Use-after-free in QEMU - CVE-2023-2680

Vulnerability identifier: #VU83438

CSH Severity: High

CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2023-2680

CWE-ID: CWE-416

Exploitation vector: Remote access

Exploit availability: No public exploit available

The 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.

Note, the vulnerability exists due to incomplete fix for #VU69353 (CVE-2021-3750).

QEMU
Oracle Linux
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
qemu-kvm (Red Hat package)

Install updates from vendor's website.

qemu-kvm (Red Hat package) - update to 8.0.0-16.el9_3

• https://bugzilla.redhat.com/show_bug.cgi?id=2203387
• https://access.redhat.com/security/cve/CVE-2023-2680
• https://security.netapp.com/advisory/ntap-20231116-0001/

• Multiple vulnerabilities in Oracle Linux
• Red Hat Enterprise Linux 9 update for qemu-kvm