CVE-2017-10923
Xen through 4.8.x does not validate a vCPU array index upon the sending of an SGI, which allows...
Xen through 4.8.x does not validate a vCPU array index upon the sending of an SGI, which allows guest OS users to cause a denial of service (hypervisor crash), aka XSA-225.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
Xen through 4.8.x does not validate a vCPU array index upon the sending of an SGI, which allows guest OS users to cause a denial of service (hypervisor crash), aka XSA-225.
- Record
CVE-2017-10923- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-20
- Updated
- 2026-11-02
CVE List No score
Xen through 4.8.x does not validate a vCPU array index upon the sending of an SGI, which allows guest OS users to cause a denial of service (hypervisor crash), aka XSA-225.
- Record
CVE-2017-10923- Updated
- 2026-11-02
EUVDEUVD-2017-2561 No score
Xen through 4.8.x does not validate a vCPU array index upon the sending of an SGI, which allows guest OS users to cause a denial of service (hypervisor crash), aka XSA-225.
- Record
EUVD-2017-2561- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-83mw-xpgw-63qr
Xen through 4.8.x does not validate a vCPU array index upon the sending of an SGI, which allows...
Xen through 4.8.x does not validate a vCPU array index upon the sending of an SGI, which allows guest OS users to cause a denial of service (hypervisor crash), aka XSA-225.
- Record
GHSA-83mw-xpgw-63qr- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-20
- Updated
- 2026-11-02
OSVALPINE-CVE-2017-10923
Xen through 4.8.x does not validate a vCPU array index upon the sending of an SGI, which allows guest OS users to cause a denial of service (hypervisor crash), aka XSA-225.
- Record
ALPINE-CVE-2017-10923- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSV
Xen through 4.8.x does not validate a vCPU array index upon the sending of an SGI, which allows guest OS users to cause a denial of service (hypervisor crash), aka XSA-225.
- Record
CVE-2017-10923- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2017-10923
Xen through 4.8.x does not validate a vCPU array index upon the sending of an SGI, which allows guest OS users to cause a denial of service (hypervisor crash), aka XSA-225.
- Record
DEBIAN-CVE-2017-10923- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2017-10923
Xen through 4.8.x does not validate a vCPU array index upon the sending of an SGI, which allows guest OS users to cause a denial of service (hypervisor crash), aka XSA-225.
- Record
UBUNTU-CVE-2017-10923- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
xenAlpine:v3.10 |
before 4.9.0-r0 | 4.9.0-r0 |
xenAlpine:v3.11 |
before 4.9.0-r0 | 4.9.0-r0 |
xenAlpine:v3.12 |
before 4.9.0-r0 | 4.9.0-r0 |
xenAlpine:v3.13 |
before 4.9.0-r0 | 4.9.0-r0 |
xenAlpine:v3.14 |
before 4.9.0-r0 | 4.9.0-r0 |
xenAlpine:v3.15 |
before 4.9.0-r0 | 4.9.0-r0 |
xenAlpine:v3.16 |
before 4.9.0-r0 | 4.9.0-r0 |
xenAlpine:v3.17 |
before 4.9.0-r0 | 4.9.0-r0 |
xenAlpine:v3.18 |
before 4.9.0-r0 | 4.9.0-r0 |
xenAlpine:v3.19 |
before 4.9.0-r0 | 4.9.0-r0 |
Show 16 moreShow less
| Package | Affected | Fixed |
|---|---|---|
xenAlpine:v3.20 |
before 4.9.0-r0 | 4.9.0-r0 |
xenAlpine:v3.21 |
before 4.9.0-r0 | 4.9.0-r0 |
xenAlpine:v3.22 |
before 4.9.0-r0 | 4.9.0-r0 |
xenAlpine:v3.23 |
before 4.9.0-r0 | 4.9.0-r0 |
xenAlpine:v3.24 |
before 4.9.0-r0 | 4.9.0-r0 |
xenAlpine:v3.3 |
before 4.6.6-r0 | 4.6.6-r0 |
xenAlpine:v3.4 |
before 4.6.6-r0 | 4.6.6-r0 |
xenAlpine:v3.5 |
before 4.7.3-r0 | 4.7.3-r0 |
xenAlpine:v3.6 |
before 4.8.2-r0 | 4.8.2-r0 |
xenAlpine:v3.7 |
before 4.9.0-r0 | 4.9.0-r0 |
xenAlpine:v3.8 |
before 4.9.0-r0 | 4.9.0-r0 |
xenAlpine:v3.9 |
before 4.9.0-r0 | 4.9.0-r0 |
xenDebian:12 |
before 4.8.1-1+deb9u3 | 4.8.1-1+deb9u3 |
xenDebian:13 |
before 4.8.1-1+deb9u3 | 4.8.1-1+deb9u3 |
xenDebian:14 |
before 4.8.1-1+deb9u3 | 4.8.1-1+deb9u3 |
xenUbuntu:16.04:LTS |
before 4.6.5-0ubuntu1.2, plus listed versions 4.5.1-0ubuntu14.5.1-0ubuntu24.6.0-1ubuntu14.6.0-1ubuntu24.6.0-1ubuntu4 Show 5 moreShow less4.6.0-1ubuntu4.14.6.0-1ubuntu4.24.6.0-1ubuntu4.34.6.5-0ubuntu14.6.5-0ubuntu1.1 |
4.6.5-0ubuntu1.2 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2017-10923 is a medium vulnerability (CVSS 6.5) in Xen, published July 5, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.80%, the 78th percentile. Fixed in xen 4.9.0-r0.