CVE-2010-2942

Name: CVE-2010-2942
Creator: NVD / NIST
Published: 2010-09-21T18:00:02.127+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.42%

Last modified Jun 16, 2026

CVE-2010-2942 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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.. EPSS estimates a 0.42% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

0.42%

33.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-401

Affected Software

Vendor	Product	Versions	Update
Linux	Linux Kernel	<= 2.6.35.13	—
Linux	Linux Kernel	2.6.36	—
Canonical	Ubuntu Linux	6.06	—
Canonical	Ubuntu Linux	8.04	—
Canonical	Ubuntu Linux	9.04	—
Canonical	Ubuntu Linux	9.10	—
Canonical	Ubuntu Linux	10.04	—
Canonical	Ubuntu Linux	10.10	—
Opensuse	Opensuse	11.1	—
Opensuse	Opensuse	11.3	—
Suse	Suse Linux Enterprise Desktop	10	Sp3
Suse	Suse Linux Enterprise Desktop	11	—
Suse	Suse Linux Enterprise Server	10	Sp3
Suse	Suse Linux Enterprise Server	11	—
Avaya	Aura Communication Manager	5.2	—
Avaya	Aura Presence Services	6.0	—
Avaya	Aura Presence Services	6.1	—
Avaya	Aura Presence Services	6.1.1	—
Avaya	Aura Session Manager	1.1	—
Avaya	Aura Session Manager	5.2	—
Avaya	Aura Session Manager	6.0	—
Avaya	Aura System Manager	5.2	—
Avaya	Aura System Manager	6.0	—
Avaya	Aura System Manager	6.1	—
Avaya	Aura System Manager	6.1.1	—
Avaya	Aura System Platform	1.1	—
Avaya	Aura System Platform	6.0	—
Avaya	Iq	5.0	—
Avaya	Iq	5.1	—
Avaya	Voice Portal	5.0	—
Avaya	Voice Portal	5.1	—
Vmware	Esx	4.0	—
Vmware	Esx	4.1	—

References

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.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00005.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00000.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00004.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.htmlMailing List, Third Party Advisory
http://patchwork.ozlabs.org/patch/61857/Mailing List, Patch, Third Party Advisory
http://secunia.com/advisories/41512Broken Link
http://secunia.com/advisories/46397Broken Link
http://support.avaya.com/css/P8/documents/100113326Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.36-rc2Broken Link
http://www.openwall.com/lists/oss-security/2010/08/18/1Mailing List, Patch, Third Party Advisory
http://www.openwall.com/lists/oss-security/2010/08/19/4Mailing List, Patch, Third Party Advisory
http://www.redhat.com/support/errata/RHSA-2010-0723.htmlBroken Link
http://www.redhat.com/support/errata/RHSA-2010-0771.htmlBroken Link
http://www.redhat.com/support/errata/RHSA-2010-0779.htmlBroken Link
http://www.securityfocus.com/archive/1/520102/100/0/threadedThird Party Advisory, VDB Entry
http://www.securityfocus.com/bid/42529Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-1000-1Third Party Advisory
http://www.vmware.com/security/advisories/VMSA-2011-0012.htmlThird Party Advisory
http://www.vupen.com/english/advisories/2010/2430Broken Link
http://www.vupen.com/english/advisories/2011/0298Broken Link
https://bugzilla.redhat.com/show_bug.cgi?id=624903Issue Tracking, Patch, Third Party Advisory
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.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00005.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00000.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00004.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.htmlMailing List, Third Party Advisory
http://patchwork.ozlabs.org/patch/61857/Mailing List, Patch, Third Party Advisory
http://secunia.com/advisories/41512Broken Link
http://secunia.com/advisories/46397Broken Link
http://support.avaya.com/css/P8/documents/100113326Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.36-rc2Broken Link
http://www.openwall.com/lists/oss-security/2010/08/18/1Mailing List, Patch, Third Party Advisory
http://www.openwall.com/lists/oss-security/2010/08/19/4Mailing List, Patch, Third Party Advisory
http://www.redhat.com/support/errata/RHSA-2010-0723.htmlBroken Link
http://www.redhat.com/support/errata/RHSA-2010-0771.htmlBroken Link
http://www.redhat.com/support/errata/RHSA-2010-0779.htmlBroken Link
http://www.securityfocus.com/archive/1/520102/100/0/threadedThird Party Advisory, VDB Entry
http://www.securityfocus.com/bid/42529Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-1000-1Third Party Advisory
http://www.vmware.com/security/advisories/VMSA-2011-0012.htmlThird Party Advisory
http://www.vupen.com/english/advisories/2010/2430Broken Link
http://www.vupen.com/english/advisories/2011/0298Broken Link
https://bugzilla.redhat.com/show_bug.cgi?id=624903Issue Tracking, Patch, Third Party Advisory

Timeline

Published: Sep 21, 2010
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2010-2942?

How severe is CVE-2010-2942?

CVE-2010-2942 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.42% probability of exploitation in the next 30 days.

How do I fix CVE-2010-2942?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2010-2942?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST