SB2012012709 - Permissions, Privileges, and Access Controls in Linux kernel

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2012012709

SB2012012709 - Permissions, Privileges, and Access Controls in Linux kernel

Published: January 27, 2012 Updated: August 11, 2020

Security Bulletin ID SB2012012709
Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2012-0056)

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

The mem_write function in the Linux kernel before 3.2.2, when ASLR is disabled, does not properly check permissions when writing to /proc/<pid>/mem, which allows local users to gain privileges by modifying process memory, as demonstrated by Mempodipper.


Remediation

Install update from vendor's website.

References