Race condition in QEMU - CVE-2018-19489
Published: November 22, 2018 / Updated: November 26, 2018
Vulnerability identifier: #VU16061
CSH Severity: Low
CVSS v4.0: 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/E:U/U:Clear
CVE-ID: CVE-2018-19489
CWE-ID: CWE-362
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: QEMU
Affected software:
QEMU
QEMU
Detailed vulnerability description
The vulnerability allows an adjacent attacker to cause DoS condition on the target system.
The vulnerability exists due to race condition while renaming files on a shared host directory. An adjacent attacker can use-after-free flaw in the VirtFS, host directory sharing via Plan 9 File System(9pfs) support and cause the service to crash.
How to mitigate CVE-2018-19489
Install update from vendor's website.