What’s Vulnerable › Vulnerabilities
CVE-2009-3228
- 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: 2009-10-19 · updated 2026-06-16
- Weakness: CWE-909
Description
The tc_fill_tclass function in net/sched/sch_api.c in the tc subsystem in the Linux kernel 2.4.x before 2.4.37.6 and 2.6.x before 2.6.31-rc9 does not initialize certain (1) tcm__pad1 and (2) tcm__pad2 structure members, which might allow local users to obtain sensitive information from kernel memory via unspecified vectors.
Affected products
- Canonical Ubuntu Linux: 6.06, 8.04, 8.10, 9.04, 9.10
- Linux kernel: from 2.4.0 before 2.4.37.6; from 2.6.0 before 2.6.31; 2.6.31, 2.6.31-rc1, 2.6.31-rc2, 2.6.31-rc3, 2.6.31-rc4, 2.6.31-rc5 (+3) — fixed in 2.4.37.6, 2.6.31
- RedHat Enterprise Linux Desktop: 5.0
- RedHat Enterprise Linux Eus: 5.4
- RedHat Enterprise Linux Server: 5.0
- RedHat Enterprise Linux Workstation: 5.0
How to fix
Upgrade to a fixed version: Linux kernel 2.4.37.6, 2.6.31. Check the vendor advisory for mitigations.
References
- http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.4.37.y.git%3Ba=commit%3Bh=096ed17f20affc2db0e307658c69b67433992a7a
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=16ebb5e0b36ceadc8186f71d68b0c4fa4b6e781b
- http://lists.vmware.com/pipermail/security-announce/2010/000082.html
- http://patchwork.ozlabs.org/patch/32830/
- http://secunia.com/advisories/37084
- http://secunia.com/advisories/38794
- http://secunia.com/advisories/38834
- http://www.kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.37.6
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/v2.6.31/ChangeLog-2.6.31-rc9
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:198
- http://www.openwall.com/lists/oss-security/2009/09/03/1
- http://www.openwall.com/lists/oss-security/2009/09/05/2
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