Memory leak in QEMU - CVE-2021-3544
Published: May 31, 2021
Vulnerability identifier: #VU53679
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-3544
CWE-ID: CWE-401
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: QEMU
Affected software:
QEMU
QEMU
Detailed vulnerability description
The vulnerability allows a remote user to perform DoS attack on the target system.
The vulnerability exists due to multiple memory leaks in the vhost-user-gpu/vhost-user-gpu.c. A remote authenticated user of the guest operating system can force the application to leak memory and perform denial of service attack.
How to mitigate CVE-2021-3544
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
Sources
- http://seclists.org/oss-sec/2021/q2/176
- https://gitlab.com/qemu-project/qemu/-/commit/86dd8fac
- https://gitlab.com/qemu-project/qemu/-/commit/b9f79858
- https://gitlab.com/qemu-project/qemu/-/commit/b7afebcf
- https://gitlab.com/qemu-project/qemu/-/commit/f6091d86
- https://gitlab.com/qemu-project/qemu/-/commit/63736af5