Skip to content
Fencer Intel
low 1.9

CVE-2010-4077 json

The ntty_ioctl_tiocgicount function in drivers/char/nozomi.c in the Linux kernel 2.6.36.1 and earlier does not properly initialize a certai…

published 15y ago modified 4mo ago also EUVD-2010-4053

cvss
1.9
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 64%
public exploits
1
Exploit-DB

Summary

The ntty_ioctl_tiocgicount function in drivers/char/nozomi.c in the Linux kernel 2.6.36.1 and earlier does not properly initialize a certain structure member, which allows local users to obtain potentially sensitive information from kernel stack memory via a TIOCGICOUNT ioctl call.

Patch / fix

  • 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-2010:0958

Is CVE-2010-4077 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.

Check with Fencer

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-2010-4077 updated cvss 1.9

kernel: drivers/char/nozomi.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 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 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 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

Timeline

  1. Published
  2. First public exploit (EDB-16973)

Exploit prediction

1.04% chance of exploitation in the next 30 days, higher than 64% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-16973 Linux Kenel 2.6.37-rc1 - serial_core TIOCGICOUNT Leak dos, 2011-03-14
  • securityreason.com http://securityreason.com/securityalert/8129 referenced PoC, tagged "exploit" by a source, unverified

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-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.