UpHeron
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Servers and applications

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.

Severity
Medium 6.5
Published
12 Sept 2013
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
0.5% in the next 30 daysHigher than 45% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
CWE-264
Attack
From the same local network · Only under certain conditions · Needs a login
Attacker can
Read data · Change data · Take it down
CVSS vector
AV:A/AC:H/Au:S/C:C/I:C/A:C
Sources
NVD

Affected software

SoftwareAffected versions
XenServers and applications · cpe:o:xen:xen
  • Version 4.2.3
  • Version 4.2.2
  • Version 4.2.1
  • Version 4.2.0
All 15 release lines
  • Version 4.0.0
  • Version 4.0.1
  • Version 4.0.2
  • Version 4.0.3
  • Version 4.0.4
  • Version 4.1.0
  • Version 4.1.1
  • Version 4.1.2
  • Version 4.1.3
  • Version 4.1.4
  • Version 4.1.5
  • Version 4.2.0
  • Version 4.2.1
  • Version 4.2.2
  • Version 4.2.3

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2013-4329
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2013-4329