Summary: | <app-emulation/xen-4.3.2: libxl partially sets up HVM passthrough even with disabled iommu (CVE-2013-4329) | ||
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Product: | Gentoo Security | Reporter: | Agostino Sarubbo <ago> |
Component: | Vulnerabilities | Assignee: | Gentoo Security <security> |
Status: | RESOLVED FIXED | ||
Severity: | minor | CC: | idella4, xen |
Priority: | Normal | ||
Version: | unspecified | ||
Hardware: | All | ||
OS: | Linux | ||
URL: | http://www.openwall.com/lists/oss-security/2013/09/10/3 | ||
Whiteboard: | B3 [glsa] | ||
Package list: | Runtime testing required: | --- |
Description
Agostino Sarubbo
2013-09-10 14:07:27 UTC
this is fixed in xen-4.2.3 CVE-2013-4329 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-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 IOMMU setup is complete, which allows local HVM guest domains to gain privileges or cause a denial of service via a DMA instruction. see comment#1, this is already fixed in >=xen-4.3.2, so no in tree versions are affected. thanks Arches and Mainter(s), Thank you for your work. Added to an existing GLSA request. This issue was resolved and addressed in GLSA 201407-03 at http://security.gentoo.org/glsa/glsa-201407-03.xml by GLSA coordinator Mikle Kolyada (Zlogene). |