CVE-2016-3960
published 2016-04-19CVE-2016-3960: Integer overflow in the x86 shadow pagetable code in Xen allows local guest OS users to cause a denial of service (host crash) or possibly gain privileges by…
PriorityP339high8.8CVSS 3.0
AVLACLPRLUINSCCHIHAH
EPSS
0.46%
36.7th percentile
Integer overflow in the x86 shadow pagetable code in Xen allows local guest OS users to cause a denial of service (host crash) or possibly gain privileges by shadowing a superpage mapping.
Affected
11 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | xen | < xen 4.8.0~rc3-1 (bookworm) | xen 4.8.0~rc3-1 (bookworm) |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| oracle | vm_server | — | — |
| oracle | vm_server | — | — |
| oracle | vm_server | — | — |
| xen | xen | >= 0 < 4.8.0~rc3-1 | 4.8.0~rc3-1 |
| xen | xen | >= 0 < 4.8.0~rc3-1 | 4.8.0~rc3-1 |
| xen | xen | >= 0 < 4.8.0~rc3-1 | 4.8.0~rc3-1 |
| xen | xen | >= 0 < 4.8.0~rc3-1 | 4.8.0~rc3-1 |
CVSS provenance
nvdv3.08.8HIGHCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
nvdv2.07.2HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C
osv8.8HIGH
vendor_debian8.8HIGH
vendor_redhat8.8HIGH
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Red Hat
xen: x86 shadow pagetables: address width overflow (XSA-173)
vendor_redhat·2016-04-18·CVSS 8.8
CVE-2016-3960 [HIGH] xen: x86 shadow pagetables: address width overflow (XSA-173)
xen: x86 shadow pagetables: address width overflow (XSA-173)
Integer overflow in the x86 shadow pagetable code in Xen allows local guest OS users to cause a denial of service (host crash) or possibly gain privileges by shadowing a superpage mapping.
Package: xen (Red Hat Enterprise Linux 5) - Will not fix
Debian
CVE-2016-3960: xen - Integer overflow in the x86 shadow pagetable code in Xen allows local guest OS u...
vendor_debian·2016·CVSS 8.8
CVE-2016-3960 [HIGH] CVE-2016-3960: xen - Integer overflow in the x86 shadow pagetable code in Xen allows local guest OS u...
Integer overflow in the x86 shadow pagetable code in Xen allows local guest OS users to cause a denial of service (host crash) or possibly gain privileges by shadowing a superpage mapping.
Scope: local
bookworm: resolved (fixed in 4.8.0~rc3-1)
bullseye: resolved (fixed in 4.8.0~rc3-1)
forky: resolved (fixed in 4.8.0~rc3-1)
sid: resolved (fixed in 4.8.0~rc3-1)
trixie: resolved (fixed in 4.8.0~rc3-1)
GHSA
GHSA-m63c-3j47-fcfw: Integer overflow in the x86 shadow pagetable code in Xen allows local guest OS users to cause a denial of service (host crash) or possibly gain privil
ghsa_unreviewed·2022-05-17
CVE-2016-3960 [HIGH] GHSA-m63c-3j47-fcfw: Integer overflow in the x86 shadow pagetable code in Xen allows local guest OS users to cause a denial of service (host crash) or possibly gain privil
Integer overflow in the x86 shadow pagetable code in Xen allows local guest OS users to cause a denial of service (host crash) or possibly gain privileges by shadowing a superpage mapping.
OSV
CVE-2016-3960: Integer overflow in the x86 shadow pagetable code in Xen allows local guest OS users to cause a denial of service (host crash) or possibly gain privil
osv·2016-04-19·CVSS 8.8
CVE-2016-3960 [HIGH] CVE-2016-3960: Integer overflow in the x86 shadow pagetable code in Xen allows local guest OS users to cause a denial of service (host crash) or possibly gain privil
Integer overflow in the x86 shadow pagetable code in Xen allows local guest OS users to cause a denial of service (host crash) or possibly gain privileges by shadowing a superpage mapping.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2016-3960 xsa173 xen: x86 shadow pagetables: address width overflow (XSA-173) [fedora-all]
bugzilla·2016-04-18·CVSS 8.8
CVE-2016-3960 [HIGH] CVE-2016-3960 xsa173 xen: x86 shadow pagetables: address width overflow (XSA-173) [fedora-all]
CVE-2016-3960 xsa173 xen: x86 shadow pagetables: address width overflow (XSA-173) [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 suppo
Bugzilla
CVE-2016-3960 xsa173 xen: x86 shadow pagetables: address width overflow (XSA-173)
bugzilla·2016-04-05·CVSS 8.8
CVE-2016-3960 [HIGH] CVE-2016-3960 xsa173 xen: x86 shadow pagetables: address width overflow (XSA-173)
CVE-2016-3960 xsa173 xen: x86 shadow pagetables: address width overflow (XSA-173)
ISSUE DESCRIPTION
In the x86 shadow pagetable code, the guest frame number of a
superpage mapping is stored in a 32-bit field. If a shadowed guest
can cause a superpage mapping of a guest-physical address at or above
2^44 to be shadowed, the top bits of the address will be lost, causing
an assertion failure or NULL dereference later on, in code that
removes the shadow.
IMPACT
A HVM guest using shadow pagetables can cause the host to crash.
A PV guest using shadow pagetables (i.e. being migrated) with PV
superpages enabled (which is not the default) can crash the host, or
corrupt hypervisor memory, and so a privilege escalation cannot be
ruled out.
VULNERABLE SYSTEMS
Xen versions from 3.4 onwards are
http://lists.fedoraproject.org/pipermail/package-announce/2016-April/183275.htmlhttp://lists.fedoraproject.org/pipermail/package-announce/2016-May/183350.htmlhttp://lists.fedoraproject.org/pipermail/package-announce/2016-May/184209.htmlhttp://support.citrix.com/article/CTX209443http://www.debian.org/security/2016/dsa-3554http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.htmlhttp://www.securityfocus.com/bid/86318http://www.securitytracker.com/id/1035587http://xenbits.xen.org/xsa/advisory-173.htmlhttp://lists.fedoraproject.org/pipermail/package-announce/2016-April/183275.htmlhttp://lists.fedoraproject.org/pipermail/package-announce/2016-May/183350.htmlhttp://lists.fedoraproject.org/pipermail/package-announce/2016-May/184209.htmlhttp://support.citrix.com/article/CTX209443http://www.debian.org/security/2016/dsa-3554http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.htmlhttp://www.securityfocus.com/bid/86318http://www.securitytracker.com/id/1035587http://xenbits.xen.org/xsa/advisory-173.html
2016-04-19
Published