Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
EUVDB-ID: #VU63779
Risk: Medium
CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-3713
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error in the UAS (USB Attached SCSI) device emulation of QEMU. A local user can perform a denial of service or escalate privileges on the system.
MitigationUpdate the affected package qemu to the latest version.
Vulnerable software versionsSUSE MicroOS: 5.0
SUSE Linux Enterprise Module for Server Applications: 15-SP2
SUSE Linux Enterprise Module for Basesystem: 15-SP2
qemu-s390-debuginfo: before 4.2.1-11.31.3
qemu-s390: before 4.2.1-11.31.3
qemu-microvm: before 4.2.1-11.31.3
qemu-ui-gtk-debuginfo: before 4.2.1-11.31.3
qemu-ui-gtk: before 4.2.1-11.31.3
qemu-ui-curses-debuginfo: before 4.2.1-11.31.3
qemu-ui-curses: before 4.2.1-11.31.3
qemu-audio-pa-debuginfo: before 4.2.1-11.31.3
qemu-audio-pa: before 4.2.1-11.31.3
qemu-audio-alsa-debuginfo: before 4.2.1-11.31.3
qemu-audio-alsa: before 4.2.1-11.31.3
qemu-ppc-debuginfo: before 4.2.1-11.31.3
qemu-ppc: before 4.2.1-11.31.3
qemu-kvm: before 4.2.1-11.31.3
qemu-ui-spice-app-debuginfo: before 4.2.1-11.31.3
qemu-ui-spice-app: before 4.2.1-11.31.3
qemu-lang: before 4.2.1-11.31.3
qemu-guest-agent-debuginfo: before 4.2.1-11.31.3
qemu-guest-agent: before 4.2.1-11.31.3
qemu-block-ssh-debuginfo: before 4.2.1-11.31.3
qemu-block-ssh: before 4.2.1-11.31.3
qemu-block-rbd-debuginfo: before 4.2.1-11.31.3
qemu-block-rbd: before 4.2.1-11.31.3
qemu-block-iscsi-debuginfo: before 4.2.1-11.31.3
qemu-block-iscsi: before 4.2.1-11.31.3
qemu-block-curl-debuginfo: before 4.2.1-11.31.3
qemu-block-curl: before 4.2.1-11.31.3
qemu-x86-debuginfo: before 4.2.1-11.31.3
qemu-x86: before 4.2.1-11.31.3
qemu-sgabios: before 8-11.31.3
qemu-arm-debuginfo: before 4.2.1-11.31.3
qemu-arm: before 4.2.1-11.31.3
qemu-tools-debuginfo: before 4.2.1-11.31.3
qemu-tools: before 4.2.1-11.31.3
qemu-debugsource: before 4.2.1-11.31.3
qemu-debuginfo: before 4.2.1-11.31.3
qemu: before 4.2.1-11.31.3
External linkshttp://www.suse.com/support/update/announcement/2021/suse-su-20213604-1/
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
EUVDB-ID: #VU58813
Risk: High
CVSSv3.1: 7.8 [CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-3748
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a remote guest to compromise vulnerable system.
The vulnerability exists due to a use-after-free error when in the virtio-net device of QEMU. A malicious guest can trigger the use-after-free error and execute arbitrary code on the host system with QEMU privileges.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
MitigationUpdate the affected package qemu to the latest version.
Vulnerable software versionsSUSE MicroOS: 5.0
SUSE Linux Enterprise Module for Server Applications: 15-SP2
SUSE Linux Enterprise Module for Basesystem: 15-SP2
qemu-s390-debuginfo: before 4.2.1-11.31.3
qemu-s390: before 4.2.1-11.31.3
qemu-microvm: before 4.2.1-11.31.3
qemu-ui-gtk-debuginfo: before 4.2.1-11.31.3
qemu-ui-gtk: before 4.2.1-11.31.3
qemu-ui-curses-debuginfo: before 4.2.1-11.31.3
qemu-ui-curses: before 4.2.1-11.31.3
qemu-audio-pa-debuginfo: before 4.2.1-11.31.3
qemu-audio-pa: before 4.2.1-11.31.3
qemu-audio-alsa-debuginfo: before 4.2.1-11.31.3
qemu-audio-alsa: before 4.2.1-11.31.3
qemu-ppc-debuginfo: before 4.2.1-11.31.3
qemu-ppc: before 4.2.1-11.31.3
qemu-kvm: before 4.2.1-11.31.3
qemu-ui-spice-app-debuginfo: before 4.2.1-11.31.3
qemu-ui-spice-app: before 4.2.1-11.31.3
qemu-lang: before 4.2.1-11.31.3
qemu-guest-agent-debuginfo: before 4.2.1-11.31.3
qemu-guest-agent: before 4.2.1-11.31.3
qemu-block-ssh-debuginfo: before 4.2.1-11.31.3
qemu-block-ssh: before 4.2.1-11.31.3
qemu-block-rbd-debuginfo: before 4.2.1-11.31.3
qemu-block-rbd: before 4.2.1-11.31.3
qemu-block-iscsi-debuginfo: before 4.2.1-11.31.3
qemu-block-iscsi: before 4.2.1-11.31.3
qemu-block-curl-debuginfo: before 4.2.1-11.31.3
qemu-block-curl: before 4.2.1-11.31.3
qemu-x86-debuginfo: before 4.2.1-11.31.3
qemu-x86: before 4.2.1-11.31.3
qemu-sgabios: before 8-11.31.3
qemu-arm-debuginfo: before 4.2.1-11.31.3
qemu-arm: before 4.2.1-11.31.3
qemu-tools-debuginfo: before 4.2.1-11.31.3
qemu-tools: before 4.2.1-11.31.3
qemu-debugsource: before 4.2.1-11.31.3
qemu-debuginfo: before 4.2.1-11.31.3
qemu: before 4.2.1-11.31.3
External linkshttp://www.suse.com/support/update/announcement/2021/suse-su-20213604-1/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.