Race condition in Xen - CVE-2024-2193

Vulnerability identifier: #VU87374

CSH Severity: Low

CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/U:Clear

CVE-ID: CVE-2024-2193

CWE-ID: CWE-362

Exploitation vector: Local access

Exploit availability: No public exploit available

Affected software:
Xen
Debian Linux
Gentoo Linux
Amazon Linux AMI
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise Software Development Kit 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Server 12
F5OS
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Micro for Rancher
SUSE Linux Enterprise Server 15 SP2 LTSS
SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS
openSUSE Leap
Fedora
Traffix SDC
BIG-IP
BIG-IP Next Central Manager
xen-devel
xen-libs-32bit
xen-tools-domU
xen-libs-debuginfo-32bit
xen-tools-debuginfo
xen-libs
xen-debugsource
xen
xen-tools-domU-debuginfo
xen-doc-html
xen-tools
xen-libs-debuginfo
xen-tools-xendomains-wait-disk
xen-libs-32bit-debuginfo
xen-libs-64bit-debuginfo
xen-libs-64bit
app-emulation/xen
xen (Debian package)
kernel
EMC Cloud Tiering Appliance

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a speculative race condition. A local user can exploit the race and gain unauthorized access to contents of arbitrary host memory, including memory assigned to other guests.

The vulnerability was dubbed GhostRace.

Install updates from vendor's website.

• https://xenbits.xen.org/xsa/advisory-453.html
• https://vusec.net/projects/ghostrace