What’s Vulnerable › Vulnerabilities

CVE-2010-2942

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2010-09-21 · updated 2026-06-16
• Weakness: CWE-401

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

• Avaya Aura Communication Manager: 5.2
• Avaya Aura Presence Services: 6.0, 6.1, 6.1.1
• Avaya Aura Session Manager: 1.1, 5.2, 6.0
• Avaya Aura System Manager: 5.2, 6.0, 6.1, 6.1.1
• Avaya Aura System Platform: 1.1, 6.0, 6.0-sp1
• Avaya Iq: 5.0, 5.1
• Avaya Voice Portal: 5.0, 5.1, 5.1-sp1
• Canonical Ubuntu Linux: 6.06, 8.04, 9.04, 9.10, 10.04, 10.10
• Linux kernel: through 2.6.35.13; 2.6.36, 2.6.36-rc1
• Opensuse: 11.1, 11.3
• Suse Linux Enterprise Desktop: 10-sp3, 11, 11-sp1
• SUSE Linux Enterprise: 10-sp3, 11, 11-sp1
• VMware ESX: 4.0, 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.html
• http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00005.html
• http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00000.html
• http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00004.html
• http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html
• http://patchwork.ozlabs.org/patch/61857/
• http://secunia.com/advisories/41512
• http://secunia.com/advisories/46397
• http://support.avaya.com/css/P8/documents/100113326
• http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.36-rc2
• http://www.openwall.com/lists/oss-security/2010/08/18/1

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