SB2016050207 - Permissions, Privileges, and Access Controls in Linux kernel

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Main Vulnerability Database SB2016050207

SB2016050207 - Permissions, Privileges, and Access Controls in Linux kernel

Published: May 2, 2016 Updated: August 9, 2020

Security Bulletin ID SB2016050207
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2015-2686)

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

CVSSv4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a local authenticated user to execute arbitrary code.

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.


Remediation

Install update from vendor's website.

References