UpHeron
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Servers and applications

CVE-2013-1920

Xen 4.2.x, 4.1.x, and earlier, when the hypervisor is running "under memory pressure" and the Xen Security Module (XSM) is enabled, uses the wrong ordering of operations when extending the per-domain event channel tracking table, which causes a use-after-free and allows local guest kernels to inject arbitrary events and gain privileges via unspecified vectors.

Severity
Medium 4.4
Published
12 Apr 2013
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
0.4% in the next 30 daysHigher than 34% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
CWE-264
Attack
Needs local access · No login needed
Attacker can
Read some data · Change some data · Slow it down
CVSS vector
AV:L/AC:M/Au:N/C:P/I:P/A:P
Sources
NVD

Affected software

SoftwareAffected versions
XenServers and applications · cpe:o:xen:xen
  • Version 4.2.1
  • Version 4.2.0
  • Version 4.1.4
  • Version 4.1.3
All 29 release lines
  • Version 3.0.2
  • Version 3.0.3
  • Version 3.0.4
  • Version 3.1.3
  • Version 3.1.4
  • Version 3.2.0
  • Version 3.2.1
  • Version 3.2.2
  • Version 3.2.3
  • Version 3.3.0
  • Version 3.3.1
  • Version 3.3.2
  • Version 3.4.0
  • Version 3.4.1
  • Version 3.4.2
  • Version 3.4.3
  • Version 3.4.4
  • 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 4.2.0
  • Version 4.2.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2013-1920
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2013-1920