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Fencer Intel
medium 4.9

CVE-2010-2938 json

arch/x86/hvm/vmx/vmcs.c in the virtual-machine control structure (VMCS) implementation in the Linux kernel 2.6.18 on Red Hat Enterprise Lin…

published 16y ago modified 4mo ago also EUVD-2010-2942

cvss
4.9
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 28%
public exploits
0
none known

Summary

arch/x86/hvm/vmx/vmcs.c in the virtual-machine control structure (VMCS) implementation in the Linux kernel 2.6.18 on Red Hat Enterprise Linux (RHEL) 5, when an Intel platform without Extended Page Tables (EPT) functionality is used, accesses VMCS fields without verifying hardware support for these fields, which allows local users to cause a denial of service (host OS crash) by requesting a VMCS dump for a fully virtualized Xen guest.

Patch / fix

  • xen Debian 14, Debian 13, Debian 12 4.0.1-1

debian advisories DEBIAN-CVE-2010-2938

  • kernel RHEL 5 2.6.18-194.17.1.el5
  • kernel-PAE RHEL 5 2.6.18-194.17.1.el5
  • kernel-xen RHEL 5 2.6.18-194.17.1.el5
  • kernel-kdump RHEL 5 2.6.18-194.17.1.el5
  • kernel-debuginfo-common RHEL 5 2.6.18-194.17.1.el5

red hat advisories RHSA-2010:0723

Is CVE-2010-2938 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2010-2938 updated cvss 5.5

kernel: guest crashes on non-EPT machines may crash the host as well

  • Red Hat Enterprise Linux (v. 5 server) kernel 2.6.18-194.17.1.el5, kernel-PAE 2.6.18-194.17.1.el5, kernel-xen 2.6.18-194.17.1.el5, kernel-kdump 2.6.18-194.17.1.el5, kernel-debuginfo-common 2.6.18-194.17.1.el5 Red Hat Enterprise Linux Desktop (v. 5 client) kernel 2.6.18-194.17.1.el5, kernel-PAE 2.6.18-194.17.1.el5, kernel-xen 2.6.18-194.17.1.el5, kernel-kdump 2.6.18-194.17.1.el5, kernel-debuginfo-common 2.6.18-194.17.1.el5
    fixed: vendor fix RHSA-2010:0723

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.35% chance of exploitation in the next 30 days, higher than 28% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 4.9 AV:L/AC:L/Au:N/C:N/I:N/A:C

Classification

Weakness
  • CWE-399 Resource Management Errors
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.