CVE-2015-8551
published 2016-04-13CVE-2015-8551: The PCI backend driver in Xen, when running on an x86 system and using Linux 3.1.x through 4.3.x as the driver domain, allows local guest administrators to hit…
PriorityP420medium6CVSS 3.1
AVLACLPRHUINSCCNINAH
EPSS
0.45%
36.8th percentile
The PCI backend driver in Xen, when running on an x86 system and using Linux 3.1.x through 4.3.x as the driver domain, allows local guest administrators to hit BUG conditions and cause a denial of service (NULL pointer dereference and host OS crash) by leveraging a system with access to a passed-through MSI or MSI-X capable physical PCI device and a crafted sequence of XEN_PCI_OP_* operations, aka "Linux pciback missing sanity checks."
Affected
20 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | linux | < linux 4.3.3-3 (bookworm) | linux 4.3.3-3 (bookworm) |
| linux | linux_kernel | >= 0 < 4.3.3-3 | 4.3.3-3 |
| linux | linux_kernel | >= 0 < 4.3.3-3 | 4.3.3-3 |
| linux | linux_kernel | >= 0 < 4.3.3-3 | 4.3.3-3 |
| linux | linux_kernel | >= 0 < 4.3.3-3 | 4.3.3-3 |
| linux | linux_kernel | >= 0 < 3.13.0-74.118 | 3.13.0-74.118 |
| linux | linux_kernel | 3.1 – 3.1.10 | — |
| linux | linux_kernel | 4.3.0 – 4.3.6 | — |
| opensuse | opensuse | — | — |
| suse | linux_enterprise_desktop | — | — |
| suse | linux_enterprise_desktop | — | — |
| suse | linux_enterprise_real_time_extension | — | — |
| suse | linux_enterprise_real_time_extension | — | — |
| suse | linux_enterprise_server | — | — |
| suse | linux_enterprise_server | — | — |
| suse | linux_enterprise_software_development_kit | — | — |
| suse | linux_enterprise_software_development_kit | — | — |
| suse | linux_enterprise_workstation_extension | — | — |
CVSS provenance
nvdv3.16.0MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
nvdv2.04.7MEDIUMAV:L/AC:M/Au:N/C:N/I:N/A:C
osv8.2HIGH
vendor_ubuntu8.2HIGH
vendor_debian6.0MEDIUM
vendor_redhat6.0MEDIUM
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GHSA
GHSA-xrr8-pr2x-q64f: The PCI backend driver in Xen, when running on an x86 system and using Linux 3
ghsa_unreviewed·2022-05-13
CVE-2015-8551 [MEDIUM] CWE-476 GHSA-xrr8-pr2x-q64f: The PCI backend driver in Xen, when running on an x86 system and using Linux 3
The PCI backend driver in Xen, when running on an x86 system and using Linux 3.1.x through 4.3.x as the driver domain, allows local guest administrators to hit BUG conditions and cause a denial of service (NULL pointer dereference and host OS crash) by leveraging a system with access to a passed-through MSI or MSI-X capable physical PCI device and a crafted sequence of XEN_PCI_OP_* operations, aka "Linux pciback missing sanity checks."
OSV
CVE-2015-8551: The PCI backend driver in Xen, when running on an x86 system and using Linux 3
osv·2016-04-13·CVSS 6.0
CVE-2015-8551 [MEDIUM] CVE-2015-8551: The PCI backend driver in Xen, when running on an x86 system and using Linux 3
The PCI backend driver in Xen, when running on an x86 system and using Linux 3.1.x through 4.3.x as the driver domain, allows local guest administrators to hit BUG conditions and cause a denial of service (NULL pointer dereference and host OS crash) by leveraging a system with access to a passed-through MSI or MSI-X capable physical PCI device and a crafted sequence of XEN_PCI_OP_* operations, aka "Linux pciback missing sanity checks."
OSV
linux-lts-wily vulnerabilities
osv·2015-12-20·CVSS 8.2
CVE-2015-8550 [HIGH] linux-lts-wily vulnerabilities
linux-lts-wily vulnerabilities
Felix Wilhelm discovered a race condition in the Xen paravirtualized
drivers which can cause double fetch vulnerabilities. An attacker in the
paravirtualized guest could exploit this flaw to cause a denial of service
(crash the host) or potentially execute arbitrary code on the host.
(CVE-2015-8550)
Konrad Rzeszutek Wilk discovered the Xen PCI backend driver does not
perform consistency checks on the device's state. An attacker could exploit this
flaw to cause a denial of service (NULL dereference) on the host.
(CVE-2015-8551)
Konrad Rzeszutek Wilk discovered the Xen PCI backend driver does not
perform consistency checks on the device's state. An attacker could exploit this
flaw to cause a denial of service by flooding the logging system with
WARN() messag
OSV
linux-lts-vivid vulnerabilities
osv·2015-12-20·CVSS 8.2
CVE-2015-8550 [HIGH] linux-lts-vivid vulnerabilities
linux-lts-vivid vulnerabilities
Felix Wilhelm discovered a race condition in the Xen paravirtualized
drivers which can cause double fetch vulnerabilities. An attacker in the
paravirtualized guest could exploit this flaw to cause a denial of service
(crash the host) or potentially execute arbitrary code on the host.
(CVE-2015-8550)
Konrad Rzeszutek Wilk discovered the Xen PCI backend driver does not
perform consistency checks on the device's state. An attacker could exploit this
flaw to cause a denial of service (NULL dereference) on the host.
(CVE-2015-8551)
Konrad Rzeszutek Wilk discovered the Xen PCI backend driver does not
perform consistency checks on the device's state. An attacker could exploit this
flaw to cause a denial of service by flooding the logging system with
WARN() messa
OSV
linux-lts-utopic vulnerabilities
osv·2015-12-19·CVSS 8.2
CVE-2015-8550 [HIGH] linux-lts-utopic vulnerabilities
linux-lts-utopic vulnerabilities
Felix Wilhelm discovered a race condition in the Xen paravirtualized
drivers which can cause double fetch vulnerabilities. An attacker in the
paravirtualized guest could exploit this flaw to cause a denial of service
(crash the host) or potentially execute arbitrary code on the host.
(CVE-2015-8550)
Konrad Rzeszutek Wilk discovered the Xen PCI backend driver does not
perform consistency checks on the device's state. An attacker could exploit this
flaw to cause a denial of service (NULL dereference) on the host.
(CVE-2015-8551)
Konrad Rzeszutek Wilk discovered the Xen PCI backend driver does not
perform consistency checks on the device's state. An attacker could exploit this
flaw to cause a denial of service by flooding the logging system with
WARN() mess
OSV
linux vulnerabilities
osv·2015-12-19·CVSS 8.2
CVE-2015-8550 [HIGH] linux vulnerabilities
linux vulnerabilities
Felix Wilhelm discovered a race condition in the Xen paravirtualized
drivers which can cause double fetch vulnerabilities. An attacker in the
paravirtualized guest could exploit this flaw to cause a denial of service
(crash the host) or potentially execute arbitrary code on the host.
(CVE-2015-8550)
Konrad Rzeszutek Wilk discovered the Xen PCI backend driver does not
perform consistency checks on the device's state. An attacker could exploit this
flaw to cause a denial of service (NULL dereference) on the host.
(CVE-2015-8551)
Konrad Rzeszutek Wilk discovered the Xen PCI backend driver does not
perform consistency checks on the device's state. An attacker could exploit this
flaw to cause a denial of service by flooding the logging system with
WARN() messages causin
Ubuntu
Linux kernel (Wily HWE) vulnerabilities
vendor_ubuntu·2015-12-20·CVSS 8.2
CVE-2015-8550 [HIGH] Linux kernel (Wily HWE) vulnerabilities
Title: Linux kernel (Wily HWE) vulnerabilities
Summary: Several security issues were fixed in the kernel.
Felix Wilhelm discovered a race condition in the Xen paravirtualized
drivers which can cause double fetch vulnerabilities. An attacker in the
paravirtualized guest could exploit this flaw to cause a denial of service
(crash the host) or potentially execute arbitrary code on the host.
(CVE-2015-8550)
Konrad Rzeszutek Wilk discovered the Xen PCI backend driver does not
perform consistency checks on the device's state. An attacker could exploit this
flaw to cause a denial of service (NULL dereference) on the host.
(CVE-2015-8551)
Konrad Rzeszutek Wilk discovered the Xen PCI backend driver does not
perform consistency checks on the device's state. An attacker could exploit this
flaw to
Ubuntu
Linux kernel (Vivid HWE) vulnerabilities
vendor_ubuntu·2015-12-20·CVSS 8.2
CVE-2015-8550 [HIGH] Linux kernel (Vivid HWE) vulnerabilities
Title: Linux kernel (Vivid HWE) vulnerabilities
Summary: Several security issues were fixed in the kernel.
Felix Wilhelm discovered a race condition in the Xen paravirtualized
drivers which can cause double fetch vulnerabilities. An attacker in the
paravirtualized guest could exploit this flaw to cause a denial of service
(crash the host) or potentially execute arbitrary code on the host.
(CVE-2015-8550)
Konrad Rzeszutek Wilk discovered the Xen PCI backend driver does not
perform consistency checks on the device's state. An attacker could exploit this
flaw to cause a denial of service (NULL dereference) on the host.
(CVE-2015-8551)
Konrad Rzeszutek Wilk discovered the Xen PCI backend driver does not
perform consistency checks on the device's state. An attacker could exploit this
flaw t
Ubuntu
Linux kernel (Trusty HWE) vulnerabilities
vendor_ubuntu·2015-12-19·CVSS 8.2
CVE-2015-8550 [HIGH] Linux kernel (Trusty HWE) vulnerabilities
Title: Linux kernel (Trusty HWE) vulnerabilities
Summary: Several security issues were fixed in the kernel.
Felix Wilhelm discovered a race condition in the Xen paravirtualized
drivers which can cause double fetch vulnerabilities. An attacker in the
paravirtualized guest could exploit this flaw to cause a denial of service
(crash the host) or potentially execute arbitrary code on the host.
(CVE-2015-8550)
Konrad Rzeszutek Wilk discovered the Xen PCI backend driver does not
perform consistency checks on the device's state. An attacker could exploit this
flaw to cause a denial of service (NULL dereference) on the host.
(CVE-2015-8551)
Konrad Rzeszutek Wilk discovered the Xen PCI backend driver does not
perform consistency checks on the device's state. An attacker could exploit this
flaw
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2015-12-19·CVSS 8.2
CVE-2015-8550 [HIGH] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the kernel.
Felix Wilhelm discovered a race condition in the Xen paravirtualized
drivers which can cause double fetch vulnerabilities. An attacker in the
paravirtualized guest could exploit this flaw to cause a denial of service
(crash the host) or potentially execute arbitrary code on the host.
(CVE-2015-8550)
Konrad Rzeszutek Wilk discovered the Xen PCI backend driver does not
perform consistency checks on the device's state. An attacker could exploit this
flaw to cause a denial of service (NULL dereference) on the host.
(CVE-2015-8551)
Konrad Rzeszutek Wilk discovered the Xen PCI backend driver does not
perform consistency checks on the device's state. An attacker could exploit this
flaw to cause a de
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2015-12-19·CVSS 8.2
CVE-2015-8550 [HIGH] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the kernel.
Felix Wilhelm discovered a race condition in the Xen paravirtualized
drivers which can cause double fetch vulnerabilities. An attacker in the
paravirtualized guest could exploit this flaw to cause a denial of service
(crash the host) or potentially execute arbitrary code on the host.
(CVE-2015-8550)
Konrad Rzeszutek Wilk discovered the Xen PCI backend driver does not
perform consistency checks on the device's state. An attacker could exploit this
flaw to cause a denial of service (NULL dereference) on the host.
(CVE-2015-8551)
Konrad Rzeszutek Wilk discovered the Xen PCI backend driver does not
perform consistency checks on the device's state. An attacker could exploit this
flaw to cause a de
Ubuntu
Linux kernel (Utopic HWE) vulnerabilities
vendor_ubuntu·2015-12-19·CVSS 8.2
CVE-2015-8550 [HIGH] Linux kernel (Utopic HWE) vulnerabilities
Title: Linux kernel (Utopic HWE) vulnerabilities
Summary: Several security issues were fixed in the kernel.
Felix Wilhelm discovered a race condition in the Xen paravirtualized
drivers which can cause double fetch vulnerabilities. An attacker in the
paravirtualized guest could exploit this flaw to cause a denial of service
(crash the host) or potentially execute arbitrary code on the host.
(CVE-2015-8550)
Konrad Rzeszutek Wilk discovered the Xen PCI backend driver does not
perform consistency checks on the device's state. An attacker could exploit this
flaw to cause a denial of service (NULL dereference) on the host.
(CVE-2015-8551)
Konrad Rzeszutek Wilk discovered the Xen PCI backend driver does not
perform consistency checks on the device's state. An attacker could exploit this
flaw
Red Hat
xen: Linux pciback missing sanity checks leading to crash (XSA-157)
vendor_redhat·2015-12-17·CVSS 6.0
CVE-2015-8551 [MEDIUM] xen: Linux pciback missing sanity checks leading to crash (XSA-157)
xen: Linux pciback missing sanity checks leading to crash (XSA-157)
The PCI backend driver in Xen, when running on an x86 system and using Linux 3.1.x through 4.3.x as the driver domain, allows local guest administrators to hit BUG conditions and cause a denial of service (NULL pointer dereference and host OS crash) by leveraging a system with access to a passed-through MSI or MSI-X capable physical PCI device and a crafted sequence of XEN_PCI_OP_* operations, aka "Linux pciback missing sanity checks."
Package: kernel-xen (Red Hat Enterprise Linux 5) - Will not fix
Debian
CVE-2015-8551: linux - The PCI backend driver in Xen, when running on an x86 system and using Linux 3.1...
vendor_debian·2015·CVSS 6.0
CVE-2015-8551 [MEDIUM] CVE-2015-8551: linux - The PCI backend driver in Xen, when running on an x86 system and using Linux 3.1...
The PCI backend driver in Xen, when running on an x86 system and using Linux 3.1.x through 4.3.x as the driver domain, allows local guest administrators to hit BUG conditions and cause a denial of service (NULL pointer dereference and host OS crash) by leveraging a system with access to a passed-through MSI or MSI-X capable physical PCI device and a crafted sequence of XEN_PCI_OP_* operations, aka "Linux pciback missing sanity checks."
Scope: local
bookworm: resolved (fixed in 4.3.3-3)
bullseye: resolved (fixed in 4.3.3-3)
forky: resolved (fixed in 4.3.3-3)
sid: resolved (fixed in 4.3.3-3)
trixie: resolved (fixed in 4.3.3-3)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2015-8554 CVE-2015-8555 CVE-2015-8550 CVE-2015-8551 CVE-2015-8552 CVE-2015-2150 CVE-2015-8553 xen: various flaws [fedora-all]
bugzilla·2015-12-17·CVSS 4.9
CVE-2015-8554 [MEDIUM] CVE-2015-8554 CVE-2015-8555 CVE-2015-8550 CVE-2015-8551 CVE-2015-8552 CVE-2015-2150 CVE-2015-8553 xen: various flaws [fedora-all]
CVE-2015-8554 CVE-2015-8555 CVE-2015-8550 CVE-2015-8551 CVE-2015-8552 CVE-2015-2150 CVE-2015-8553 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
Bugzilla
CVE-2015-8551 CVE-2015-8552 xsa157 xen: Linux pciback missing sanity checks leading to crash (XSA-157)
bugzilla·2015-12-07·CVSS 6.0
CVE-2015-8551 [MEDIUM] CVE-2015-8551 CVE-2015-8552 xsa157 xen: Linux pciback missing sanity checks leading to crash (XSA-157)
CVE-2015-8551 CVE-2015-8552 xsa157 xen: Linux pciback missing sanity checks leading to crash (XSA-157)
ISSUE DESCRIPTION
Xen PCI backend driver does not perform proper sanity checks on the
device's state.
Which in turn allows the generic MSI code (called by Xen PCI backend) to be
called incorrectly leading to hitting BUG conditions or causing NULL pointer
exceptions in the MSI code.
To exploit this the guest can craft specific sequence of XEN_PCI_OP_*
operations which will trigger this.
Furthermore the frontend can also craft an continous stream of
XEN_PCI_OP_enable_msi which will trigger an continous
stream of WARN() messages triggered by the MSI code leading to the logging
in the initial domain to exhaust disk space.
Lastly there is also missing check to verify whether the device h
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-06/msg00059.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.htmlhttp://www.debian.org/security/2016/dsa-3434http://www.securityfocus.com/bid/79546http://www.securitytracker.com/id/1034480http://xenbits.xen.org/xsa/advisory-157.htmlhttps://security.gentoo.org/glsa/201604-03http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-06/msg00059.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.htmlhttp://www.debian.org/security/2016/dsa-3434http://www.securityfocus.com/bid/79546http://www.securitytracker.com/id/1034480http://xenbits.xen.org/xsa/advisory-157.htmlhttps://security.gentoo.org/glsa/201604-03
2016-04-13
Published