What’s Vulnerable › Vulnerabilities

CVE-2010-3477

• Severity: low (CVSS 2.1 v2.0)
• 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-399

Description

The tcf_act_police_dump function in net/sched/act_police.c in the actions implementation in the network queueing functionality in the Linux kernel before 2.6.36-rc4 does not properly initialize certain structure members, which allows local users to obtain potentially sensitive information from kernel memory via vectors involving a dump operation. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-2942.

Affected products

• Canonical Ubuntu Linux: 6.06, 8.04, 9.04, 9.10, 10.04, 10.10
• Debian Linux: 5.0
• Linux kernel: before 2.6.36; 2.6.36, 2.6.36-rc1, 2.6.36-rc2, 2.6.36-rc3 — fixed in 2.6.36

How to fix

Upgrade to a fixed version: Linux kernel 2.6.36. Check the vendor advisory for mitigations.

References

• http://git.kernel.org/?p=linux/kernel/git/davem/net-2.6.git%3Ba=commit%3Bh=0f04cfd098fb81fded74e78ea1a1b86cc6c6c31e
• http://secunia.com/advisories/42890
• http://secunia.com/advisories/46397
• http://www.debian.org/security/2010/dsa-2126
• http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.36-rc4
• http://www.redhat.com/support/errata/RHSA-2010-0779.html
• http://www.redhat.com/support/errata/RHSA-2010-0839.html
• http://www.redhat.com/support/errata/RHSA-2011-0007.html
• http://www.securityfocus.com/archive/1/520102/100/0/threaded
• http://www.securitytracker.com/id?1024603
• http://www.ubuntu.com/usn/USN-1000-1
• http://www.vmware.com/security/advisories/VMSA-2011-0012.html

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