List, Tue, 04 Aug 2009 16:09:09 +0800: CVE request - kernel: execve: must clear current->clear_child_tid.
  • oss-security Mailing List, Wed, 5 Aug 2009 15:26:21 -0400: Re: CVE request - kernel: execve: must clear current->clear_child_tid.
  • The Linux Kernel Archives Web site: The Linux Kernel.
  • CVE-2009-2848: The execve function in the Linux kernel, possibly 2.6.30-rc6 and earlier, does not properly clear the current->clear_child_tid pointer, which allows local users to cause a denial of service (memory corruption) or possibly gain privileges via a clone system call with CLONE_CHILD_SETTID or CLONE_CHILD_CLEARTID enabled, which is not properly handled during thread creation and exit.
  • DSA-1928: linux-2.6.24 -- privilege escalation/denial of service/sensitive memory leak
  • RHSA-2009-1239: Important: kernel-rt security and bug fix update
  • RHSA-2009-1243: Important: Red Hat Enterprise Linux 5.4 kernel security and bug fix update
  • RHSA-2009-1438: Important: kernel security and bug fix update
  • RHSA-2009-1466: Important: kernel security and bug fix update
  • RHSA-2009-1550: Important: kernel security and bug fix update
  • SA35983: Linux Kernel "clear_child_tid" Memory Corruption
  • SA36735: VMware Workstation 5 VMnc Codec Multiple Vulnerabilities
  • SA36759: Red Hat update for kernel
  • SA37055: VMware Products DHCP and JRE Multiple Vulnerabilities
  • USN-852-1: Linux kernel vulnerabilities
  • VUPEN/ADV-2009-3316: VMware Products Multiple Code Execution and Security Bypass Issues

Platforms Affected:

  • Canonical Ubuntu 6.06 LTS
  • Canonical Ubuntu 8.04 LTS
  • Canonical Ubuntu 8.10
  • Debian Debian Linux 4.0
  • Linux Kernel 2.2.27
  • Linux Kernel 2.4.36
  • Linux Kernel 2.4.36.1
  • Linux Kernel 2.4.36.2
  • Linux Kernel 2.4.36.3
  • Linux Kernel 2.4.36.4
  • Linux Kernel 2.4.36.5
  • Linux Kernel 2.4.36.6
  • Linux Kernel 2.6.0
  • Linux Kernel 2.6.1
  • Linux Kernel 2.6.10
  • 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
  • Linux Kernel 2.6.12.1
  • Linux Kernel 2.6.12.2
  • 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
  • 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
  • Linux Kernel 2.6.14.1
  • Linux Kernel 2.6.14.2
  • Linux Kernel 2.6.14.3
  • Linux Kernel 2.6.14.4
  • Linux Kernel 2.6.14.5
  • Linux Kernel 2.6.14.6
  • Linux Kernel 2.6.14.7
  • Linux Kernel 2.6.15
  • Linux Kernel 2.6.15.1
  • Linux Kernel 2.6.15.2
  • Linux Kernel 2.6.15.3
  • Linux Kernel 2.6.15.4
  • Linux Kernel 2.6.15.5
  • Linux Kernel 2.6.15.6
  • Linux Kernel 2.6.15.7
  • Linux Kernel 2.6.16
  • Linux Kernel 2.6.16.1
  • Linux Kernel 2.6.16.10
  • Linux Kernel 2.6.16.11
  • Linux Kernel 2.6.16.12
  • Linux Kernel 2.6.16.13
  • Linux Kernel 2.6.16.14
  • Linux Kernel 2.6.16.15
  • Linux Kernel 2.6.16.16
  • Linux Kernel 2.6.16.17
  • Linux Kernel 2.6.16.18
  • Linux Kernel 2.6.16.19
  • Linux Kernel 2.6.16.2
  • Linux Kernel 2.6.16.20
  • Linux Kernel 2.6.16.21
  • Linux Kernel 2.6.16.22
  • Linux Kernel 2.6.16.23
  • Linux Kernel 2.6.16.24
  • Linux Kernel 2.6.16.25
  • Linux Kernel 2.6.16.26
  • Linux Kernel 2.6.16.27
  • Linux Kernel 2.6.16.28
  • Linux Kernel 2.6.16.29
  • Linux Kernel 2.6.16.3
  • Linux Kernel 2.6.16.30
  • Linux Kernel 2.6.16.31
  • Linux Kernel 2.6.16.32
  • Linux Kernel 2.6.16.33
  • Linux Kernel 2.6.16.34
  • Linux Kernel 2.6.16.35
  • Linux Kernel 2.6.16.36
  • Linux Kernel 2.6.16.37
  • Linux Kernel 2.6.16.38
  • Linux Kernel 2.6.16.39
  • Linux Kernel 2.6.16.4
  • Linux Kernel 2.6.16.40
  • Linux Kernel 2.6.16.41
  • Linux Kernel 2.6.16.42
  • Linux Kernel 2.6.16.43
  • Linux Kernel 2.6.16.44
  • Linux Kernel 2.6.16.45
  • Linux Kernel 2.6.16.46
  • Linux Kernel 2.6.16.47
  • Linux Kernel 2.6.16.48
  • Linux Kernel 2.6.16.49
  • Linux Kernel 2.6.16.5
  • Linux Kernel 2.6.16.50
  • Linux Kernel 2.6.16.51
  • Linux Kernel 2.6.16.52
  • Linux Kernel 2.6.16.53
  • Linux Kernel 2.6.16.54
  • Linux Kernel 2.6.16.55
  • Linux Kernel 2.6.16.56
  • Linux Kernel 2.6.16.57
  • Linux Kernel 2.6.16.58
  • Linux Kernel 2.6.16.59
  • Linux Kernel 2.6.16.6
  • Linux Kernel 2.6.16.60
  • Linux Kernel 2.6.16.61
  • Linux Kernel 2.6.16.62
  • Linux Kernel 2.6.16.7
  • Linux Kernel 2.6.16.8
  • Linux Kernel 2.6.16.9
  • Linux Kernel 2.6.17
  • Linux Kernel 2.6.17.1
  • Linux Kernel 2.6.17.10
  • Linux Kernel 2.6.17.11
  • Linux Kernel 2.6.17.12
  • Linux Kernel 2.6.17.13
  • Linux Kernel 2.6.17.14
  • Linux Kernel 2.6.17.2
  • Linux Kernel 2.6.17.3
  • Linux Kernel 2.6.17.4
  • Linux Kernel 2.6.17.5
  • Linux Kernel 2.6.17.6
  • Linux Kernel 2.6.17.7
  • Linux Kernel 2.6.17.8
  • Linux Kernel 2.6.17.9
  • Linux Kernel 2.6.18 rc5
  • Linux Kernel 2.6.18 rc2
  • Linux Kernel 2.6.18 rc1
  • Linux Kernel 2.6.18 rc3
  • Linux Kernel 2.6.18 rc4
  • Linux Kernel 2.6.18 rc6
  • Linux Kernel 2.6.18 rc7
  • Linux Kernel 2.6.18
  • Linux Kernel 2.6.18.1
  • Linux Kernel 2.6.18.2
  • Linux Kernel 2.6.18.3
  • Linux Kernel 2.6.18.4
  • Linux Kernel 2.6.18.5
  • Linux Kernel 2.6.18.6
  • Linux Kernel 2.6.18.7
  • Linux Kernel 2.6.18.8
  • Linux Kernel 2.6.19
  • 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
  • Linux Kernel 2.6.20
  • Linux Kernel 2.6.20.1
  • Linux Kernel 2.6.20.10
  • Linux Kernel 2.6.20.11
  • Linux Kernel 2.6.20.12
  • Linux Kernel 2.6.20.13
  • Linux Kernel 2.6.20.14
  • Linux Kernel 2.6.20.15
  • 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 2.6.20.2
  • Linux Kernel 2.6.20.20
  • Linux Kernel 2.6.20.21
  • Linux Kernel 2.6.20.3
  • Linux Kernel 2.6.20.4
  • Linux Kernel 2.6.20.5
  • Linux Kernel 2.6.20.6
  • Linux Kernel 2.6.20.7
  • Linux Kernel 2.6.20.8
  • Linux Kernel 2.6.20.9
  • Linux Kernel 2.6.21
  • Linux Kernel 2.6.21.1
  • Linux Kernel 2.6.21.2
  • Linux Kernel 2.6.21.3
  • Linux Kernel 2.6.21.4
  • Linux Kernel 2.6.21.5
  • Linux Kernel 2.6.21.6
  • Linux Kernel 2.6.21.7
  • Linux Kernel 2.6.22
  • Linux Kernel 2.6.22 Rc1
  • Linux Kernel 2.6.22 Rc7
  • Linux Kernel 2.6.22.1
  • Linux Kernel 2.6.22.10
  • Linux Kernel 2.6.22.11
  • Linux Kernel 2.6.22.12
  • Linux Kernel 2.6.22.13
  • Linux Kernel 2.6.22.14
  • Linux Kernel 2.6.22.15
  • Linux Kernel 2.6.22.16
  • Linux Kernel 2.6.22.17
  • Linux Kernel 2.6.22.18
  • Linux Kernel 2.6.22.19
  • Linux Kernel 2.6.22.2
  • Linux Kernel 2.6.22.20
  • Linux Kernel 2.6.22.21
  • Linux Kernel 2.6.22.22
  • Linux Kernel 2.6.22.3
  • Linux Kernel 2.6.22.4
  • Linux Kernel 2.6.22.5
  • Linux Kernel 2.6.22.6
  • Linux Kernel 2.6.22.7
  • Linux Kernel 2.6.22.8
  • Linux Kernel 2.6.22.9
  • Linux Kernel 2.6.23
  • Linux Kernel 2.6.23 rc2
  • Linux Kernel 2.6.23 rc1
  • Linux Kernel 2.6.23.1
  • Linux Kernel 2.6.23.10
  • Linux Kernel 2.6.23.11
  • Linux Kernel 2.6.23.12
  • Linux Kernel 2.6.23.13
  • Linux Kernel 2.6.23.14
  • Linux Kernel 2.6.23.15
  • Linux Kernel 2.6.23.16
  • Linux Kernel 2.6.23.17
  • Linux Kernel 2.6.23.2
  • Linux Kernel 2.6.23.3
  • Linux Kernel 2.6.23.4
  • Linux Kernel 2.6.23.5
  • Linux Kernel 2.6.23.6
  • Linux Kernel 2.6.23.7
  • Linux Kernel 2.6.23.8
  • Linux Kernel 2.6.23.9
  • Linux Kernel 2.6.24 rc1
  • Linux Kernel 2.6.24 rc3
  • Linux Kernel 2.6.24
  • Linux Kernel 2.6.24 rc2
  • Linux Kernel 2.6.24 rc5
  • Linux Kernel 2.6.24 rc4
  • Linux Kernel 2.6.24.1
  • Linux Kernel 2.6.24.2
  • Linux Kernel 2.6.24.3
  • Linux Kernel 2.6.24.4
  • Linux Kernel 2.6.24.5
  • Linux Kernel 2.6.24.6
  • Linux Kernel 2.6.24.7
  • Linux Kernel 2.6.25 X86 64
  • Linux Kernel 2.6.25
  • Linux Kernel 2.6.25.1
  • Linux Kernel 2.6.25.1 X86 64
  • Linux Kernel 2.6.25.10 X86 64
  • Linux Kernel 2.6.25.10
  • Linux Kernel 2.6.25.11 X86 64
  • Linux Kernel 2.6.25.11
  • Linux Kernel 2.6.25.12 X86 64
  • Linux Kernel 2.6.25.12
  • Linux Kernel 2.6.25.13
  • Linux Kernel 2.6.25.14
  • Linux Kernel 2.6.25.15
  • Linux Kernel 2.6.25.16
  • Linux Kernel 2.6.25.17
  • Linux Kernel 2.6.25.18
  • Linux Kernel 2.6.25.19
  • Linux Kernel 2.6.25.2
  • Linux Kernel 2.6.25.2 X86 64
  • Linux Kernel 2.6.25.20
  • Linux Kernel 2.6.25.3
  • Linux Kernel 2.6.25.3 X86 64
  • Linux Kernel 2.6.25.4
  • Linux Kernel 2.6.25.4 X86 64
  • Linux Kernel 2.6.25.5
  • Linux Kernel 2.6.25.5 X86 64
  • Linux Kernel 2.6.25.6
  • Linux Kernel 2.6.25.6 X86 64
  • Linux Kernel 2.6.25.7
  • Linux Kernel 2.6.25.7 X86 64
  • Linux Kernel 2.6.25.8 X86 64
  • Linux Kernel 2.6.25.8
  • Linux Kernel 2.6.25.9 X86 64
  • Linux Kernel 2.6.25.9
  • Linux Kernel 2.6.26
  • Linux Kernel 2.6.26 rc4
  • Linux Kernel 2.6.26.1
  • Linux Kernel 2.6.26.2
  • Linux Kernel 2.6.26.3
  • Linux Kernel 2.6.26.4
  • Linux Kernel 2.6.26.5
  • Linux Kernel 2.6.26.6
  • Linux Kernel 2.6.26.7
  • Linux Kernel 2.6.26.8
  • Linux Kernel 2.6.27 rc6
  • Linux Kernel 2.6.27 rc5
  • Linux Kernel 2.6.27 rc2
  • Linux Kernel 2.6.27 rc1
  • Linux Kernel 2.6.27
  • Linux Kernel 2.6.27 rc9
  • Linux Kernel 2.6.27 rc7
  • Linux Kernel 2.6.27 rc3
  • Linux Kernel 2.6.27 rc4
  • Linux Kernel 2.6.27 rc8
  • Linux Kernel 2.6.27.1
  • Linux Kernel 2.6.27.10
  • Linux Kernel 2.6.27.11
  • Linux Kernel 2.6.27.12
  • Linux Kernel 2.6.27.2
  • Linux Kernel 2.6.27.3
  • Linux Kernel 2.6.27.4
  • Linux Kernel 2.6.27.5
  • Linux Kernel 2.6.27.6
  • Linux Kernel 2.6.27.7
  • Linux Kernel 2.6.27.8
  • Linux Kernel 2.6.27.9
  • Linux Kernel 2.6.28 rc1
  • Linux Kernel 2.6.28 rc6
  • Linux Kernel 2.6.28 rc3
  • Linux Kernel 2.6.28 rc5
  • Linux Kernel 2.6.28 rc2
  • Linux Kernel 2.6.28
  • Linux Kernel 2.6.28 rc7
  • Linux Kernel 2.6.28 rc4
  • Linux Kernel 2.6.28.1
  • Linux Kernel 2.6.28.2
  • Linux Kernel 2.6.28.3
  • Linux Kernel 2.6.28.4
  • Linux Kernel 2.6.28.5
  • Linux Kernel 2.6.28.6
  • Linux Kernel 2.6.28.7
  • Linux Kernel 2.6.28.8
  • Linux Kernel 2.6.28.9
  • Linux Kernel 2.6.29 rc8-KK
  • Linux Kernel 2.6.29 rc2
  • Linux Kernel 2.6.29
  • Linux Kernel 2.6.29 git1
  • Linux Kernel 2.6.29 rc1
  • Linux Kernel 2.6.29 rc2 Git7
  • Linux Kernel 2.6.29.3
  • Linux Kernel 2.6.29.5
  • Linux Kernel 2.6.30
  • Linux Kernel 2.6.30 rc1
  • Linux Kernel 2.6.30 rc2
  • Linux Kernel 2.6.30 rc4 x86 32
  • Linux Kernel 2.6.30 rc5
  • Linux Kernel 2.6.30 rc6
  • Linux Kernel 2.6.30 rc3
  • 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 Desktop
  • RedHat Enterprise Linux 4 ES
  • RedHat Enterprise Linux 4 AS
  • RedHat Enterprise Linux 5
  • RedHat Enterprise Linux 5 Client
  • RedHat Enterprise Linux 5.3.z EUS

Reported:

Aug 04, 2009

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