Linux Kernel vhost Driver IOCTL Command Kernel Memory information disclosure : 8/19/2015 10:58:18 AM
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Linux Kernel vhost Driver IOCTL Command Kernel Memory information disclosure
8/16/2015 7:00:00 PM
General
scipID: 77323
Affected: Linux Kernel
Published: 08/17/2015
Risk: problematic
Created: 08/19/2015
Entry: 74.5% complete
Summary
A vulnerability has been found in Linux Kernel (the affected version is unknown) and classified as problematic. Affected by this vulnerability is an unknown function of the component vhost Driver. The manipulation of the argument VHOST_SET_LOG_FD as part of a IOCTL Command leads to a information disclosure vulnerability (kernel memory). As an impact it is known to affect confidentiality.
The weakness was presented 08/17/2015 as Bug 1251839 as confirmed bug report (Bugzilla). The advisory is shared for download at bugzilla.redhat.com. This vulnerability is known as CVE-2015-6252 since 08/17/2015. The exploitation appears to be easy. Attacking locally is a requirement. A single authentication is necessary for exploitation. Technical details of the vulnerability are known, but there is no available exploit.
Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The vulnerability is also documented in the vulnerability database at X-Force (105694). Additional details are provided at seclists.org.CVSS
Base Score: 4.6 (CVSS2#AV:L/AC:L/Au:S/C:C/I:N/A:N) [?]
Temp Score: 3.4 (CVSS2#E:U/RL:OF/RC:C) [?]
CPE
Exploiting
Class: Information disclosure
Local: Yes
Remote: No
Availability: No
Status: Unproven
Countermeasures
Recommended: Patch
Status: Official fix
0-Day Time: 0 days since found
Patch: git.kernel.org
Timeline
08/17/2015 | Advisory disclosed
08/17/2015 | CVE assigned
08/19/2015 | VulDB entry created
08/19/2015 | VulDB entry updated
Sources
Advisory: Bug 1251839
Status: Confirmed
CVE: CVE-2015-6252 (mitre.org) (nvd.nist.org) (cvedetails.com)
X-Force: 105694 – Linux Kernel vhost driver information disclosure
Misc.: seclists.org
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