Risk | High |
Patch available | YES |
Number of vulnerabilities | 2 |
CVE-ID | CVE-2021-3750 CVE-2021-3611 |
CWE-ID | CWE-416 CWE-787 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
QEMU Client/Desktop applications / Virtualization software |
Vendor | QEMU |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
EUVDB-ID: #VU69353
Risk: High
CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-3750
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a remote user to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in the USB EHCI controller emulation of QEMU. A remote guest can trigger a use-after-free error and execute arbitrary code on the host OS.
Install updates from vendor's website.
Vulnerable software versionsQEMU: 6.0.0 - 6.2.0 rc2
External linkshttp://gitlab.com/qemu-project/qemu/-/issues/556
http://bugzilla.redhat.com/show_bug.cgi?id=1999073
http://gitlab.com/qemu-project/qemu/-/issues/541
http://security.netapp.com/advisory/ntap-20220624-0003/
http://security.gentoo.org/glsa/202208-27
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to trick the victim to open a a specially crafted file.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
EUVDB-ID: #VU69352
Risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-3611
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
DescriptionThe vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in the Intel HD Audio device (intel-hda) of QEMU. A remote user of the guest OS trigger an out-of-bounds write and crash the QEMU process on the host.
MitigationInstall updates from vendor's website.
Vulnerable software versionsQEMU: 6.0.0 - 6.2.0 rc2
External linkshttp://bugzilla.redhat.com/show_bug.cgi?id=1973784
http://gitlab.com/qemu-project/qemu/-/issues/542
http://security.netapp.com/advisory/ntap-20220624-0001/
http://security.gentoo.org/glsa/202208-27
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to trick the victim to open a a specially crafted file.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.