kernel: net sched: fix some kernel memory leaks
Published Sep 21, 2010
5.5
MEDIUMCVSS 3.1
EPSS 0.42%
Description
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.
Affected products
No data.
Configuration 1
- ≤ 2.6.35.13
- 2.6.36
- 2.6.36
Configuration 2
- 6.06
- 8.04
- 9.04
- 9.10
- 10.04
- 10.10
Configuration 3
- 11.1
- 11.3
- 10
- 11
- 11
- 10
- 11
- 11
Configuration 4
- 5.2
- 6.0
- 6.1
- 6.1.1
- 1.1
- 5.2
- 6.0
- 5.2
- 6.0
- 6.1
- 6.1.1
- 1.1
- 6.0
- 6.0
- 5.0
- 5.1
- 5.0
- 5.1
- 5.1
No data.
MRG for RHEL-5
kernel-rt-0:2.6.33.7-rt29.45.el5rt
Fixed · RHSA-2010:0771
Red Hat Enterprise Linux 4
kernel-0:2.6.9-89.31.1.EL
Fixed · RHSA-2010:0779
Red Hat Enterprise Linux 5
kernel-0:2.6.18-194.17.1.el5
Fixed · RHSA-2010:0723
| Product | Package | State | Advisory |
|---|---|---|---|
| MRG for RHEL-5 | kernel-rt-0:2.6.33.7-rt29.45.el5rt | Fixed | RHSA-2010:0771 |
| Red Hat Enterprise Linux 4 | kernel-0:2.6.9-89.31.1.EL | Fixed | RHSA-2010:0779 |
| Red Hat Enterprise Linux 5 | kernel-0:2.6.18-194.17.1.el5 | Fixed | RHSA-2010:0723 |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the version of Linux kernel as shipped with Red Hat Enterprise Linux 3 as it did not include upstream commit be84c7f6 (history repository) that introduced the problem. A future kernel update in Red Hat Enterprise Linux 4, 5 and Red Hat Enterprise MRG will address this issue.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.42% (0.00421) | 34.20th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.42% (0.00421) | 33.41th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.04% (0.00044) | 10.51th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.05% (0.00052) | 22.07th | v3 (v2023.03.01) |
| Jun 13, 2024 | 0.05% (0.00052) | 20.16th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.05% (0.00052) | 18.13th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.55% (0.01547) | 74.98th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.55% (0.01547) | 74.94th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.55% (0.01547) | 72.92th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.55% (0.01547) | 51.82th | v2 (v2022.01.01) |
References (26)
- http://git.kernel.org/?p=linux/kernel/git/davem/net-2.6.git%3Ba=commit%3Bh=1c40be12f7d8ca1d387510d39787b12e512a7ce8 x_refsource_CONFIRM
- http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00004.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00005.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00000.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00004.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://patchwork.ozlabs.org/patch/61857/ x_refsource_CONFIRMMailing ListPatchThird Party Advisory
- http://secunia.com/advisories/41512 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/46397 third-party-advisoryx_refsource_SECUNIABroken Link
- http://support.avaya.com/css/P8/documents/100113326 x_refsource_CONFIRMThird Party Advisory
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.36-rc2 x_refsource_CONFIRMBroken Link
- http://www.openwall.com/lists/oss-security/2010/08/18/1 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://www.openwall.com/lists/oss-security/2010/08/19/4 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://www.redhat.com/support/errata/RHSA-2010-0723.html vendor-advisoryx_refsource_REDHATBroken Link
- http://www.redhat.com/support/errata/RHSA-2010-0771.html vendor-advisoryx_refsource_REDHATBroken Link
- http://www.redhat.com/support/errata/RHSA-2010-0779.html vendor-advisoryx_refsource_REDHATBroken Link
- http://www.securityfocus.com/archive/1/520102/100/0/threaded mailing-listx_refsource_BUGTRAQThird Party AdvisoryVDB Entry
- http://www.securityfocus.com/bid/42529 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-1000-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.vmware.com/security/advisories/VMSA-2011-0012.html x_refsource_CONFIRMThird Party Advisory
- http://www.vupen.com/english/advisories/2010/2430 vdb-entryx_refsource_VUPENBroken Link
- http://www.vupen.com/english/advisories/2011/0298 vdb-entryx_refsource_VUPENBroken Link
- https://access.redhat.com/security/cve/CVE-2010-2942 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=624903 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2010-2942
- https://www.cve.org/CVERecord?id=CVE-2010-2942
Change history (0)
No recorded changes yet.