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Fencer Intel
medium 5.5

CVE-2011-3637 json

The m_stop function in fs/proc/task_mmu.c in the Linux kernel before 2.6.39 allows local users to cause a denial of service (OOPS) via vect…

published 2012-05-17 14 y ago modified 2026-06-16 4 mo ago also EUVD-2011-3596

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 30%
public exploits
0
none known

Summary

The m_stop function in fs/proc/task_mmu.c in the Linux kernel before 2.6.39 allows local users to cause a denial of service (OOPS) via vectors that trigger an m_start error.

Patch / fix

  • linux linux_kernel 2.6.39
  • kernel RHEL 5 2.6.18-274.17.1.el5
  • kernel-PAE RHEL 5 2.6.18-274.17.1.el5
  • kernel-xen RHEL 5 2.6.18-274.17.1.el5
  • kernel-kdump RHEL 5 2.6.18-274.17.1.el5
  • kernel-debuginfo-common RHEL 5 2.6.18-274.17.1.el5
  • kernel-rt enterprise mrg 2 2.6.33.9-rt31.79.el6rt
  • kernel-rt-trace enterprise mrg 2 2.6.33.9-rt31.79.el6rt
  • kernel-rt-vanilla enterprise mrg 2 2.6.33.9-rt31.79.el6rt

red hat advisories RHSA-2012:0007RHSA-2012:0010

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-2011-3637 updated cvss 4.9

kernel: proc: fix oops on invalid /proc/<pid>/maps access

  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more
    affected: no fix available
  • Red Hat Enterprise Linux (v. 5 server) kernel 2.6.18-274.17.1.el5, kernel-PAE 2.6.18-274.17.1.el5, kernel-xen 2.6.18-274.17.1.el5, kernel-kdump 2.6.18-274.17.1.el5, kernel-debuginfo-common 2.6.18-274.17.1.el5 Red Hat Enterprise Linux Desktop (v. 5 client) kernel 2.6.18-274.17.1.el5, kernel-PAE 2.6.18-274.17.1.el5, kernel-xen 2.6.18-274.17.1.el5, kernel-debuginfo-common 2.6.18-274.17.1.el5
    fixed: vendor fix RHSA-2012:0007
  • Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt 2.6.33.9-rt31.79.el6rt, kernel-rt-trace 2.6.33.9-rt31.79.el6rt, kernel-rt-vanilla 2.6.33.9-rt31.79.el6rt, kernel-rt-firmware 2.6.33.9-rt31.79.el6rt, kernel-rt-debuginfo-common-x86_64 2.6.33.9-rt31.79.el6rt
    fixed: vendor fix RHSA-2012:0010
  • Red Hat Enterprise Linux 4 kernel
    not affected: vulnerable code not present

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

0.36% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.9 AV:L/AC:L/Au:N/C:N/I:N/A:C

Classification

Weakness
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.