Memory leak in QEMU - CVE-2021-3544

Vulnerability identifier: #VU53679

CSH Severity: Medium

CVSS v4: 7.1 [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]

CVE-ID: CVE-2021-3544

CWE-ID: CWE-401

Exploitation vector: Remote access

Exploit availability: No public exploit available

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.

QEMU
Debian Linux
SUSE MicroOS
SUSE Linux Enterprise Module for Server Applications
SUSE Linux Enterprise Module for Basesystem
Ubuntu
openEuler
qemu-system-misc (Ubuntu package)
qemu-system-s390x (Ubuntu package)
qemu-system (Ubuntu package)
qemu-system-x86 (Ubuntu package)
qemu-system-sparc (Ubuntu package)
qemu-system-arm (Ubuntu package)
qemu-system-ppc (Ubuntu package)
qemu-system-mips (Ubuntu package)
qemu-seabios
qemu
qemu-debuginfo
qemu-img
qemu-block-ssh
qemu-block-rbd
qemu-block-iscsi
qemu-debugsource
qemu-help
qemu-guest-agent
qemu-audio-pa
qemu-audio-pa-debuginfo
qemu-ui-curses
qemu-ui-curses-debuginfo
qemu-ui-gtk
qemu-ui-gtk-debuginfo
qemu-microvm
qemu-s390
qemu-s390-debuginfo
qemu-block-curl
qemu-block-ssh-debuginfo
qemu-block-rbd-debuginfo
qemu-block-iscsi-debuginfo
qemu-block-curl-debuginfo
qemu-audio-alsa
qemu-x86-debuginfo
qemu-x86
qemu-arm-debuginfo
qemu-arm
qemu-tools-debuginfo
qemu-tools
qemu-audio-alsa-debuginfo
qemu-ppc-debuginfo
qemu-ppc
qemu-kvm
qemu-ui-spice-app-debuginfo
qemu-ui-spice-app
qemu-lang
qemu-guest-agent-debuginfo
qemu-system-x86-microvm (Ubuntu package)
qemu-system-x86-xen (Ubuntu package)
qemu (Debian package)
qemu-skiboot
qemu-chardev-baum
qemu-hw-s390x-virtio-gpu-ccw-debuginfo
qemu-s390x
qemu-s390x-debuginfo
qemu-hw-s390x-virtio-gpu-ccw
qemu-audio-spice-debuginfo
qemu-hw-usb-redirect-debuginfo
qemu-hw-usb-redirect
qemu-hw-display-virtio-vga-debuginfo
qemu-hw-display-virtio-vga
qemu-hw-display-qxl-debuginfo
qemu-hw-display-qxl
qemu-chardev-spice-debuginfo
qemu-chardev-spice
qemu-audio-spice
qemu-ksm
qemu-chardev-baum-debuginfo
qemu-hw-display-virtio-gpu
qemu-hw-display-virtio-gpu-pci-debuginfo
qemu-hw-display-virtio-gpu-pci
qemu-hw-display-virtio-gpu-debuginfo
qemu-ui-opengl
qemu-ui-spice-core-debuginfo
qemu-ui-opengl-debuginfo
qemu-ui-spice-core
qemu-sgabios

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

qemu-system-misc (Ubuntu package) - addressed in versions 1:2.11+dfsg-1ubuntu7.39, 1:4.2-3ubuntu6.21, 1:6.0+dfsg-2expubuntu1.2
qemu-system-s390x (Ubuntu package) - addressed in versions 1:2.11+dfsg-1ubuntu7.39, 1:4.2-3ubuntu6.21, 1:6.0+dfsg-2expubuntu1.2
qemu-system (Ubuntu package) - addressed in versions 1:2.11+dfsg-1ubuntu7.39, 1:4.2-3ubuntu6.21, 1:6.0+dfsg-2expubuntu1.2
qemu-system-x86 (Ubuntu package) - addressed in versions 1:2.11+dfsg-1ubuntu7.39, 1:4.2-3ubuntu6.21, 1:6.0+dfsg-2expubuntu1.2
qemu-system-sparc (Ubuntu package) - addressed in versions 1:2.11+dfsg-1ubuntu7.39, 1:4.2-3ubuntu6.21, 1:6.0+dfsg-2expubuntu1.2
qemu-system-arm (Ubuntu package) - addressed in versions 1:2.11+dfsg-1ubuntu7.39, 1:4.2-3ubuntu6.21, 1:6.0+dfsg-2expubuntu1.2
qemu-system-ppc (Ubuntu package) - addressed in versions 1:2.11+dfsg-1ubuntu7.39, 1:4.2-3ubuntu6.21, 1:6.0+dfsg-2expubuntu1.2
qemu-system-mips (Ubuntu package) - addressed in versions 1:2.11+dfsg-1ubuntu7.39, 1:4.2-3ubuntu6.21, 1:6.0+dfsg-2expubuntu1.2
qemu-seabios - update to 4.1.0-48
qemu - update to 4.1.0-48
qemu-debuginfo - update to 4.1.0-48
qemu-img - update to 4.1.0-48
qemu-block-ssh - update to 4.1.0-48
qemu-block-rbd - update to 4.1.0-48
qemu-block-iscsi - update to 4.1.0-48
qemu-debugsource - update to 4.1.0-48
qemu-help - update to 4.1.0-48
qemu-guest-agent - update to 4.1.0-48
qemu-audio-pa - addressed in versions 4.2.1-11.22.1, 5.2.0-20.1
qemu-audio-pa-debuginfo - addressed in versions 4.2.1-11.22.1, 5.2.0-20.1
qemu-ui-curses - addressed in versions 4.2.1-11.22.1, 5.2.0-20.1
qemu-ui-curses-debuginfo - addressed in versions 4.2.1-11.22.1, 5.2.0-20.1
qemu-ui-gtk - addressed in versions 4.2.1-11.22.1, 5.2.0-20.1
qemu-ui-gtk-debuginfo - addressed in versions 4.2.1-11.22.1, 5.2.0-20.1
qemu-microvm - update to 4.2.1-11.22.1
qemu-s390 - update to 4.2.1-11.22.1
qemu-s390-debuginfo - update to 4.2.1-11.22.1
qemu-debuginfo - addressed in versions 4.2.1-11.22.1, 5.2.0-20.1
qemu-block-curl - addressed in versions 4.2.1-11.22.1, 5.2.0-20.1
qemu-guest-agent - addressed in versions 4.2.1-11.22.1, 5.2.0-20.1
qemu-block-ssh-debuginfo - addressed in versions 4.2.1-11.22.1, 5.2.0-20.1
qemu-block-ssh - addressed in versions 4.2.1-11.22.1, 5.2.0-20.1
qemu-block-rbd-debuginfo - addressed in versions 4.2.1-11.22.1, 5.2.0-20.1
qemu-block-rbd - addressed in versions 4.2.1-11.22.1, 5.2.0-20.1
qemu-block-iscsi-debuginfo - addressed in versions 4.2.1-11.22.1, 5.2.0-20.1
qemu-block-iscsi - addressed in versions 4.2.1-11.22.1, 5.2.0-20.1
qemu-block-curl-debuginfo - addressed in versions 4.2.1-11.22.1, 5.2.0-20.1
qemu-audio-alsa - addressed in versions 4.2.1-11.22.1, 5.2.0-20.1
qemu-x86-debuginfo - addressed in versions 4.2.1-11.22.1, 5.2.0-20.1
qemu-x86 - addressed in versions 4.2.1-11.22.1, 5.2.0-20.1
qemu-arm-debuginfo - addressed in versions 4.2.1-11.22.1, 5.2.0-20.1
qemu-arm - addressed in versions 4.2.1-11.22.1, 5.2.0-20.1
qemu-tools-debuginfo - addressed in versions 4.2.1-11.22.1, 5.2.0-20.1
qemu-tools - addressed in versions 4.2.1-11.22.1, 5.2.0-20.1
qemu-debugsource - addressed in versions 4.2.1-11.22.1, 5.2.0-20.1
qemu - addressed in versions 4.2.1-11.22.1, 5.2.0-20.1
qemu-audio-alsa-debuginfo - addressed in versions 4.2.1-11.22.1, 5.2.0-20.1
qemu-ppc-debuginfo - addressed in versions 4.2.1-11.22.1, 5.2.0-20.1
qemu-ppc - addressed in versions 4.2.1-11.22.1, 5.2.0-20.1
qemu-kvm - addressed in versions 4.2.1-11.22.1, 5.2.0-20.1
qemu-ui-spice-app-debuginfo - addressed in versions 4.2.1-11.22.1, 5.2.0-20.1
qemu-ui-spice-app - addressed in versions 4.2.1-11.22.1, 5.2.0-20.1
qemu-lang - addressed in versions 4.2.1-11.22.1, 5.2.0-20.1
qemu-guest-agent-debuginfo - addressed in versions 4.2.1-11.22.1, 5.2.0-20.1
qemu-system-x86-microvm (Ubuntu package) - addressed in versions 1:4.2-3ubuntu6.21, 1:6.0+dfsg-2expubuntu1.2
qemu-system-x86-xen (Ubuntu package) - addressed in versions 1:4.2-3ubuntu6.21, 1:6.0+dfsg-2expubuntu1.2
qemu (Debian package) - update to 1:5.2+dfsg-11+deb11u1
qemu-skiboot - update to 5.2.0-20.1
qemu-chardev-baum - update to 5.2.0-20.1
qemu-hw-s390x-virtio-gpu-ccw-debuginfo - update to 5.2.0-20.1
qemu-s390x - update to 5.2.0-20.1
qemu-s390x-debuginfo - update to 5.2.0-20.1
qemu-hw-s390x-virtio-gpu-ccw - update to 5.2.0-20.1
qemu-audio-spice-debuginfo - update to 5.2.0-20.1
qemu-hw-usb-redirect-debuginfo - update to 5.2.0-20.1
qemu-hw-usb-redirect - update to 5.2.0-20.1
qemu-hw-display-virtio-vga-debuginfo - update to 5.2.0-20.1
qemu-hw-display-virtio-vga - update to 5.2.0-20.1
qemu-hw-display-qxl-debuginfo - update to 5.2.0-20.1
qemu-hw-display-qxl - update to 5.2.0-20.1
qemu-chardev-spice-debuginfo - update to 5.2.0-20.1
qemu-chardev-spice - update to 5.2.0-20.1
qemu-audio-spice - update to 5.2.0-20.1
qemu-ksm - update to 5.2.0-20.1
qemu-chardev-baum-debuginfo - update to 5.2.0-20.1
qemu-hw-display-virtio-gpu - update to 5.2.0-20.1
qemu-hw-display-virtio-gpu-pci-debuginfo - update to 5.2.0-20.1
qemu-hw-display-virtio-gpu-pci - update to 5.2.0-20.1
qemu-hw-display-virtio-gpu-debuginfo - update to 5.2.0-20.1
qemu-ui-opengl - update to 5.2.0-20.1
qemu-ui-spice-core-debuginfo - update to 5.2.0-20.1
qemu-ui-opengl-debuginfo - update to 5.2.0-20.1
qemu-ui-spice-core - update to 5.2.0-20.1
qemu-sgabios - addressed in versions 8-11.22.1, 8-20.1

• 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

• Multiple vulnerabilities in QEMU
• SUSE update for qemu
• SUSE update for qemu
• Ubuntu update for qemu
• Debian update for qemu
• openEuler 20.03 LTS SP1 update for qemu