SB2018073033 - Out-of-bounds write in Linux kernel
Published: July 30, 2018 Updated: June 1, 2020
Security Bulletin ID
SB2018073033
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Out-of-bounds write (CVE-ID: CVE-2018-10883)
The vulnerability allows a local authenticated user to perform a denial of service (DoS) attack.
A flaw was found in the Linux kernel's ext4 filesystem. A local user can cause an out-of-bounds write in jbd2_journal_dirty_metadata(), a denial of service, and a system crash by mounting and operating on a crafted ext4 filesystem image.
Remediation
Install update from vendor's website.
References
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.55
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.17.6
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.140
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.135
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.164