UpHeron
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Servers and applications

CVE-2014-1896

The (1) do_send and (2) do_recv functions in io.c in libvchan in Xen 4.2.x, 4.3.x, and 4.4-RC series allows local guests to cause a denial of service or possibly gain privileges via crafted xenstore ring indexes, which triggers a "read or write past the end of the ring."

Severity
Medium 4.9
Published
1 Apr 2014
Last changed
17 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
Improper input validation (CWE-20)
Attack
From the same local network · Needs a login
Attacker can
Read some data · Change some data · Slow it down
CVSS vector
AV:A/AC:M/Au:S/C:P/I:P/A:P
Sources
NVD

Affected software

SoftwareAffected versions
XenServers and applications · cpe:o:xen:xen
  • Version 4.4.0-rc1
  • Version 4.3.1
  • Version 4.3.0
  • Version 4.2.3
All 7 release lines
  • Version 4.2.0
  • Version 4.2.1
  • Version 4.2.2
  • Version 4.2.3
  • Version 4.3.0
  • Version 4.3.1
  • Version 4.4.0-rc1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2014-1896
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2014-1896