National Vulnerability Database

National Vulnerability Database

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    Vulnerabilities Detail

CVE-2015-2686 Detail

Description

net/socket.c in the Linux kernel 3.19 before 3.19.3 does not validate certain range data for (1) sendto and (2) recvfrom system calls, which allows local users to gain privileges by leveraging a subsystem that uses the copy_from_iter function in the iov_iter interface, as demonstrated by the Bluetooth subsystem.

Source:  MITRE
Description Last Modified:  05/02/2016

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.8 HIGH
Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 1.8

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 7.2 HIGH
Vector: (AV:L/AC:L/Au:N/C:C/I:C/A:C) (V2 legend)
Impact Subscore: 10.0
Exploitability Subscore: 3.9

Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4de930efc23b92ddf88ce91c405ee645fe6e27ea
http://grsecurity.net/~spender/viro.txt
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.19.3
http://www.openwall.com/lists/oss-security/2015/03/23/14
http://www.securityfocus.com/bid/73286
https://bugzilla.redhat.com/show_bug.cgi?id=1205242
https://github.com/torvalds/linux/commit/4de930efc23b92ddf88ce91c405ee645fe6e27ea

Technical Details

Vulnerability Type (View All)

  • Permissions, Privileges, and Access Control (CWE-264)

Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2015-2686
NVD Published Date:
05/02/2016
NVD Last Modified:
06/27/2016