Denial of service in Xen - CVE-2018-14678
Published: August 1, 2018 / Updated: August 1, 2018
Vulnerability identifier: #VU14156
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-14678
CWE-ID: CWE-388
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows an adjacent attacker to cause DoS condition on the target system.
The vulnerability exists due to an uninitialized %ebx state error in a failsafe callback path on x86 PV systems. An adjacent attacker can cause the service to crash.
Affected software
Xen
xen (Alpine package)
kernel-headers
kernel
Linux kernel
Fedora
IBM Systems Director
xen (Alpine package)
kernel-headers
kernel
Linux kernel
Fedora
IBM Systems Director
How to mitigate CVE-2018-14678
Install update from vendor's website.
xen (Alpine package) - update to 4.10.1-r3
kernel-headers - addressed in versions 4.17.11-1.fc27, 4.17.11-1.fc28
kernel - addressed in versions 4.17.11-100.fc27, 4.17.11-200.fc28
kernel-headers - addressed in versions 4.17.11-1.fc27, 4.17.11-1.fc28
kernel - addressed in versions 4.17.11-100.fc27, 4.17.11-200.fc28