Linux Kernel perf_callchain_user_64 denial of service : 8/21/2015 4:38:01 AM
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Linux Kernel perf_callchain_user_64 denial of service
8/18/2015 7:00:00 PM
General
scipID: 77368
Affected: Linux Kernel
Published: 08/19/2015
Risk: problematic
Created: 08/21/2015
Entry: 71.9% complete
Summary
A vulnerability has been found in Linux Kernel (the affected version is unknown) and classified as problematic. This vulnerability affects the function perf_callchain_user_64. The manipulation with an unknown input leads to a denial of service vulnerability (kill). As an impact it is known to affect availability.
The weakness was presented 08/19/2015 as Bug 1218454 as confirmed bug report (Bugzilla). The advisory is shared for download at bugzilla.redhat.com. This vulnerability was named CVE-2015-6526. The exploitation appears to be easy. The attack needs to be approached locally. A single authentication is necessary for exploitation. There are known technical details, but no exploit is available.
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 (105798). Additional details are provided at seclists.org.CVSS
Base Score: 1.7 (CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:P) [?]
Temp Score: 1.3 (CVSS2#E:U/RL:OF/RC:C) [?]
CPE
Exploiting
Class: Denial of service
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
08/19/2015 | Advisory disclosed
08/21/2015 | VulDB entry created
08/21/2015 | VulDB entry updated
Sources
Advisory: Bug 1218454
Status: Confirmed
CVE: CVE-2015-6526 (mitre.org) (nvd.nist.org) (cvedetails.com)
X-Force: 105798 – Linux Kernel perf_callchain_user_64 denial of service
Misc.: seclists.org
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