SB2018061716 - Fedora 27 update for kernel
Published: June 17, 2018 Updated: April 24, 2025
Security Bulletin ID
SB2018061716
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) Race condition (CVE-ID: CVE-2018-12232)
The vulnerability allows a local attacker to cause DoS condition on the target system.
The vulnerability exists in the net/socket.c source code file due to the fchownat() function does not increment the reference count of a socket file descriptor, which could trigger a race condition between the sock_close() and sockfs_setattr() functions. A local attacker can submit specially crafted input, trigger a NULL pointer dereference condition and cause the system to crash..
Remediation
Install update from vendor's website.