SB2018072622 - Out-of-bounds write in Linux kernel 

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Main Vulnerability Database SB2018072622

SB2018072622 - Out-of-bounds write in Linux kernel

Published: July 26, 2018 Updated: August 27, 2018

Security Bulletin ID SB2018072622
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 security vulnerability.


1) Out-of-bounds write (CVE-ID: CVE-2018-10878)

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

The vulnerability exists due to out-of-bounds write error in the ext4_init_block_bitmap() function in the fourth extended filesystem (ext4). A local attacker can mount and operate a specially crafted ext4 filesystem image, trigger memory corruption and cause the service to crash or execute arbitrary code with elevated privileges.

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


Remediation

Install update from vendor's website.

References