Linux Kernel snd_ctl_elem_user_tlv information disclosure

linux-kernel-cve20144652-info-disc (94412) The risk level is classified as MediumMedium Risk

Description:

Linux Kernel could allow a local attacker to obtain sensitive information, caused by a race condition in the tlv handler functionality in the snd_ctl_elem_user_tlv function. By leveraging /dev/snd/controlCX access, an attacker could exploit this vulnerability to obtain kernel memory.

*CVSS:

Base Score: 4.7
  Access Vector: Local
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: Complete
  Integrity Impact: None
  Availability Impact: None
 
Temporal Score: 3.5
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Obtain Information

Remedy:

Apply the patch for this vulnerability, available from the Linux Kernel GIT Repository. See References.

References:

  • Linux Kernel GIT Repository: ALSA: control: Protect user controls against concurrent access.
  • CVE-2014-4652: Race condition in the tlv handler functionality in the snd_ctl_elem_user_tlv function in sound/core/control.c in the ALSA control implementation in the Linux kernel before 3.15.2 allows local users to obtain sensitive information from kernel memory by leveraging /dev/snd/controlCX access.
  • RHSA-2014-1083: Important: kernel-rt security and bug fix update

Platforms Affected:

  • Linux Kernel 3.0 rc1
  • Linux Kernel 3.0 rc2
  • Linux Kernel 3.0 rc3
  • Linux Kernel 3.0 rc4
  • Linux Kernel 3.0 rc7
  • Linux Kernel 3.0 rc5
  • Linux Kernel 3.0 rc6
  • Linux Kernel 3.0.1
  • Linux Kernel 3.0.10
  • Linux Kernel 3.0.11
  • Linux Kernel 3.0.12
  • Linux Kernel 3.0.13
  • Linux Kernel 3.0.14
  • Linux Kernel 3.0.15
  • Linux Kernel 3.0.16
  • Linux Kernel 3.0.17
  • Linux Kernel 3.0.18
  • Linux Kernel 3.0.19
  • Linux Kernel 3.0.2
  • Linux Kernel 3.0.20
  • Linux Kernel 3.0.21
  • Linux Kernel 3.0.22
  • Linux Kernel 3.0.23
  • Linux Kernel 3.0.24
  • Linux Kernel 3.0.25
  • Linux Kernel 3.0.26
  • Linux Kernel 3.0.27
  • Linux Kernel 3.0.28
  • Linux Kernel 3.0.29
  • Linux Kernel 3.0.3
  • Linux Kernel 3.0.30
  • Linux Kernel 3.0.31
  • Linux Kernel 3.0.32
  • Linux Kernel 3.0.33
  • Linux Kernel 3.0.34
  • Linux Kernel 3.0.35
  • Linux Kernel 3.0.36
  • Linux Kernel 3.0.37
  • Linux Kernel 3.0.38
  • Linux Kernel 3.0.39
  • Linux Kernel 3.0.4
  • Linux Kernel 3.0.40
  • Linux Kernel 3.0.41
  • Linux Kernel 3.0.42
  • Linux Kernel 3.0.43
  • Linux Kernel 3.0.44
  • Linux Kernel 3.0.45
  • Linux Kernel 3.0.46
  • Linux Kernel 3.0.47
  • Linux Kernel 3.0.48
  • Linux Kernel 3.0.49
  • Linux Kernel 3.0.5
  • Linux Kernel 3.0.50
  • Linux Kernel 3.0.51
  • Linux Kernel 3.0.52
  • Linux Kernel 3.0.53
  • Linux Kernel 3.0.54
  • Linux Kernel 3.0.55
  • Linux Kernel 3.0.56
  • Linux Kernel 3.0.57
  • Linux Kernel 3.0.58
  • Linux Kernel 3.0.59
  • Linux Kernel 3.0.6
  • Linux Kernel 3.0.60
  • Linux Kernel 3.0.61
  • Linux Kernel 3.0.62
  • Linux Kernel 3.0.63
  • Linux Kernel 3.0.64
  • Linux Kernel 3.0.65
  • Linux Kernel 3.0.66
  • Linux Kernel 3.0.67
  • Linux Kernel 3.0.68
  • Linux Kernel 3.0.7
  • Linux Kernel 3.0.8
  • Linux Kernel 3.0.9
  • Linux Kernel 3.1
  • Linux Kernel 3.1 Rc1
  • Linux Kernel 3.1 Rc2
  • Linux Kernel 3.1 Rc3
  • Linux Kernel 3.1 Rc4
  • Linux Kernel 3.1.1
  • Linux Kernel 3.1.10
  • Linux Kernel 3.1.2
  • Linux Kernel 3.1.3
  • Linux Kernel 3.1.4
  • Linux Kernel 3.1.5
  • Linux Kernel 3.1.6
  • Linux Kernel 3.1.7
  • Linux Kernel 3.1.8
  • Linux Kernel 3.1.9
  • Linux Kernel 3.10
  • Linux Kernel 3.10.1
  • Linux Kernel 3.10.10
  • Linux Kernel 3.10.11
  • Linux Kernel 3.10.12
  • Linux Kernel 3.10.13
  • Linux Kernel 3.10.14
  • Linux Kernel 3.10.15
  • Linux Kernel 3.10.16
  • Linux Kernel 3.10.17
  • Linux Kernel 3.10.18
  • Linux Kernel 3.10.19
  • Linux Kernel 3.10.2
  • Linux Kernel 3.10.20
  • Linux Kernel 3.10.21
  • Linux Kernel 3.10.22
  • Linux Kernel 3.10.23
  • Linux Kernel 3.10.24
  • Linux Kernel 3.10.25
  • Linux Kernel 3.10.26
  • Linux Kernel 3.10.27
  • Linux Kernel 3.10.28
  • Linux Kernel 3.10.29
  • Linux Kernel 3.10.3
  • Linux Kernel 3.10.4
  • Linux Kernel 3.10.5
  • Linux Kernel 3.10.6
  • Linux Kernel 3.10.7
  • Linux Kernel 3.10.8
  • Linux Kernel 3.10.9
  • Linux Kernel 3.11
  • Linux Kernel 3.11.1
  • Linux Kernel 3.11.10
  • Linux Kernel 3.11.2
  • Linux Kernel 3.11.3
  • Linux Kernel 3.11.4
  • Linux Kernel 3.11.5
  • Linux Kernel 3.11.6
  • Linux Kernel 3.11.7
  • Linux Kernel 3.11.8
  • Linux Kernel 3.11.9
  • Linux Kernel 3.12
  • Linux Kernel 3.12.1
  • Linux Kernel 3.12.10
  • Linux Kernel 3.12.11
  • Linux Kernel 3.12.12
  • Linux Kernel 3.12.13
  • Linux Kernel 3.12.14
  • Linux Kernel 3.12.15
  • Linux Kernel 3.12.16
  • Linux Kernel 3.12.17
  • Linux Kernel 3.12.2
  • Linux Kernel 3.12.3
  • Linux Kernel 3.12.4
  • Linux Kernel 3.12.5
  • Linux Kernel 3.12.6
  • Linux Kernel 3.12.7
  • Linux Kernel 3.12.8
  • Linux Kernel 3.12.9
  • Linux Kernel 3.13
  • Linux Kernel 3.13.1
  • Linux Kernel 3.13.10
  • Linux Kernel 3.13.11
  • Linux Kernel 3.13.2
  • Linux Kernel 3.13.3
  • Linux Kernel 3.13.4
  • Linux Kernel 3.13.5
  • Linux Kernel 3.13.6
  • Linux Kernel 3.13.7
  • Linux Kernel 3.13.8
  • Linux Kernel 3.13.9
  • Linux Kernel 3.14 rc7
  • Linux Kernel 3.14 rc8
  • Linux Kernel 3.14 rc5
  • Linux Kernel 3.14 rc4
  • Linux Kernel 3.14 rc3
  • Linux Kernel 3.14 rc2
  • Linux Kernel 3.14 rc1
  • Linux Kernel 3.14 rc6
  • Linux Kernel 3.14
  • Linux Kernel 3.14.1
  • Linux Kernel 3.14.2
  • Linux Kernel 3.14.3
  • Linux Kernel 3.14.4
  • Linux Kernel 3.14.5
  • Linux Kernel 3.14.6
  • Linux Kernel 3.14.7
  • Linux Kernel 3.15
  • Linux Kernel 3.2 rc4
  • Linux Kernel 3.2 rc2
  • Linux Kernel 3.2 rc3
  • Linux Kernel 3.2 rc5
  • Linux Kernel 3.2 rc6
  • Linux Kernel 3.2 rc7
  • Linux Kernel 3.2
  • Linux Kernel 3.2.1
  • Linux Kernel 3.2.10
  • Linux Kernel 3.2.11
  • Linux Kernel 3.2.12
  • Linux Kernel 3.2.13
  • Linux Kernel 3.2.14
  • Linux Kernel 3.2.15
  • Linux Kernel 3.2.16
  • Linux Kernel 3.2.17
  • Linux Kernel 3.2.18
  • Linux Kernel 3.2.19
  • Linux Kernel 3.2.2
  • Linux Kernel 3.2.20
  • Linux Kernel 3.2.21
  • Linux Kernel 3.2.22
  • Linux Kernel 3.2.23
  • Linux Kernel 3.2.24
  • Linux Kernel 3.2.25
  • Linux Kernel 3.2.26
  • Linux Kernel 3.2.27
  • Linux Kernel 3.2.28
  • Linux Kernel 3.2.29
  • Linux Kernel 3.2.3
  • Linux Kernel 3.2.30
  • Linux Kernel 3.2.4
  • Linux Kernel 3.2.5
  • Linux Kernel 3.2.6
  • Linux Kernel 3.2.7
  • Linux Kernel 3.2.8
  • Linux Kernel 3.2.9
  • Linux Kernel 3.3 rc7
  • Linux Kernel 3.3 rc4
  • Linux Kernel 3.3 rc3
  • Linux Kernel 3.3 rc6
  • Linux Kernel 3.3 rc5
  • Linux Kernel 3.3 rc2
  • Linux Kernel 3.3 rc1
  • Linux Kernel 3.3
  • Linux Kernel 3.3.1
  • Linux Kernel 3.3.2
  • Linux Kernel 3.3.3
  • Linux Kernel 3.3.4
  • Linux Kernel 3.3.5
  • Linux Kernel 3.3.6
  • Linux Kernel 3.3.7
  • Linux Kernel 3.3.8
  • Linux Kernel 3.4
  • Linux Kernel 3.4 rc7
  • Linux Kernel 3.4 rc6
  • Linux Kernel 3.4 rc5
  • Linux Kernel 3.4 rc4
  • Linux Kernel 3.4 rc3
  • Linux Kernel 3.4 rc2
  • Linux Kernel 3.4 rc1
  • Linux Kernel 3.4.1
  • Linux Kernel 3.4.10
  • Linux Kernel 3.4.11
  • Linux Kernel 3.4.12
  • Linux Kernel 3.4.13
  • Linux Kernel 3.4.14
  • Linux Kernel 3.4.15
  • Linux Kernel 3.4.16
  • Linux Kernel 3.4.17
  • Linux Kernel 3.4.18
  • Linux Kernel 3.4.19
  • Linux Kernel 3.4.2
  • Linux Kernel 3.4.20
  • Linux Kernel 3.4.21
  • Linux Kernel 3.4.22
  • Linux Kernel 3.4.23
  • Linux Kernel 3.4.24
  • Linux Kernel 3.4.25
  • Linux Kernel 3.4.26
  • Linux Kernel 3.4.27
  • Linux Kernel 3.4.28
  • Linux Kernel 3.4.29
  • Linux Kernel 3.4.3
  • Linux Kernel 3.4.30
  • Linux Kernel 3.4.31
  • Linux Kernel 3.4.32
  • Linux Kernel 3.4.33
  • Linux Kernel 3.4.34
  • Linux Kernel 3.4.35
  • Linux Kernel 3.4.36
  • Linux Kernel 3.4.37
  • Linux Kernel 3.4.38
  • Linux Kernel 3.4.39
  • Linux Kernel 3.4.4
  • Linux Kernel 3.4.40
  • Linux Kernel 3.4.41
  • Linux Kernel 3.4.42
  • Linux Kernel 3.4.43
  • Linux Kernel 3.4.44
  • Linux Kernel 3.4.45
  • Linux Kernel 3.4.46
  • Linux Kernel 3.4.47
  • Linux Kernel 3.4.48
  • Linux Kernel 3.4.49
  • Linux Kernel 3.4.5
  • Linux Kernel 3.4.50
  • Linux Kernel 3.4.51
  • Linux Kernel 3.4.52
  • Linux Kernel 3.4.53
  • Linux Kernel 3.4.54
  • Linux Kernel 3.4.55
  • Linux Kernel 3.4.56
  • Linux Kernel 3.4.57
  • Linux Kernel 3.4.58
  • Linux Kernel 3.4.59
  • Linux Kernel 3.4.6
  • Linux Kernel 3.4.60
  • Linux Kernel 3.4.61
  • Linux Kernel 3.4.62
  • Linux Kernel 3.4.63
  • Linux Kernel 3.4.64
  • Linux Kernel 3.4.65
  • Linux Kernel 3.4.66
  • Linux Kernel 3.4.67
  • Linux Kernel 3.4.68
  • Linux Kernel 3.4.69
  • Linux Kernel 3.4.7
  • Linux Kernel 3.4.70
  • Linux Kernel 3.4.71
  • Linux Kernel 3.4.72
  • Linux Kernel 3.4.73
  • Linux Kernel 3.4.74
  • Linux Kernel 3.4.75
  • Linux Kernel 3.4.76
  • Linux Kernel 3.4.77
  • Linux Kernel 3.4.78
  • Linux Kernel 3.4.79
  • Linux Kernel 3.4.8
  • Linux Kernel 3.4.9
  • Linux Kernel 3.5.1
  • Linux Kernel 3.5.2
  • Linux Kernel 3.5.3
  • Linux Kernel 3.5.4
  • Linux Kernel 3.5.5
  • Linux Kernel 3.5.6
  • Linux Kernel 3.5.7
  • Linux Kernel 3.6
  • Linux Kernel 3.6.1
  • Linux Kernel 3.6.10
  • Linux Kernel 3.6.11
  • Linux Kernel 3.6.2
  • Linux Kernel 3.6.3
  • Linux Kernel 3.6.4
  • Linux Kernel 3.6.5
  • Linux Kernel 3.6.6
  • Linux Kernel 3.6.7
  • Linux Kernel 3.6.8
  • Linux Kernel 3.6.9
  • Linux Kernel 3.7
  • Linux Kernel 3.7.1
  • Linux Kernel 3.7.10
  • Linux Kernel 3.7.2
  • Linux Kernel 3.7.3
  • Linux Kernel 3.7.4
  • Linux Kernel 3.7.5
  • Linux Kernel 3.7.6
  • Linux Kernel 3.7.7
  • Linux Kernel 3.7.8
  • Linux Kernel 3.7.9
  • Linux Kernel 3.8.0
  • Linux Kernel 3.8.1
  • Linux Kernel 3.8.10
  • Linux Kernel 3.8.11
  • Linux Kernel 3.8.12
  • Linux Kernel 3.8.13
  • Linux Kernel 3.8.2
  • Linux Kernel 3.8.3
  • Linux Kernel 3.8.4
  • Linux Kernel 3.8.5
  • Linux Kernel 3.8.6
  • Linux Kernel 3.8.7
  • Linux Kernel 3.8.8
  • Linux Kernel 3.8.9
  • Linux Kernel 3.9 rc7
  • Linux Kernel 3.9 rc5
  • Linux Kernel 3.9 rc6
  • Linux Kernel 3.9 rc1
  • Linux Kernel 3.9 rc4
  • Linux Kernel 3.9 rc3
  • Linux Kernel 3.9 rc2
  • Linux Kernel 3.9.0
  • Linux Kernel 3.9.1
  • Linux Kernel 3.9.10
  • Linux Kernel 3.9.11
  • Linux Kernel 3.9.2
  • Linux Kernel 3.9.3
  • Linux Kernel 3.9.4
  • Linux Kernel 3.9.5
  • Linux Kernel 3.9.6
  • Linux Kernel 3.9.7
  • Linux Kernel 3.9.8
  • Linux Kernel 3.9.9
  • RedHat Enterprise MRG 2

Reported:

Jun 18, 2014

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