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low 2.1

CVE-2010-3881 json

arch/x86/kvm/x86.c in the Linux kernel before 2.6.36.2 does not initialize certain structure members, which allows local users to obtain po…

published 15y ago modified 4mo ago also EUVD-2010-3859

cvss
2.1
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 40%
public exploits
0
none known

Summary

arch/x86/kvm/x86.c in the Linux kernel before 2.6.36.2 does not initialize certain structure members, which allows local users to obtain potentially sensitive information from kernel stack memory via read operations on the /dev/kvm device.

Patch / fix

  • linux linux_kernel 2.6.36.2
  • kernel RHEL 6 2.6.32-131.0.15.el6
  • perf RHEL 6 2.6.32-131.0.15.el6
  • kernel-kdump RHEL 6 2.6.32-131.0.15.el6
  • kernel-firmware RHEL 6 2.6.32-131.0.15.el6
  • kernel-bootwrapper RHEL 6 2.6.32-131.0.15.el6
  • kernel-debuginfo-common-i686 RHEL 6 2.6.32-131.0.15.el6
  • kernel-debuginfo-common-ppc64 RHEL 6 2.6.32-131.0.15.el6
  • kernel-debuginfo-common-s390x RHEL 6 2.6.32-131.0.15.el6

red hat advisories RHSA-2011:0542RHSA-2011:0883RHSA-2010:0998

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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-2010-3881 updated cvss 1.9

kvm: arch/x86/kvm/x86.c: reading uninitialized stack memory

  • Red Hat Enterprise Linux 5 kernel
    affected: no fix available
  • Red Hat Enterprise Linux Desktop (v. 6) perf 2.6.32-131.0.15.el6, kernel 2.6.32-131.0.15.el6, kernel-firmware 2.6.32-131.0.15.el6, kernel-debuginfo-common-i686 2.6.32-131.0.15.el6, kernel-debuginfo-common-x86_64 2.6.32-131.0.15.el6
    fixed: vendor fix RHSA-2011:0542
  • Red Hat Enterprise Linux Desktop Multi OS (v. 5 client) kvm 83-164.el5_5.30, kmod-kvm 83-164.el5_5.30, kvm-tools 83-164.el5_5.30, kvm-qemu-img 83-164.el5_5.30
    fixed: vendor fix RHSA-2010:0998
  • Red Hat Enterprise Linux HPC Node (v. 6) perf 2.6.32-131.0.15.el6, kernel 2.6.32-131.0.15.el6, kernel-firmware 2.6.32-131.0.15.el6, kernel-debuginfo-common-x86_64 2.6.32-131.0.15.el6 Red Hat Enterprise Linux Server (v. 6) perf 2.6.32-131.0.15.el6, kernel 2.6.32-131.0.15.el6, kernel-kdump 2.6.32-131.0.15.el6, kernel-firmware 2.6.32-131.0.15.el6, kernel-bootwrapper 2.6.32-131.0.15.el6, kernel-debuginfo-common-i686 2.6.32-131.0.15.el6, +3 more
    fixed: vendor fix RHSA-2011:0542
  • Red Hat Enterprise Linux Server EUS (v. 6.0) perf 2.6.32-71.31.1.el6, kernel 2.6.32-71.31.1.el6, kernel-kdump 2.6.32-71.31.1.el6, kernel-firmware 2.6.32-71.31.1.el6, kernel-bootwrapper 2.6.32-71.31.1.el6, kernel-debuginfo-common-i686 2.6.32-71.31.1.el6, +3 more
    fixed: vendor fix RHSA-2011:0883
  • Red Hat Enterprise Linux Virtualization (v. 5 server) kvm 83-164.el5_5.30, kmod-kvm 83-164.el5_5.30, kvm-tools 83-164.el5_5.30, kvm-qemu-img 83-164.el5_5.30
    fixed: vendor fix RHSA-2010:0998
  • Red Hat Enterprise Linux Workstation (v. 6) perf 2.6.32-131.0.15.el6, kernel 2.6.32-131.0.15.el6, kernel-firmware 2.6.32-131.0.15.el6, kernel-debuginfo-common-i686 2.6.32-131.0.15.el6, kernel-debuginfo-common-x86_64 2.6.32-131.0.15.el6
    fixed: vendor fix RHSA-2011:0542

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

0.46% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
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.