CVE-2013-4329
published 2013-09-12CVE-2013-4329: The xenlight library (libxl) in Xen 4.0.x through 4.2.x, when IOMMU is disabled, provides access to a busmastering-capable PCI passthrough device before the…
PriorityP423medium6.5CVSS 2.0
AVAACHAuSCCICAC
EPSS
0.53%
41.3th percentile
The xenlight library (libxl) in Xen 4.0.x through 4.2.x, when IOMMU is disabled, provides access to a busmastering-capable PCI passthrough device before the IOMMU setup is complete, which allows local HVM guest domains to gain privileges or cause a denial of service via a DMA instruction.
Affected
20 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | xen | < xen 4.3.0-1 (bookworm) | xen 4.3.0-1 (bookworm) |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | >= 0 < 4.3.0-1 | 4.3.0-1 |
| xen | xen | >= 0 < 4.3.0-1 | 4.3.0-1 |
| xen | xen | >= 0 < 4.3.0-1 | 4.3.0-1 |
| xen | xen | >= 0 < 4.3.0-1 | 4.3.0-1 |
CVSS provenance
nvdv2.06.5MEDIUMAV:A/AC:H/Au:S/C:C/I:C/A:C
osv6.5MEDIUM
vendor_debian6.5MEDIUM
vendor_redhat6.5MEDIUM
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Red Hat
xen: libxl partially sets up HVM passthrough even with disabled iommu
vendor_redhat·2013-09-10·CVSS 6.5
CVE-2013-4329 [MEDIUM] xen: libxl partially sets up HVM passthrough even with disabled iommu
xen: libxl partially sets up HVM passthrough even with disabled iommu
The xenlight library (libxl) in Xen 4.0.x through 4.2.x, when IOMMU is disabled, provides access to a busmastering-capable PCI passthrough device before the IOMMU setup is complete, which allows local HVM guest domains to gain privileges or cause a denial of service via a DMA instruction.
Statement: Not vulnerable.
This issue does not affect the versions of the xen package as shipped with Red Hat Enterprise Linux 5 as it does not provide support for the libxl toolstack.
This issue does not affect Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG 2.
Package: xen (Red Hat Enterprise Linux 5) - Not affected
Debian
CVE-2013-4329: xen - The xenlight library (libxl) in Xen 4.0.x through 4.2.x, when IOMMU is disabled,...
vendor_debian·2013·CVSS 6.5
CVE-2013-4329 [MEDIUM] CVE-2013-4329: xen - The xenlight library (libxl) in Xen 4.0.x through 4.2.x, when IOMMU is disabled,...
The xenlight library (libxl) in Xen 4.0.x through 4.2.x, when IOMMU is disabled, provides access to a busmastering-capable PCI passthrough device before the IOMMU setup is complete, which allows local HVM guest domains to gain privileges or cause a denial of service via a DMA instruction.
Scope: local
bookworm: resolved (fixed in 4.3.0-1)
bullseye: resolved (fixed in 4.3.0-1)
forky: resolved (fixed in 4.3.0-1)
sid: resolved (fixed in 4.3.0-1)
trixie: resolved (fixed in 4.3.0-1)
GHSA
GHSA-m6p7-5mj3-hmp2: The xenlight library (libxl) in Xen 4
ghsa_unreviewed·2022-05-17
CVE-2013-4329 [MEDIUM] GHSA-m6p7-5mj3-hmp2: The xenlight library (libxl) in Xen 4
The xenlight library (libxl) in Xen 4.0.x through 4.2.x, when IOMMU is disabled, provides access to a busmastering-capable PCI passthrough device before the IOMMU setup is complete, which allows local HVM guest domains to gain privileges or cause a denial of service via a DMA instruction.
OSV
CVE-2013-4329: The xenlight library (libxl) in Xen 4
osv·2013-09-12·CVSS 6.5
CVE-2013-4329 [MEDIUM] CVE-2013-4329: The xenlight library (libxl) in Xen 4
The xenlight library (libxl) in Xen 4.0.x through 4.2.x, when IOMMU is disabled, provides access to a busmastering-capable PCI passthrough device before the IOMMU setup is complete, which allows local HVM guest domains to gain privileges or cause a denial of service via a DMA instruction.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2013-4329 xen: libxl partially sets up HVM passthrough even with disabled iommu [fedora-all]
bugzilla·2013-09-10·CVSS 6.5
CVE-2013-4329 [MEDIUM] CVE-2013-4329 xen: libxl partially sets up HVM passthrough even with disabled iommu [fedora-all]
CVE-2013-4329 xen: libxl partially sets up HVM passthrough even with disabled iommu [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 creating a Bodhi update request, please use the bodhi submission link
noted 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
Bodhi notes field when available.
Please n
Bugzilla
CVE-2013-4329 xen: libxl partially sets up HVM passthrough even with disabled iommu
bugzilla·2013-09-10·CVSS 6.5
CVE-2013-4329 [MEDIUM] CVE-2013-4329 xen: libxl partially sets up HVM passthrough even with disabled iommu
CVE-2013-4329 xen: libxl partially sets up HVM passthrough even with disabled iommu
With HVM domains, libxl's setup of PCI passthrough devices does the IOMMU setup after giving (via the device model) the guest access to the hardware and advertising it to the guest.
If the IOMMU is disabled the overall setup fails, but after the device has been made available to the guest; subsequent DMA instructions from the guest to the device will cause wild DMA.
A HVM domain, given access to a device which bus mastering capable in the absence of a functioning IOMMU, can mount a privilege escalation or denial of service attack affecting the whole system.
References:
http://lists.xen.org/archives/html/xen-announce/2013-09/msg00001.html
Acknowledgements:
Red Hat would like to thank the Xen project f
http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.htmlhttp://lists.xen.org/archives/html/xen-devel/2013-07/msg00066.htmlhttp://security.gentoo.org/glsa/glsa-201407-03.xmlhttp://www.debian.org/security/2014/dsa-3006http://www.openwall.com/lists/oss-security/2013/09/10/4http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.htmlhttp://lists.xen.org/archives/html/xen-devel/2013-07/msg00066.htmlhttp://security.gentoo.org/glsa/glsa-201407-03.xmlhttp://www.debian.org/security/2014/dsa-3006http://www.openwall.com/lists/oss-security/2013/09/10/4
2013-09-12
Published