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.

References

• https://nvd.nist.gov/vuln/detail/CVE-2009-3228
• https://bugzilla.redhat.com/show_bug.cgi?id=520990
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6757
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9409
• https://rhn.redhat.com/errata/RHSA-2009-1540.html
• https://rhn.redhat.com/errata/RHSA-2009-1548.html
• http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.4.37.y.git;a=commit;h=096ed17f20affc2db0e307658c69b67433992a7a
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=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
• http://www.openwall.com/lists/oss-security/2009/09/06/2
• http://www.openwall.com/lists/oss-security/2009/09/07/2
• http://www.openwall.com/lists/oss-security/2009/09/17/1
• http://www.openwall.com/lists/oss-security/2009/09/17/9
• http://www.redhat.com/support/errata/RHSA-2009-1522.html
• http://www.securitytracker.com/id?1023073
• http://www.ubuntu.com/usn/usn-864-1
• http://www.vupen.com/english/advisories/2010/0528