NULL pointer dereference in QEMU - CVE-2018-20125
Published: December 25, 2018
Vulnerability identifier: #VU16683
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-20125
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: QEMU
Affected software:
QEMU
QEMU
Detailed vulnerability description
The vulnerability allows a local attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in hw/rdma/vmw/pvrdma_cmd.c. A local attacker can trigger excessive memory allocation in create_cq_ring or create_qp_rings and perform a denial of service (DoS) attack.
How to mitigate CVE-2018-20125
Install update from vendor's website.