All vulnerabilities

Servers and applications

CVE-2013-4494

Xen before 4.1.x, 4.2.x, and 4.3.x does not take the page_alloc_lock and grant_table.lock in the same order, which allows local guest administrators with access to multiple vcpus to cause a denial of service (host deadlock) via unspecified vectors.

Severity
Medium 5.2
Published
2 Nov 2013
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
0.7% in the next 30 daysHigher than 52% 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
Take it down
CVSS vector
AV:A/AC:M/Au:S/C:N/I:N/A:C
Sources
NVD

Affected software

SoftwareAffected versions
XenServers and applications · cpe:o:xen:xen
  • From 4.1.0 up to 4.1.6.1
  • From 4.2.0 up to 4.2.5
  • From 4.3.0 up to 4.3.4

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2013-4494
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2013-4494