CVE-2016-10025
published 2017-01-26CVE-2016-10025: VMFUNC emulation in Xen 4.6.x through 4.8.x on x86 systems using AMD virtualization extensions (aka SVM) allows local HVM guest OS users to cause a denial of…
PriorityP418medium5.5CVSS 3.0
AVLACLPRLUINSUCNINAH
EPSS
0.45%
38.2th percentile
VMFUNC emulation in Xen 4.6.x through 4.8.x on x86 systems using AMD virtualization extensions (aka SVM) allows local HVM guest OS users to cause a denial of service (hypervisor crash) by leveraging a missing NULL pointer check.
Affected
23 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| citrix | citrix_adm | — | — |
| citrix | citrix_hypervisor | — | — |
| citrix | citrix_virtual_apps_and_desktops | — | — |
| citrix | endpoint_management | — | — |
| citrix | netscaler_adc | — | — |
| citrix | netscaler_gateway | — | — |
| citrix | xenserver | — | — |
| citrix | xenserver | — | — |
| citrix | xenserver | — | — |
| citrix | xenserver | — | — |
| citrix | xenserver | — | — |
| debian | xen | < xen 4.8.0-1 (bookworm) | xen 4.8.0-1 (bookworm) |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | >= 0 < 4.8.0-1 | 4.8.0-1 |
| xen | xen | >= 0 < 4.8.0-1 | 4.8.0-1 |
| xen | xen | >= 0 < 4.8.0-1 | 4.8.0-1 |
| xen | xen | >= 0 < 4.8.0-1 | 4.8.0-1 |
CVSS provenance
nvdv3.05.5MEDIUMCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvdv2.02.1LOWAV:L/AC:L/Au:N/C:N/I:N/A:P
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
Red Hat
xen: x86: missing NULL pointer check in VMFUNC emulation (XSA-203)
vendor_redhat·2016-12-21·CVSS 5.5
CVE-2016-10025 [MEDIUM] xen: x86: missing NULL pointer check in VMFUNC emulation (XSA-203)
xen: x86: missing NULL pointer check in VMFUNC emulation (XSA-203)
VMFUNC emulation in Xen 4.6.x through 4.8.x on x86 systems using AMD virtualization extensions (aka SVM) allows local HVM guest OS users to cause a denial of service (hypervisor crash) by leveraging a missing NULL pointer check.
Package: xen (Red Hat Enterprise Linux 5) - Not affected
Debian
CVE-2016-10025: xen - VMFUNC emulation in Xen 4.6.x through 4.8.x on x86 systems using AMD virtualizat...
vendor_debian·2016·CVSS 5.5
CVE-2016-10025 [MEDIUM] CVE-2016-10025: xen - VMFUNC emulation in Xen 4.6.x through 4.8.x on x86 systems using AMD virtualizat...
VMFUNC emulation in Xen 4.6.x through 4.8.x on x86 systems using AMD virtualization extensions (aka SVM) allows local HVM guest OS users to cause a denial of service (hypervisor crash) by leveraging a missing NULL pointer check.
Scope: local
bookworm: resolved (fixed in 4.8.0-1)
bullseye: resolved (fixed in 4.8.0-1)
forky: resolved (fixed in 4.8.0-1)
sid: resolved (fixed in 4.8.0-1)
trixie: resolved (fixed in 4.8.0-1)
Citrix
Citrix Security Bulletin CTX219378
vendor_citrix·CVSS 6.0
CVE-2016-10024 [MEDIUM] Citrix Security Bulletin CTX219378
Citrix Security Bulletin CTX219378
CVE References: CVE-2016-10024, CVE-2016-10025, CVE-2025-12101, CVE-2025-62626, CVE-2026-23554, CVE-2026-3055, CVE-2026-4368, CVE-2026-4397
Affected Products: Citrix ADM, Citrix Hypervisor, Citrix Virtual Apps and Desktops, Endpoint Management, NetScaler ADC, NetScaler Gateway, XenServer
GHSA
GHSA-26x4-v2c2-q7rx: VMFUNC emulation in Xen 4
ghsa_unreviewed·2022-05-17
CVE-2016-10025 [MEDIUM] CWE-476 GHSA-26x4-v2c2-q7rx: VMFUNC emulation in Xen 4
VMFUNC emulation in Xen 4.6.x through 4.8.x on x86 systems using AMD virtualization extensions (aka SVM) allows local HVM guest OS users to cause a denial of service (hypervisor crash) by leveraging a missing NULL pointer check.
OSV
CVE-2016-10025: VMFUNC emulation in Xen 4
osv·2017-01-26·CVSS 5.5
CVE-2016-10025 [MEDIUM] CVE-2016-10025: VMFUNC emulation in Xen 4
VMFUNC emulation in Xen 4.6.x through 4.8.x on x86 systems using AMD virtualization extensions (aka SVM) allows local HVM guest OS users to cause a denial of service (hypervisor crash) by leveraging a missing NULL pointer check.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2016-10024 CVE-2016-10025 xen: various flaws [fedora-all]
bugzilla·2016-12-21·CVSS 6.0
CVE-2016-10024 [MEDIUM] CVE-2016-10024 CVE-2016-10025 xen: various flaws [fedora-all]
CVE-2016-10024 CVE-2016-10025 xen: various flaws [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versions of Fedora. While on
Bugzilla
CVE-2016-10025 xsa203 xen: x86: missing NULL pointer check in VMFUNC emulation (XSA-203)
bugzilla·2016-12-08·CVSS 5.5
CVE-2016-10025 [MEDIUM] CVE-2016-10025 xsa203 xen: x86: missing NULL pointer check in VMFUNC emulation (XSA-203)
CVE-2016-10025 xsa203 xen: x86: missing NULL pointer check in VMFUNC emulation (XSA-203)
ISSUE DESCRIPTION
When support for the Intel VMX VMFUNC leaf 0 was added, a new optional
function pointer hvmemul_vmfunc was added to the hvm_emulate_ops
table. As is intended, that new function pointer is NULL on non-VMX
hardware, including AMD SVM hardware. However at a call site, the
necessary NULL check was omitted before the indirect function call.
IMPACT
Malicious guests may cause a hypervisor crash, resulting in a Denial
of Service (DoS).
VULNERABLE SYSTEMS
Xen versions 4.6 and newer are vulnerable. Xen versions 4.5 and earlier
are not vulnerable.
Only HVM guests can exploit the vulnerability. PV guests cannot exploit
the vulnerability.
Only x86 systems using SVM (AMD virtualisation exte
http://www.securityfocus.com/bid/95026http://www.securitytracker.com/id/1037518http://xenbits.xen.org/xsa/advisory-203.htmlhttps://support.citrix.com/article/CTX219378http://www.securityfocus.com/bid/95026http://www.securitytracker.com/id/1037518http://xenbits.xen.org/xsa/advisory-203.htmlhttps://support.citrix.com/article/CTX219378
2017-01-26
Published