Risk | Low |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2023-5088 |
CWE-ID | CWE-662 |
Exploitation vector | Local |
Public exploit | N/A |
Vulnerable software Subscribe |
QEMU Client/Desktop applications / Virtualization software |
Vendor | QEMU |
Security Bulletin
This security bulletin contains one low risk vulnerability.
EUVDB-ID: #VU85827
Risk: Low
CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-5088
CWE-ID:
CWE-662 - Improper Synchronization
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to improper synchronization, which causes guest I/O operation otherwise addressed to an arbitrary disk offset to be targeted to offset 0 instead. An L2 guest with a virtual disk (vdiskL2) stored on a virtual disk of an L1 (vdiskL1) hypervisor can read and/or write data to LBA 0 of vdiskL1, potentially gaining control of L1 at its next reboot.
MitigationInstall updates from vendor's website.
Vulnerable software versionsQEMU: All versions
External linkshttp://bugzilla.redhat.com/show_bug.cgi?id=2247283
http://access.redhat.com/security/cve/CVE-2023-5088
http://lore.kernel.org/all/20230921160712.99521-1-simon.rowe@nutanix.com/T/
http://security.netapp.com/advisory/ntap-20231208-0005/
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.
How the attacker can exploit this vulnerability?
The attacker would have to trick the victim to open a a specially crafted file.
The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.