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Fencer Intel
low 1.9

CVE-2010-4083 json

The copy_semid_to_user function in ipc/sem.c in the Linux kernel before 2.6.36 does not initialize a certain structure, which allows local…

published 2010-11-30 15 y ago modified 2026-06-16 4 mo ago also EUVD-2010-4059

cvss
1.9
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 33%
public exploits
0
none known

Summary

The copy_semid_to_user function in ipc/sem.c in the Linux kernel before 2.6.36 does not initialize a certain structure, which allows local users to obtain potentially sensitive information from kernel stack memory via a (1) IPC_INFO, (2) SEM_INFO, (3) IPC_STAT, or (4) SEM_STAT command in a semctl system call.

Patch / fix

  • linux linux_kernel 2.6.36
  • kernel RHEL 6 2.6.32-71.14.1.el6
  • perf RHEL 6 2.6.32-71.14.1.el6
  • kernel-kdump RHEL 6 2.6.32-71.14.1.el6
  • kernel-firmware RHEL 6 2.6.32-71.14.1.el6
  • kernel-bootwrapper RHEL 6 2.6.32-71.14.1.el6
  • kernel-debuginfo-common-i686 RHEL 6 2.6.32-71.14.1.el6
  • kernel-debuginfo-common-ppc64 RHEL 6 2.6.32-71.14.1.el6
  • kernel-debuginfo-common-s390x RHEL 6 2.6.32-71.14.1.el6

red hat advisories RHSA-2011:0007RHSA-2011:0004RHSA-2011:0162RHSA-2010:0958

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-2010-4083 updated cvss 1.9

kernel: ipc/sem.c: reading uninitialized stack memory

  • Red Hat MRG Realtime for RHEL 5 Server perf 2.6.33.7-rt29.47.el5rt, kernel-rt 2.6.33.7-rt29.47.el5rt, kernel-rt-trace 2.6.33.7-rt29.47.el5rt, kernel-rt-vanilla 2.6.33.7-rt29.47.el5rt, kernel-rt-debuginfo-common 2.6.33.7-rt29.47.el5rt
    fixed: vendor fix RHSA-2010:0958
  • Red Hat Enterprise Linux (v. 5 server) kernel 2.6.18-194.32.1.el5, kernel-PAE 2.6.18-194.32.1.el5, kernel-xen 2.6.18-194.32.1.el5, kernel-kdump 2.6.18-194.32.1.el5, kernel-debuginfo-common 2.6.18-194.32.1.el5
    fixed: vendor fix RHSA-2011:0004
  • Red Hat Enterprise Linux AS version 4 kernel 2.6.9-89.35.1.EL, kernel-smp 2.6.9-89.35.1.EL, kernel-xenU 2.6.9-89.35.1.EL, kernel-hugemem 2.6.9-89.35.1.EL, kernel-largesmp 2.6.9-89.35.1.EL
    fixed: vendor fix RHSA-2011:0162
  • Red Hat Enterprise Linux Desktop (v. 5 client) kernel 2.6.18-194.32.1.el5, kernel-PAE 2.6.18-194.32.1.el5, kernel-xen 2.6.18-194.32.1.el5, kernel-kdump 2.6.18-194.32.1.el5, kernel-debuginfo-common 2.6.18-194.32.1.el5
    fixed: vendor fix RHSA-2011:0004
  • Red Hat Enterprise Linux Desktop (v. 6) perf 2.6.32-71.14.1.el6, kernel 2.6.32-71.14.1.el6, kernel-kdump 2.6.32-71.14.1.el6, kernel-firmware 2.6.32-71.14.1.el6, kernel-bootwrapper 2.6.32-71.14.1.el6, kernel-debuginfo-common-i686 2.6.32-71.14.1.el6, +3 more
    fixed: vendor fix RHSA-2011:0007
  • Red Hat Enterprise Linux Desktop version 4 kernel 2.6.9-89.35.1.EL, kernel-smp 2.6.9-89.35.1.EL, kernel-xenU 2.6.9-89.35.1.EL, kernel-hugemem 2.6.9-89.35.1.EL, kernel-largesmp 2.6.9-89.35.1.EL Red Hat Enterprise Linux ES version 4 kernel 2.6.9-89.35.1.EL, kernel-smp 2.6.9-89.35.1.EL, kernel-xenU 2.6.9-89.35.1.EL, kernel-hugemem 2.6.9-89.35.1.EL, kernel-largesmp 2.6.9-89.35.1.EL
    fixed: vendor fix RHSA-2011:0162
  • Red Hat Enterprise Linux HPC Node (v. 6) perf 2.6.32-71.14.1.el6, kernel 2.6.32-71.14.1.el6, kernel-kdump 2.6.32-71.14.1.el6, kernel-firmware 2.6.32-71.14.1.el6, kernel-bootwrapper 2.6.32-71.14.1.el6, kernel-debuginfo-common-i686 2.6.32-71.14.1.el6, +3 more Red Hat Enterprise Linux Server (v. 6) perf 2.6.32-71.14.1.el6, kernel 2.6.32-71.14.1.el6, kernel-kdump 2.6.32-71.14.1.el6, kernel-firmware 2.6.32-71.14.1.el6, kernel-bootwrapper 2.6.32-71.14.1.el6, kernel-debuginfo-common-i686 2.6.32-71.14.1.el6, +3 more Red Hat Enterprise Linux Workstation (v. 6) perf 2.6.32-71.14.1.el6, kernel 2.6.32-71.14.1.el6, kernel-kdump 2.6.32-71.14.1.el6, kernel-firmware 2.6.32-71.14.1.el6, kernel-bootwrapper 2.6.32-71.14.1.el6, kernel-debuginfo-common-i686 2.6.32-71.14.1.el6, +3 more
    fixed: vendor fix RHSA-2011:0007
  • Red Hat Enterprise Linux WS version 4 kernel 2.6.9-89.35.1.EL, kernel-smp 2.6.9-89.35.1.EL, kernel-xenU 2.6.9-89.35.1.EL, kernel-hugemem 2.6.9-89.35.1.EL, kernel-largesmp 2.6.9-89.35.1.EL
    fixed: vendor fix RHSA-2011:0162

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

0.39% chance of exploitation in the next 30 days, higher than 33% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 1.9 AV:L/AC:M/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-909 Missing Initialization of Resource
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.