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4.9

Linux kernel 2.6.23 32-bit Xen guests can be crashed

CVE-2013-0190 · published 13 years ago
Summary

The Linux kernel used with Xen can crash a 32-bit virtual machine when a user inside the guest triggers a special error. This causes the guest operating system to stop working, which may interrupt services. Update the kernel to a patched version or apply the vendor's recommended fix to prevent the crash.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
linux linux_kernel <= 2.6.23
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Original advisory text
The xen_failsafe_callback function in Xen for the Linux kernel 2.6.23 and other versions, when running a 32-bit PVOPS guest, allows local users to cause a denial of service (guest crash) by trigger...
The xen_failsafe_callback function in Xen for the Linux kernel 2.6.23 and other versions, when running a 32-bit PVOPS guest, allows local users to cause a denial of service (guest crash) by triggering an iret fault, leading to use of an incorrect stack pointer and stack corruption.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker partial control (estimated)
Severity
4.9 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-20Improper Input Validation
Timeline
Published13 Feb 2013
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2013-0190 · NVD
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