All vulnerabilities

Servers and applications

CVE-2012-4544

The PV domain builder in Xen 4.2 and earlier does not validate the size of the kernel or ramdisk (1) before or (2) after decompression, which allows local guest administrators to cause a denial of service (domain 0 memory consumption) via a crafted (a) kernel or (b) ramdisk.

Severity
Low 2.1
Published
31 Oct 2012
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
0.4% in the next 30 daysHigher than 36% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Improper input validation (CWE-20)
Attack
Needs local access · No login needed
Attacker can
Slow it down
CVSS vector
AV:L/AC:L/Au:N/C:N/I:N/A:P
Sources
NVD

Affected software

SoftwareAffected versions
XenServers and applications · cpe:o:xen:xen
  • Every version up to 4.2.0
  • Version 4.1.0
  • Version 4.1.1
  • Version 4.1.2
  • Version 4.1.3

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2012-4544
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2012-4544