CVE-2010-2942

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.

Published: 2010-09-21 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2010-2942 is rated Low Risk (28.6/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.06%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2010-2942

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-09-21 0.04% 0.06% +0.02%
2 2025-03-17 0.05% 0.04% -0.01%
3 2023-03-07 — 0.05% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2010-2942

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 1.8 3.6 [email protected]
2.1 2.0 LOW
AV:L/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 3.9 2.9 [email protected]

Weakness enumeration for CVE-2010-2942

OS Trackers for CVE-2010-2942

vendor priority summary link
redhat medium — https://access.redhat.com/security/cve/CVE-2010-2942
ubuntu low CVE-2010-2942 low priority: Ubuntu including 6 source packages (linux, linux-ec2, linux-fsl-imx51, linux-lts-backport-maverick, linux-mvl-dove, linux-source-2.6.15), 38 status rows across 7 suites (dapper, hardy, jaunty, karmic, lucid, maverick, upstream): released 18, DNE 17, ignored 2, not-affected 1. https://ubuntu.com/security/CVE-2010-2942

Affected software / configurations for CVE-2010-2942

Vendor Product Version Raw CPE
linux linux_kernel <= 2.6.35.13 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel 2.6.36 cpe:2.3:o:linux:linux_kernel:2.6.36:-:*:*:*:*:*:*
linux linux_kernel 2.6.36 cpe:2.3:o:linux:linux_kernel:2.6.36:rc1:*:*:*:*:*:*
canonical ubuntu_linux 6.06 cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:*:*:*:*
canonical ubuntu_linux 8.04 cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:*:*:*:*
canonical ubuntu_linux 9.04 cpe:2.3:o:canonical:ubuntu_linux:9.04:*:*:*:*:*:*:*
canonical ubuntu_linux 9.10 cpe:2.3:o:canonical:ubuntu_linux:9.10:*:*:*:*:*:*:*
canonical ubuntu_linux 10.04 cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:*
canonical ubuntu_linux 10.10 cpe:2.3:o:canonical:ubuntu_linux:10.10:*:*:*:*:*:*:*
opensuse opensuse 11.1 cpe:2.3:o:opensuse:opensuse:11.1:*:*:*:*:*:*:*
opensuse opensuse 11.3 cpe:2.3:o:opensuse:opensuse:11.3:*:*:*:*:*:*:*
suse suse_linux_enterprise_desktop 10 cpe:2.3:o:suse:suse_linux_enterprise_desktop:10:sp3:*:*:*:*:*:*
suse suse_linux_enterprise_desktop 11 cpe:2.3:o:suse:suse_linux_enterprise_desktop:11:-:*:*:*:*:*:*
suse suse_linux_enterprise_desktop 11 cpe:2.3:o:suse:suse_linux_enterprise_desktop:11:sp1:*:*:*:*:*:*
suse suse_linux_enterprise_server 10 cpe:2.3:o:suse:suse_linux_enterprise_server:10:sp3:*:*:*:*:*:*
suse suse_linux_enterprise_server 11 cpe:2.3:o:suse:suse_linux_enterprise_server:11:-:*:*:*:*:*:*
suse suse_linux_enterprise_server 11 cpe:2.3:o:suse:suse_linux_enterprise_server:11:sp1:*:*:*:*:*:*
avaya aura_communication_manager 5.2 cpe:2.3:a:avaya:aura_communication_manager:5.2:*:*:*:*:*:*:*
avaya aura_presence_services 6.0 cpe:2.3:a:avaya:aura_presence_services:6.0:*:*:*:*:*:*:*
avaya aura_presence_services 6.1 cpe:2.3:a:avaya:aura_presence_services:6.1:*:*:*:*:*:*:*
avaya aura_presence_services 6.1.1 cpe:2.3:a:avaya:aura_presence_services:6.1.1:*:*:*:*:*:*:*
avaya aura_session_manager 1.1 cpe:2.3:a:avaya:aura_session_manager:1.1:*:*:*:*:*:*:*
avaya aura_session_manager 5.2 cpe:2.3:a:avaya:aura_session_manager:5.2:*:*:*:*:*:*:*
avaya aura_session_manager 6.0 cpe:2.3:a:avaya:aura_session_manager:6.0:*:*:*:*:*:*:*
avaya aura_system_manager 5.2 cpe:2.3:a:avaya:aura_system_manager:5.2:*:*:*:*:*:*:*
avaya aura_system_manager 6.0 cpe:2.3:a:avaya:aura_system_manager:6.0:*:*:*:*:*:*:*
avaya aura_system_manager 6.1 cpe:2.3:a:avaya:aura_system_manager:6.1:*:*:*:*:*:*:*
avaya aura_system_manager 6.1.1 cpe:2.3:a:avaya:aura_system_manager:6.1.1:*:*:*:*:*:*:*
avaya aura_system_platform 1.1 cpe:2.3:a:avaya:aura_system_platform:1.1:*:*:*:*:*:*:*
avaya aura_system_platform 6.0 cpe:2.3:a:avaya:aura_system_platform:6.0:-:*:*:*:*:*:*
avaya aura_system_platform 6.0 cpe:2.3:a:avaya:aura_system_platform:6.0:sp1:*:*:*:*:*:*
avaya iq 5.0 cpe:2.3:a:avaya:iq:5.0:*:*:*:*:*:*:*
avaya iq 5.1 cpe:2.3:a:avaya:iq:5.1:*:*:*:*:*:*:*
avaya voice_portal 5.0 cpe:2.3:a:avaya:voice_portal:5.0:*:*:*:*:*:*:*
avaya voice_portal 5.1 cpe:2.3:a:avaya:voice_portal:5.1:-:*:*:*:*:*:*
avaya voice_portal 5.1 cpe:2.3:a:avaya:voice_portal:5.1:sp1:*:*:*:*:*:*
vmware esx 4.0 cpe:2.3:o:vmware:esx:4.0:*:*:*:*:*:*:*
vmware esx 4.1 cpe:2.3:o:vmware:esx:4.1:*:*:*:*:*:*:*

References for CVE-2010-2942

URL Tags
http://git.kernel.org/?p=linux/kernel/git/davem/net-2.6.git%3Ba=commit%3Bh=1c40be12f7d8ca1d387510d39787b12e512a7ce8
http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00004.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00005.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00000.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00004.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html Mailing List Third Party Advisory
http://patchwork.ozlabs.org/patch/61857/ Mailing List Patch Third Party Advisory
http://secunia.com/advisories/41512 Broken Link
http://secunia.com/advisories/46397 Broken Link
http://support.avaya.com/css/P8/documents/100113326 Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.36-rc2 Broken Link
http://www.openwall.com/lists/oss-security/2010/08/18/1 Mailing List Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2010/08/19/4 Mailing List Patch Third Party Advisory
http://www.redhat.com/support/errata/RHSA-2010-0723.html Broken Link
http://www.redhat.com/support/errata/RHSA-2010-0771.html Broken Link
http://www.redhat.com/support/errata/RHSA-2010-0779.html Broken Link
http://www.securityfocus.com/archive/1/520102/100/0/threaded Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/42529 Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/USN-1000-1 Third Party Advisory
http://www.vmware.com/security/advisories/VMSA-2011-0012.html Third Party Advisory
http://www.vupen.com/english/advisories/2010/2430 Broken Link
http://www.vupen.com/english/advisories/2011/0298 Broken Link
https://bugzilla.redhat.com/show_bug.cgi?id=624903 Issue Tracking Patch Third Party Advisory
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