SB2014101802 - Fedora 21 update for kernel
Published: October 18, 2014 Updated: April 24, 2025
Security Bulletin ID
SB2014101802
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Race condition (CVE-ID: CVE-2014-8086)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
Race condition in the ext4_file_write_iter function in fs/ext4/file.c in the Linux kernel through 3.17 allows local users to cause a denial of service (file unavailability) via a combination of a write action and an F_SETFL fcntl operation for the O_DIRECT flag.
Remediation
Install update from vendor's website.