SB2018031240 - Fedora 27 update for kernel
Published: March 12, 2018 Updated: April 24, 2025
Security Bulletin ID
SB2018031240
Severity
Low
Patch available
YES
Number of vulnerabilities
2
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Race condition (CVE-ID: CVE-2018-7995)
The vulnerability allows a local attacker to cause DoS condition on the target system.The weakness exists in the arch/x86/kernel/cpu/mcheck/mce.c source code due to race condition. A local attacker can trigger memory corruption and cause the service to crash.
2) NULL pointer dereference (CVE-ID: CVE-2018-8043)
The vulnerability allows a local attacker to cause DoS condition on the target system.The weakness exists in the unimac_mdio_probe function in drivers/net/phy/mdio-bcm-unimac.c due to improper validation of certain resource availability. A local attacker can trigger NULL pointer dereference and cause the service to crash.
Remediation
Install update from vendor's website.