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Fencer Intel
medium 5.5

CVE-2010-2942 json

The actions implementation in the network queueing functionality in the Linux kernel before 2.6.36-rc2 does not properly initialize certain…

published 16y ago modified 4mo ago also EUVD-2010-2946

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 36%
public exploits
0
none known

Summary

The actions implementation in the network queueing functionality in the Linux kernel before 2.6.36-rc2 does not properly initialize certain structure members when performing dump operations, which allows local users to obtain potentially sensitive information from kernel memory via vectors related to (1) the tcf_gact_dump function in net/sched/act_gact.c, (2) the tcf_mirred_dump function in net/sched/act_mirred.c, (3) the tcf_nat_dump function in net/sched/act_nat.c, (4) the tcf_simp_dump function in net/sched/act_simple.c, and (5) the tcf_skbedit_dump function in net/sched/act_skbedit.c.

Patch / fix

  • 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
  • kernel-rt enterprise mrg 1 2.6.33.7-rt29.45.el5rt
  • perf enterprise mrg 1 2.6.33.7-rt29.45.el5rt
  • kernel-rt-trace enterprise mrg 1 2.6.33.7-rt29.45.el5rt

red hat advisories RHSA-2010:0723RHSA-2010:0771RHSA-2010:0779

  • kernel-source openSUSE Tumbleweed 4.8.13-1.1

opensuse advisories openSUSE-SU-2024:10128-1

Is CVE-2010-2942 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-2010-2942 updated cvss 2.1

kernel: net sched: fix some kernel memory leaks

  • Red Hat MRG Realtime for RHEL 5 Server perf 2.6.33.7-rt29.45.el5rt, kernel-rt 2.6.33.7-rt29.45.el5rt, kernel-rt-trace 2.6.33.7-rt29.45.el5rt, kernel-rt-vanilla 2.6.33.7-rt29.45.el5rt, kernel-rt-debuginfo-common 2.6.33.7-rt29.45.el5rt
    fixed: vendor fix RHSA-2010:0771
  • 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
    fixed: vendor fix RHSA-2010:0723
  • Red Hat Enterprise Linux AS version 4 kernel 2.6.9-89.31.1.EL, kernel-smp 2.6.9-89.31.1.EL, kernel-xenU 2.6.9-89.31.1.EL, kernel-hugemem 2.6.9-89.31.1.EL, kernel-largesmp 2.6.9-89.31.1.EL
    fixed: vendor fix RHSA-2010:0779
  • 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 Enterprise Linux Desktop version 4 kernel 2.6.9-89.31.1.EL, kernel-smp 2.6.9-89.31.1.EL, kernel-xenU 2.6.9-89.31.1.EL, kernel-hugemem 2.6.9-89.31.1.EL, kernel-largesmp 2.6.9-89.31.1.EL Red Hat Enterprise Linux ES version 4 kernel 2.6.9-89.31.1.EL, kernel-smp 2.6.9-89.31.1.EL, kernel-xenU 2.6.9-89.31.1.EL, kernel-hugemem 2.6.9-89.31.1.EL, kernel-largesmp 2.6.9-89.31.1.EL Red Hat Enterprise Linux WS version 4 kernel 2.6.9-89.31.1.EL, kernel-smp 2.6.9-89.31.1.EL, kernel-xenU 2.6.9-89.31.1.EL, kernel-hugemem 2.6.9-89.31.1.EL, kernel-largesmp 2.6.9-89.31.1.EL
    fixed: vendor fix RHSA-2010:0779

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

0.42% chance of exploitation in the next 30 days, higher than 36% 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:H/I:N/A:N
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-401 Missing Release of Memory after Effective Lifetime
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.