SB2018061405 - Privilege escalation in Linux Kernel 

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Main Vulnerability Database SB2018061405

SB2018061405 - Privilege escalation in Linux Kernel

Published: June 14, 2018

Security Bulletin ID SB2018061405
Severity
Low
Patch available
NO
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 security vulnerability.


1) Memory corruption (CVE-ID: CVE-2018-12233)

The vulnerability allows a local attacker to gain elevated privileges on the target system.

The vulnerability exists in the ea_get function due to boundary error when calling setxattr twice with two different extended attribute names on the same file, as defined in the fs/jfs/xattr.c source code file. A local attacker can create a file or execute a program that submits malicious input, trigger a slab-out-of-bounds condition and cause the system crash or execute arbitrary code with elevated privileges.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References